Upload
ioan-tilea
View
251
Download
0
Embed Size (px)
Citation preview
8/6/2019 Ansoft Maxwell v11 Userguide
1/238
Maxwell 3D
electronicdesignautomationsoftware
usersguide Maxwell3D
11
AnsoftElectromagneticandElectromechanicalAnalysis
ANSOFT Korea http://ansoft.co.kr mail to : [email protected]
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
2/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide 2
Contents
ContentsThisdocumentdiscussessomebasicconceptsandterminologyused throughouttheAnsoftMaxwellapplication.Itprovidesanoverviewofthefollowingtopics:
0. Fundamentals
AnsoftMaxwellDesktop
OpeningaDesign
SettingModelType
1
. ParametricModelCreation1.1 BoundaryConditions
1.2 Excitations
5.Examples
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
3/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide 3
AnsoftMaxwellFundamentals
WhatisMaxwell?Maxwellisahigh-performanceinteractivesoftwarepackagethatusesfiniteelementanalysis(FEA)tosolvethree-dimensional(3D)electric,magnetostatic,eddycurrent,andtransientproblems.
Useittocompute:
Staticelectricfields,forces,torques,andcapacitancescaused byvoltagedistributionsandcharges.
Staticmagneticfields,forces,torques,andinductancescausedbyDC
currents,staticexternalmagneticfields,andpermanentmagnets.Time-varyingmagneticfields,forces,torques,andimpedancescausedbyACcurrentsandoscillatingexternalmagneticfields.
Transientmagneticfieldscausedbyelectricalsourcesandpermanentmagnets
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
4/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide 4
InstallingtheAnsoftMaxwellSoftware
SystemRequirementsMicrosoftWindowsXP(32/64),Windows2000,orWindows2003Server.Forup-to-dateinformation,refertotheMaxwellReleaseNotes.
Pentiumbasedcomputer
128MBRAMminimum
8MBVideoCardminimum
Mouseorotherpointingdevice
CD-ROMdrive
InstallingtheAnsoftMaxwellSoftwareForup-to-dateinformation,refertotheMaxwellInstallationGuide
StartingAnsoftMaxwell1. ClicktheMicrosoftStart button,selectPrograms,andselecttheAnsoft, Maxwell11 programgroup.ClickMaxwell 11.2. Or DoubleclickontheMaxwell11iconontheWindowsDesktop
NOTE:YoushouldmakebackupcopiesofallMaxwellprojectscreated withapreviousversionofthesoftwarebeforeopeningtheminMaxwellv11
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
5/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide 5
ConvertingOlderFiles
ConvertingOlderMaxwellfiletoMaxwellv11BecauseofchangestotheMaxwellfileswiththedevelopmentofMaxwellv11,openingaMaxwelldocumentfromanearlierreleasemaytakemore timethanyouareusedtoexperiencing.However,oncethefilehasbeenopenedandsaved,subsequentopeningtimewillreturntonormal
AnsoftMaxwellv11providesawayforyoutoautomaticallyconvertyourMaxwellprojectsfromanearlierversiontotheMaxwellv11format.
ToaccessMaxwellprojectsinanearlierversion.
From Maxwell v11,1. SelectthemenuitemFile > Open2. Opendialog
1. FilesofType:Ansoft Legacy EM Projects (.cls)2. Browsetotheexistingprojectandselectthe.cls file
3. ClicktheOpen button
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
6/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide 6
GettingHelp
GettingHelpIfyouhaveanyquestionswhileyouareusingAnsoftMaxwellyou canfindanswersinseveralways:
Ansoft Maxwell Online Help providesassistancewhileyouareworking.Togethelpaboutaspecific,activedialogbox,clicktheHelp buttoninthedialogboxorpresstheF1 key.SelectthemenuitemHelp > Contents toaccesstheonlinehelpsystem.
Tooltips areavailabletoprovideinformationabouttoolsonthetoolbarsordialogboxes.Whenyouholdthepointeroveratool forabrieftime,atooltip appearstodisplaythenameofthetool.
Asyoumovethepointeroveratoolorclickamenuitem,theStatusBar atthebottomoftheAnsoftMaxwellwindowprovidesabriefdescriptionofthefunctionofthetoolormenuitem.
TheAnsoftMaxwellGettingStartedguideprovidesdetailedinformationaboutusingMaxwelltocreateandsolve3DEMprojects.
Ansoft Technical SupportTocontactAnsofttechnicalsupportstaffinyourgeographicalarea,pleaselogontotheAnsoftcorporatewebsite,www.ansoft.com andselectContact.
YourAnsoftsalesengineermayalsobecontactedinordertoobtainthisinformation.
VisitingtheAnsoftWebSiteIfyourcomputerisconnectedtotheInternet,youcanvisitthe AnsoftWebsitetolearnmoreabouttheAnsoftcompanyandproducts.
FromtheAnsoftDesktopSelectthemenuitemHelp > Ansoft Corporate Website toaccesstheOnlineTechnicalSupport(OTS)system.
FromyourInternetbrowser
Visitwww.ansoft.com
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
7/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide 7
GettingHelp
ForTechnicalSupportThefollowinglinkwilldirectyoutotheAnsoftSupportPage.TheAnsoftSupportPagesprovideadditionaldocumentation,training,andapplicationnotes.
WebSite:http://www.ansoft.com/support.cfm
TechnicalSupport:
9-4EST:
Pittsburgh, PA(412)261-3200x0 AskforTechnicalSupport
Burlington, MA(781)229-8900x0 AskforTechnicalSupport
9-4PST:
San Jose, CA(408)261-9095x0 AskforTechnicalSupport
Portland, OR(503)906-7944or(503)906-7947
El Segundo, CA(310)426-2287 AskforTechnicalSupport
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
8/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide 8
WebUpdate
WebUpdateThisnewfeatureallowsyoutoupdateanyexistingAnsoftsoftwarefromtheWebUpdate window.ThisfeatureautomaticallyscansyoursystemtofindanyAnsoftsoftware,andthenallowsyoutodownloadanyupdatesiftheyareavailable.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
9/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide 9
AnsoftTerms
AnsoftTermsTheAnsoftMaxwellwindowhasseveraloptionalpanels:
AProject Manager whichcontainsadesigntreewhichliststhestructureoftheproject.
AMessage Manager thatallowsyoutoviewanyerrorsorwarningsthatoccurbeforeyoubeginasimulation.
AProperty Window thatdisplaysandallowsyoutochangemodelparametersorattributes.
AProgress Window thatdisplayssolutionprogress.A3D Modeler Window whichcontainsthemodelandmodeltreefortheactivedesign.Formoreinformationaboutthe3DModelerWindow, seechapter1.
Menubar
ProgressWindow
PropertyWindow
MessageManager
ProjectManagerwithprojecttree
Statusbar
3DModelerWindow
Toolbars
CoordinateEntryFields
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
10/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide 10
AnsoftTerms
ProjectManager
Project
Design
DesignResults
DesignSetup
DesignAutomation
ParametricOptimizationSensitivityStatistical
ProjectManagerWindow
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
11/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide 11
AnsoftTerms
PropertyWindow
PropertyWindow
Propertytabs
Propertybuttons
Propertytable
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
12/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide 12
AnsoftTerms
Ansoft3DModeler
EdgeVertex
PlaneCoordinateSystem(CS)
Origin
FaceModel
3DModelerWindow
Graphicsarea
Model
3DModelerdesigntree
Contextmenu
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
13/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide 13
AnsoftTerms
3DModelerDesignTree
Grouped by Material
Object View
Material
Object
ObjectCommandHistory
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
14/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide 14
DesignWindows
DesignWindowsIntheAnsoftMaxwellDesktop,eachprojectcanhavemultipledesignsandeachdesignisdisplayedinaseparatewindow.
Youcanhavemultipleprojectsanddesignwindowsopenatthesametime.Also,youcanhavemultipleviewsofthesamedesignvisibleatthesametime.
Toarrangethewindows,youcandragthembythetitlebar,andresizethembydraggingacornerorborder.Also,youcanselectoneofthefollowingmenuoptions:Window >Cascade,Window >Tile Vertically,orWindow > T ileHorizontally.ToorganizeyourAnsoftMaxwellwindow,youcaniconizeopendesigns.ClicktheIconize**symbolintheupperrightcornerofthedocumentborder.AniconappearsinthelowerpartoftheAnsoftMaxwellwindow.Iftheiconisnotvisible,itmaybebehindanotheropendocument.Resizeanyopendocumentsasnecessary.SelectthemenuitemWindow > Arrange Icons toarrangethematthebottomoftheAnsoftMaxwellwindow.
SelectthemenuitemWindow > Close All tocloseallopendesign.YouarepromptedtoSave unsaveddesigns.
Designicons
IconizeSymbol
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
15/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide 15
Toolbars
ToolbarsThetoolbarbuttonsareshortcutsforfrequentlyusedcommands. MostoftheavailabletoolbarsaredisplayedinthisillustrationoftheAnsoftMaxwellinitialscreen,butyourAnsoftMaxwellwindowprobablywillnotbearrangedthisway.Youcancustomizeyourtoolbardisplayinawaythatisconvenientforyou.
Sometoolbarsarealwaysdisplayed;othertoolbarsdisplayautomaticallywhenyouselectadocumentoftherelatedtype.Forexample,whenyouselecta2Dreportfromtheprojecttree,the2Dreporttoolbardisplays.
Todisplayorhideindividualtoolbars:Right-clicktheAnsoftMaxwellwindowframe.
Alistofallthetoolbarsisdisplayed.Thetoolbarswithacheckmarkbesidethemarevisible;thetoolbarswithoutacheckmarkarehidden.Clickthetoolbarnametoturnitsdisplayonoroff
Tomakechangestothetoolbars,selectthemenuitemTools > C ustomize.SeeCustomize and Arrange Toolbars onthenextpage.
Toolbars
AnsoftMaxwell
panels
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
16/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide 16
Toolbars
CustomizeandArrangeToolbarsTocustomizetoolbars:
SelectthemenuitemTools > Customize, orright-clicktheAnsoftMaxwellwindowframeandclickCustomize atthebottomofthetoolbarlist.IntheCustomizedialog,youcandothefollowing:
View a Description of the toolbar commands1. SelectanitemfromtheComponentpull-downlist
2.
SelectanitemfromtheCategorylist3. UsingthemouseclickontheButtonstodisplaythe
Description
4. ClicktheClose buttonwhenyouarefinishedToggle the visibility of toolbars
1. FromtheToolbarlist,togglethecheckboxestocontrolthevisibilityofthetoolbars
2. ClicktheClose buttonwhenyouarefinished
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
17/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide 17
Overview
AnsoftMaxwellDesktopTheAnsoftMaxwellDesktopprovidesanintuitive,easy-to-useinterfacefordevelopingpassiveRFdevicemodels.Creatingdesigns,involves thefollowing:
1. Parametric Model Generation creatingthegeometry,boundariesandexcitations
2. Analysis Setup definingsolutionsetupandfrequencysweeps3. Results creating2Dreportsandfieldplots4. Solve Loop - thesolutionprocessisfullyautomated
Tounderstandhowtheseprocessesco-exist,examinetheillustrationshownbelow.
Design
Solution Type1.1. Boundaries
1.2. Excitations4.1 MeshOperations2. Analysis
SolutionSetupFrequencySweep
1. Parametric ModelGeometry/Materials
3. Results2DReportsFields
MeshRefinement Solve
Update
Converged
Analyze
Finished
4. Solve LoopNO
YES
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
18/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide 18
OpeningaDesign
OpeningaMaxwellprojectThissectiondescribeshowtoopenaneworexistingproject.
Opening a New projectTo open a new project:
1. InanAnsoftMaxwellwindow,selectthemenuitemFile > New .2. SelectthemenuProject > Insert Maxwell Design.
Opening an Existing Maxwell projectTo open an existing project:
1. InanAnsoftMaxwellwindow,selectthemenuFile > Open.UsetheOpendialogtoselecttheproject.
2. ClickOpen toopentheproject
Opening an Existing Project from ExplorerYoucanopenaprojectdirectlyfromtheMicrosoftWindowsExplorer.
To open a project from Windows Explorer, do one of the following:Double-clickonthenameoftheprojectinWindowsExplorer.
Right-clickthenameoftheprojectinWindowsExplorerandselectOpen fromtheshortcutmenu.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
19/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide 19
SetSolutionType
SetSolutionTypeThissectiondescribeshowtosettheSolutionType.TheSolutionTypedefinesthetypeofresults,howtheexcitationsaredefined,andtheconvergence.ThefollowingSolutionTypesareavailable:
1. Magneto static - calculatesthe2. Eddy Current - calculates3. Transient calculatesthe4. Electric calculatesthe
Convergence
1. Magneto static -2. Eddy Current -3. Transient4. Electric
To set the solution type:1. SelectthemenuitemMaxwell > Solution Type2. SolutionTypeWindow:
1. Chooseoneofthefollowing:
1. Magnetostatic2. Eddy Current3. Transient4. Electric
2. ClicktheOK button
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
20/238
1ParametricModelCreation
1-20AnsoftMaxwell3DFieldSimulatorv11UsersGuide
ParametricModelCreationTheAnsoftMaxwell3DModelerisdesignedforeaseofuseandflexibility.Thepowerofthe3DModelerisinitsuniqueabilitytocreatefully parametricdesignswithouteditingcomplexmacros/modelhistory.
Thepurposeofthischapteristoprovideanoverviewofthe3DModelingcapabilities.Byunderstandingthebasicconceptsoutlinedhere youwillbeabletoquicklytakeadvantageofthefullfeaturesetofferedbythe 3DParametricModeler.
Overviewofthe3DModelerUserInterfaceThefollowingpictureshowsthe3DModelerwindow.
3D Modeler Design Tree The3DModelerDesignTreeisanessentialpartoftheuserinterface.Fromhereyoumayaccessthestructuralelementsinadditiontoanyobjectdependenciesandattributes.
Context Menus Contextmenusareaflexiblewayofaccessingfrequentlyusedmenucommandsforthecurrentcontext.Thecontentsofthesemenuschangedynamicallyandareavailablethroughouttheinterfacebyclickingtherightmousebutton.
Graphics Area Thegraphicsareaisusedtointeractwiththestructuralelements.
Graphicsarea
Model
3DModelerdesigntree
Contextmenu
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
21/238
1ParametricModelCreation
1-21AnsoftMaxwell3DFieldSimulatorv11UsersGuide
Overviewofthe3DModelerUserInterface(Continued)Whenusingthe3DModelerinterfaceyouwillalsointeractwithtwoadditionalinterfaces:
Property Window ThePropertyWindowisusedtoviewormodifytheattributesanddimensionsofstructuralobjects
Status Bar/Coordinate Entry TheStatusBarontheAnsoftMaxwellDesktopWindowdisplaystheCoordinateEntryfieldsthatcanbeusedtodefinepointsoroffsetsduringthecreationofstructuralobjects
Propertytabs
Propertybuttons
Propertytable
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
22/238
8/6/2019 Ansoft Maxwell v11 Userguide
23/238
8/6/2019 Ansoft Maxwell v11 Userguide
24/238
1ParametricModelCreation
1-24AnsoftMaxwell3DFieldSimulatorv11UsersGuide
Create a Box (Continued)1. Selectthemenuitem3D Modeler > G rid Plane > XY2. Usethemousetocreatethebaseshape
1. Setthestartpointbypositioningtheactivecursorandclicktheleftmousebutton.
2. Positiontheactivecursorandclicktheleftmousebuttontosetthesecondpointthatformsthebaserectangle
3. SettheHeightbypositioningtheactivecursorandclickingleftmouse
button.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
25/238
1ParametricModelCreation
1-25AnsoftMaxwell3DFieldSimulatorv11UsersGuide
SpecifyingPointsGrid
Fromtheexample,wesawthatthesimplestwaytosetapointis byclickingitspositiononthegridplane.Tosettheprecisionofthegridplane,selectthemenuitemView > Grid Settings. FromhereyoumayspecifytheGridType,Style,Visibility,andPrecision.BypressingtheSave As Defaultbutton,youcansetthedefaultbehaviorforfutureMaxwellDesigns.
Coordinate EntryAnotherwaytospecifyacoordinateistousetheCoordinateEntryfieldswhicharelocatedonthestatusbaroftheAnsoftMaxwellDesktop.ThepositionmaybespecifiedinCartesian, Cylindrical,orSphericalcoordinates.Oncethefirstpointisset,theCoordinateEntrywilldefaultto
Relativecoordinates.InRelativemodethecoordinatesarenolongerabsolute(measuredfromtheoriginoftheworkingcoordinatesystem),butrelativetothelastpointentered.
EquationsTheCoordinateEntryfieldsallowequationstobeenteredforpositionvalues.Examples:2*5,2+6+8,2*cos(10*(pi/180)).
VariablesarenotallowedintheCoordinateEntryField
Note:Trigfunctionsareinradians
Relativemode
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
26/238
1ParametricModelCreation
1-26AnsoftMaxwell3DFieldSimulatorv11UsersGuide
SpecifyingPoints(Continued)Object Properties
BydefaultthePropertiesdialogwillappearafteryouhavefinishedsketchinganobject.Thepositionandsizeofobjectscanbemodifiedfromthedialog.Thismethodallowsyoutocreateobjectsbyclickingtheestimatedvaluesusingthemouseandthencorrectingthevaluesinthefinaldialog.
ThePropertydialogacceptsequations,variables,andunits.Seethe
Overview of Entering Parameters formoredetail.Everyobjecthastwotypesofproperties
1. Command Definesthestructuralprimitive2. Attributes Definesthematerial,display,andsolveproperties
Attributes
Commands
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
27/238
1ParametricModelCreation
1-27AnsoftMaxwell3DFieldSimulatorv11UsersGuide
OverviewofDrawPrimitives
Insolidmodeling,thebasicelementorobjectisoftencalleda primitive.Examplesofprimitivesareboxes,cylinders,rectangles,circles,etc.Therearetwotypesofprimitives:3Dprimitivesorsolids,and2Dprimitivesorsurfaces.Byplacingacollectionofprimitivesinthecorrectlocationandofthecorrectsizewecancreatearepresentcomplexstructuralobjects.
Tocreatecomplexobjects,primitivescanbeusedastools tocutholes,
carveaway,orjoin.TheoperationsthatareperformedwiththesetoolsareoftenreferredtoasBooleanoperations.
2Dprimitivescanbeswepttocreatearbitrarilyshapedsolidprimitives
2D Draw ObjectsThefollowing2DDrawobjectsareavailable:
Rectangle,Circle,Line,Point,Spline,Ellipse,RegularPolygon(v10circle)
3D Draw ObjectsThefollowing3DDrawobjectsareavailable:
Box,Cylinder,Sphere,Torus,Helix,BondWire,Cone,RegularPolyhedron(v10cylinder)
True SurfacesCircles,Cylinders,Spheres,etcarerepresentedastruesurfaces.Inversionspriortorelease11,theseprimitiveswouldberepresentedasfacetedobjects.Ifyouwishtousethefacetedprimitives(Cylindersor
Circles),selecttheRegularPolyhedronorRegularPolygon.Tocontrolthemeshgenerationoftruesurfacesobjects,seethe sectiononMeshControl.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
28/238
1ParametricModelCreation
1-28AnsoftMaxwell3DFieldSimulatorv11UsersGuide
OverviewofDraw(Continued)
Snap ModeAsanaidforgraphicalselection,themodelerprovidesSnapoptions.Thedefaultistosnapsareshownhere.Theshapeoftheactivecursorwilldynamicallychangeasthecursorismovedoverthe
snappositions.
MovingBydefaultallactivecursormovementisinthreedimensions.Themodelercanalsobesettoallowtheactivecursortoonlymoveinaplaneoroutofplane.Thesearesetfromthemenuitem3D Modeler > Movement Mode.Inaddition,themovementcanbelimitedtoaspecificdirection (x,y,orz)byholdingdownthex,y,orzkey.Thispreventsmovementintheother
directions.PressingtheCTRL+Enter keysetsalocalreferencepoint.Thiscanbeusefulforcreatinggeometrygraphicallythatisbasedonanexistingobjects.Thisisoutlinedonthenextpage:
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
29/238
1ParametricModelCreation
1-29AnsoftMaxwell3DFieldSimulatorv11UsersGuide
Moving (Continued)
Step1:StartPoint Step2:HoldXkeyandselectvertexpoint
Step3:CTRL+Enter Keyssetalocalreference Step4:HoldZkeyandsetheight
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
30/238
1ParametricModelCreation
1-30AnsoftMaxwell3DFieldSimulatorv11UsersGuide
OverviewofDrawImport
In3Dmodeleryoucanimportadrawingfilefromoutside.
Chooseoption3D Modeler -> Import .Hereisthelistofimportfilesthatwesupport.Forsomeoftheseimportoptionyouwillneedanadd-ontranslatorfeatureinyourlicensefile.
HealingAutomatedhealingforimportedsolidmodels
Post-translationusercontrolledhealing3DModelAnalysis 3DModeler/Analyze
Face,Object,Areaanalysisbasedonuserinputs
Listofproblems(faces,edges,vertices)
AutoZoomInintoregionwhereproblemexists
RemoveFace
RemoveEdge
RemoveSliver
RemoveVertices
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
31/238
1ParametricModelCreation
1-31AnsoftMaxwell3DFieldSimulatorv11UsersGuide
SelectingPreviouslyDefinedShapesYoumayselectanobjectbymovingthemouseovertheobjectinthegraphicsareaandclickingonit.ThedefaultmodeisDynamicselectionwhichwilldisplaytheobjecttobeselectedwithauniqueoutlinecolor.Pleasenotethatafterselecting(Clickingontheobject)theobjectitwillbedisplayedsolidpinkwhileallotherobjectsaredrawntransparent.
Types of SelectionThedefaultistoselectobjects.Sometimesisnecessarytoselectfaces,
edges,orvertices.Tochangetheselectionmode,selectthemenuitemEdit > Select andchoosetheappropriateselectionmode.Theshortcutkeyso (Objectselection)andf (faceselection)areusefulforquicklyswitchingbetweenthemostcommonselectionmodes
Multiple Select or Toggle SelectionMultipleobjectscanbeselectedgraphicallybyholdingdownthe CTRLkeywhileselecting.Inaddition,withtheCTRLkeypressed,theselectionofanobjectcanbetoggledbetweenselectedorunselected.
Blocked ObjectsIftheobjectyouwishtoselectislocatedbehindanotherobject,selecttheobjectthatisblockingthedesiredobjectandpresstheb keyorright-clickandselectNext Behind fromthecontextmenu.Youmayrepeatthisasmanytimesasneededtoselectthecorrectobject.
Select All VisibleYoucanselectallvisibleobjectsbypressingtheCTRL+a keyorbyselectingthemenuitemEdit > Select All Visible.
Select by NameToselectobjectsbyNameyoucanuseanyoneofthefollowing:
SelectthemenuitemEdit > Select > By NameSelectthemenuitemMaxwell > List
SelecttheModel tabSelectobjectsfromthelist
UsetheModel Tree.Seethenextpage
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
32/238
1ParametricModelCreation
1-32AnsoftMaxwell3DFieldSimulatorv11UsersGuide
SelectingPreviouslyDefinedShapes(Continued)Model Tree
Afteranobjecthasbeencreated,itisautomaticallyaddedtotheModelTree.AllobjectscanbefoundintheModelTree.IfyouopentheModelfolderyouwillfindtheobjectssortedbyObjectorbyMaterial.Youcantogglebetweentheviewsbytogglingthemenuitem3D Modeler > GroupObject by Material.
Asstatedpreviously,everyobjecthastwotypesofproperties:
AttributesYoumayselectanobjectbyclickingonthecorrespondingitemintheModelTree.
WhentheobjectisselectedtheattributeswillbedisplayedinthePropertyWindow.Double-clickingontheobjectwillopenapropertiesdialog.UsethePropertyWindoworpropertiesdialogtomodifytheattributes.
CommandsFromtheModelTree,theCommandPropertiescanbeselectedbyexpandingtheobjectfoldertodisplaythecommandlist.Usingthemouse,selectthecorrespondingcommandfromthetree.ThepropertieswillbedisplayedinthePropertyWindow.Double-clickingonthecommandwillopenapropertiesdialog.UsethePropertyWindoworpropertiesdialogtomodifythecommand.
Whenthecommandisselected,theobjectwillbeoutlinedwithboldlinesinthe3DModelWindow.Sinceanobjectcanbeacombinationofseveralprimitives,thecommandlistmaycontainseveralobjects.Anyoneofthesecommandscanbeselectedtovisualizeormodifytheobject.
Attributes
Commands
SortedbyObject SortedbyMaterial
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
33/238
1ParametricModelCreation
1-33AnsoftMaxwell3DFieldSimulatorv11UsersGuide
SelectingPreviouslyDefinedShapes(Continued)Model Tree
Geometryinthe3Dmodelerisalsogroupedaccordingtotheirmodeldefinition.Objects,Sheets,Lines,andPointsareallseparated sothattheycanbeeasilyidentifiedinthemodeltree
Ifaboundaryconditionoranexcitationisdefinedonasheetobject,thenthose2Dobjectswillbefurtherseparatedaccordingtotheirassignment.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
34/238
1ParametricModelCreation
1-34AnsoftMaxwell3DFieldSimulatorv11UsersGuide
ObjectAttributesAnobjectsattributessetthefollowinguserdefinedproperties:
Name Userdefinedname.Defaultnamesstartwiththeprimitivetypefollowedbyanincreasingnumber:Box1,Box2,etc.
Material Userdefinedmaterialproperty.Thedefaultpropertyisvacuum.Thiscanbechangedbyusingthematerialtoolbar
Solve Inside BydefaultMaxwellonlysolvesforfieldsinsidedielectrics.ToforceMaxwelltosolveinsideconductors,check
solveinside.Orientation
Model Object ControlsiftheobjectisincludedinthesolveDisplay Wireframe ForcestheobjecttoalwaysbedisplayedaswireframeColor SetobjectcolorTransparency Setthetransparencyofanobject.0Solid,1- Wireframe
Note: Visibilityisnotanobjectproperty.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
35/238
1ParametricModelCreation
1-35AnsoftMaxwell3DFieldSimulatorv11UsersGuide
MaterialsByclickingonthepropertybuttonforthematerialname,thematerialdefinitionwindowwillappear.Youcanselectfromtheexistingdatabaseordefineacustomprojectmaterial.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
36/238
1ParametricModelCreation
1-36AnsoftMaxwell3DFieldSimulatorv11UsersGuide
Materials(Continued)User Defined Project Material
TodefineacustommaterialclicktheAdd Material buttonfromthematerialdefinitionwindow.Thefollowingdialogwillappear.Enterthe materialdefinitionsandclicktheOK button.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
37/238
1ParametricModelCreation
1-37AnsoftMaxwell3DFieldSimulatorv11UsersGuide
ChangingtheViewYoucanchangetheviewatanytime(evenduringshapegeneration)byusingthefollowingcommands:
ToolbarRotate Model Center ThestructurewillberotatedaroundtheModelPan ThestructurewillbetranslatedinthegraphicalareaDynamic Zoom Movingthemouseupwardswillincreasethezoomfactorwhilemovingthemousedownwardswilldecreasethezoomfactor
Zoom In/Out Inthismodearubberbandrectanglewillbedefinedbydraggingthemouse.Afterreleasingthemousebuttonthezoomfactorwillbeapplied.
Context MenuRightclickinthegraphicsareaandselectthemenuitemView andchoosefromtheoptionsoutlinedintheToolbarsection.Thecontextmenualsooffersthefollowing:
Fit All Thiswillzoomthedefinedstructuretoapointwhereitfitsinthedrawingarea
Fit Selection Thisfitsonlytheselectedobjectsintothedrawingarea.Spin Dragthemouseandreleasethemousebuttontostarttheobjectspinning.Thespeedofthedraggingpriortoreleasingthemousecontrolsthespeedofthespin.
Animate CreateordisplaytheanimationofparametricgeometryShortcuts
Sincechangingtheviewisafrequentlyusedoperation,someusefulshortcutkeysexist.Presstheappropriatekeysanddragthemousewiththeleftbuttonpressed:
ALT + Drag RotateInaddition,thereare9pre-definedviewanglesthatcanbeselectedbyholdingtheALTkeyanddoubleclickingonthelocationsshownonthenextpage.
Shift + Drag - PanALT + Shift + Drag DynamicZoom
Pan
Rotate DynamicZoom
ZoomIn/Out
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
38/238
1ParametricModelCreation
1-38AnsoftMaxwell3DFieldSimulatorv11UsersGuide
Shortcuts- PredefinedViewsThese9pre-definedviewscanbeseenbyholdingtheALTkeyanddoubleclickingtheleftmousebuttononthelocationsshownbelow.
Top
Bottom
Right
PredefinedViewAngles
Left
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
39/238
1ParametricModelCreation
1-39AnsoftMaxwell3DFieldSimulatorv11UsersGuide
ChangingtheView(Continued)Visibility
Thevisibilityofobjects,Boundaries,Excitations,andFieldReportscanbecontrolledfromthemenuitemView > V isibility
Hide SelectionThevisibilityofselectedobjectscanbesethiddenbyselectingtheobject(s)andchoosingthemenuView > H ide Selection > All Views.
RenderingTochangetherenderingselectthemenuitemView>Render>WireframeorView>Render>SmoothShaded
Coordinate SystemTocontroltheviewofthecoordinatesystem,selectthemenuitem:
Visibility:TogglethemenuitemView > Coordinate System > Hide(Show)
Size:TogglethemenuitemView > Coordinate System > S mall(Large)
Background ColorTosetthebackgroundcolor,selectthemenuitemView > Modify Attributes> Background Color
Addition View SeetingsAdditionalattributesoftheviewsuchastheprojection,orientation,andlightingcanbesetfromthemenuitemView > Modify Attributes
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
40/238
1ParametricModelCreation
1-40AnsoftMaxwell3DFieldSimulatorv11UsersGuide
EnhancementsandNewFeatures
SelectionSelectConnected VerticesSelectConnected FacesSelectConnected EdgesSelectEdge ChainSelectFace ChainSelectUncovered Loops
HealingPurge History makesanobjectappearasanimportedentitysothathealingcanbe
performedonit
RemoveFaces
RemoveEdges
RemoveVertices
AlignFaces
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
41/238
1ParametricModelCreation
1-41AnsoftMaxwell3DFieldSimulatorv11UsersGuide
EnhancementsandNewFeatures
VisibilityHideselectedobjectsinActiveView
HideselectedobjectsinAllViews
ShowselectedobjectsinActiveView
ShowselectedobjectsinAllViews
3D User Interface OptionsWhenthereisaselection
Selectionisalwaysvisible
Settransparencyofselectedobjects
Settransparencyofnon-selectedobjects
DefaultRotationAbout
ScreenCenter
CurrentAxis
ModelCenter
3D Modeler OptionsVisualizehistoryofobjects
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
42/238
1ParametricModelCreation
1-42AnsoftMaxwell3DFieldSimulatorv11UsersGuide
ApplyingStructuralTransformationsSofarwehaveinvestigatedhottomodelsimpleshapesandhowtochangetheviewofthemodel.Tocreatemorecomplicatedmodelsorreducethenumberofobjectsthatneedtobecreatedmanuallywecanapplyvarioustransformations.
Thefollowingexamplesassumethatyouhavealreadyselectedthe object(s)thatyouwishtoapplyatransformation.
YoucanselectthetransformationoptionsfromthemenuitemEdit >Arrange >
Move TranslatesthestructurealongavectorRotate RotatestheshapearoundacoordinateaxisbyanangleMirror MirrorstheshapearoundaspecifiedplaneOffset Performsauniformscaleinx,y,andz.
Duplicate >Along Lines CreatemultiplecopiesofanobjectalongavectorAround Axis Createmultiplecopiesofanobjectrotatedbyafixedanglearoundthex,y,orzaxis
Mirror - Mirrorstheshapearoundaspecifiedplane andcreatesaduplicate
Scale Allowsnon-uniformscalinginthex,y,orzdirectionThefacesofanobjectcanalsobemovedtoaltertheshapeofanexistingobject.Tomovethefacesofanobjectselectthemenuitem3D M odeler > S urfaces >Move Faces andselectAlong Normal orAlong Vector.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
43/238
1ParametricModelCreation
1-43AnsoftMaxwell3DFieldSimulatorv11UsersGuide
CombineObjectsbyUsingBooleanOperationsMostcomplexstructurescanbereducedtocombinationsofsimple primitives.Eventhesolidprimitivescanbereducedtosimple2Dprimitives thataresweptalongavectororaroundanaxis(Box isasquarethatissweptalongavectortogiveitthickness).ThesolidmodelersupportsthefollowingBooleanoperations:
Unite combinemultipleprimitivesUnitedisjointobjects
SeparateBodiestoseparate
Subtract removepartofaprimitivefromanotherSplit breakprimitivesintomultiplepartsIntersect keeponlythepartsofprimitivesthatoverlapSweep turna2Dprimitiveintoasolidbysweeping:AlongaVector,AroundanAxis,AlongaPath
Connect connect 2Dprimitives.UseCoverSurfacestoturntheconnectedobjectintoasolid
Section generate2Dcross-sectionsofa3DobjectMostBooleanoperationsrequireabaseprimitiveinwhichtheBooleanoperation
isperformed.Onlythebaseobjectwillbepreserved.TheBooleanfunctionsprovidetheoptiontoCloneobjects.
Split Crossing Objects Whenagroupofobjectsareselected,aBooleansplitisperformedon
ANYobjectsthatoverlap
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
44/238
1ParametricModelCreation
1-44AnsoftMaxwell3DFieldSimulatorv11UsersGuide
LocalCoordinateSystemsTheabilitytocreatelocalcoordinatesystemsaddsagreatdeal offlexibilitytothecreationsofstructuralobjects.Inprevioussectionswehaveonlydiscussedobjectsthatarealignedtotheglobalcoordinatesystem.Thelocalcoordinatesystemsimplifiesthedefinitionofobjectsthatdonotalignwiththeglobalcoordinatesystem.Inaddition,theobjecthistoryisdefinedrelativetoacoordinatesystem.Ifthecoordinatesystemismoved,thegeometrywillautomaticallymovewithit.Thedefinitionofcoordinatesystemsaremaintained
intheModelTree.
Working Coordinate SystemTheworkingcoordinatesystemisthecurrentlyselectedCS.ThiscanbealocalorglobalCS
Global CSThedefaultfixedcoordinatesystem
Relative CSUserdefinedlocalcoordinatesystem.
Offset
Rotated
Both
Face CSUserdefinedlocalcoordinatesystem.Itistiedtothelocationoftheobjectfaceitwascreatedon.Ifthesizeofthebaseobjectchanges, allobjectscreatedrelativetothefaceCSwillbeupdatedautomatically.
ContinuedonNextPage
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
45/238
1ParametricModelCreation
1-45AnsoftMaxwell3DFieldSimulatorv11UsersGuide
LocalCoordinateSystems(Continued)Face CS (Continued)
TocreateafaceCS,selectthemenuitem3D Modeler > CoordinateSystem > Face
1. GraphicallyselectFace(Highlightedinmodel)
2. SelectOriginforFaceCS
3. SetX-Axis
Step1:SelectFace Step2:SelectOrigin
Step3:SetX-AxisNewWorkingCS
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
46/238
1ParametricModelCreation
1-46AnsoftMaxwell3DFieldSimulatorv11UsersGuide
ConeiscreatedwithFaceCS
ChangethesizeoftheboxandtheConeisautomaticallymovedwiththeFaceCS
LocalCoordinateSystems(Continued)Example of Face CS
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
47/238
1ParametricModelCreation
1-47AnsoftMaxwell3DFieldSimulatorv11UsersGuide
ParametricGeometryTheparametricmodelercapabilityallowsustodefinevariablesinreplaceofafixedpositionorsize.Oncethishasbeendefinedthevariable canbechangedbytheuserorbyOptimetrics.OptimetricscanthenbeusedtoperformautomaticOptimization,ParametricSweeps,Statistical,orSensitivityAnalysis.
Defining ParametersSelectthecommandtoparameterized
Choosethevaluetochange
Enteravariableinreplaceofthefixedvalue
Definethevariableusinganycombinationofmathfunctionsordesignvariables.
Themodelwillautomaticallybeupdated
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
48/238
8/6/2019 Ansoft Maxwell v11 Userguide
49/238
1.1-49
1.1BoundaryConditions
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
BoundaryConditionsThischapterdescribesthebasicsforapplyingboundaryconditions.Boundaryconditionsenableyoutocontrolthecharacteristicsofplanes,faces,orinterfacesbetweenobjects.BoundaryconditionsareimportanttounderstandandarefundamentaltosolutionofMaxwellsequations.
WhytheyareImportant
ThefieldequationsthataresolvedbyAnsoftMaxwell3DarederivedfromthedifferentialformofMaxwellsEquations.Fortheseexpressionstobevalid,itisassumedthatthefieldvectorsaresingle-valued,bounded,andhavecontinuousdistributionalongwiththeirderivatives.Alongboundariesorsources,thefieldsarediscontinuousandthederivativeshavenomeaning.Thereforeboundaryconditionsdefinethefieldbehavioracrossdiscontinuousboundaries.
AsauserofAnsoftMaxwell3Dyoushouldbeawareofthefieldassumptionsmadebyboundaryconditions.Sinceboundaryconditionsforceafieldbehaviorwewanttobeawareoftheassumptionssowecandetermineiftheyareappropriateforthesimulation.Improperuseofboundaryconditionsmayleadto
inconsistentresults.Whenusedproperly,boundaryconditionscanbesuccessfullyutilizedtoreducethemodelcomplexity.Infact,AnsoftMaxwell3Dautomaticallyusesboundaryconditionstoreducethecomplexityofthemodel.AnsoftMaxwell3Dcanbethoughtofasavirtualprototypingworld.Unliketherealworldwhichisboundedbyinfinitespace,thevirtualprototypingworldneedstobemadefinite.Inordertoachievethisfinitespace,AnsoftMaxwell3Dappliesabackgroundorouterboundaryconditionwhichisappliedtotheregionsurroundingthegeometricmodel.
Themodelcomplexityusuallyisdirectlytiedtothesolutiontimeandcomputer
resourcessoitisacompetitiveadvantagetoutilizethemwheneverpossible.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
50/238
1.1-50
1.1BoundaryConditions
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
CommonBoundaryConditionsTherearethreetypesofboundaryconditions.Thefirsttwoare largelytheusersresponsibilitytodefinethemorensurethattheyaredefinedcorrectly.Thematerialboundaryconditionsaretransparenttotheuser.
1. ExcitationsWavePorts(External)
LumpedPorts(Internal)
2. Surface ApproximationsSymmetryPlanes
PerfectElectricorMagneticSurfaces
RadiationSurfaces
BackgroundorOuterSurface
3. Material PropertiesBoundarybetweentwodielectrics
FiniteConductivityofaconductor
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
51/238
1.1-51
1.1BoundaryConditions
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
HowtheBackgroundAffectsaStructureThebackgroundistheregionthatsurroundsthegeometricmodelandfillsanyspacethatisnotoccupiedbyanobject.AnyobjectsurfacethattouchesthebackgroundisautomaticallydefinedtobeaPerfectEboundaryandgiventheboundarynameouter.Youcanthinkofyourstructureasbeingencasedwithathin,perfectconductor.
Ifitisnecessary,youcanchangeasurfacethatisexposedtothebackgroundto
havepropertiesthataredifferentfromouter:Tomodellossesinasurface,youcanredefinethesurfacetobe eitheraFiniteConductivityorImpedanceboundary.AFiniteConductivityboundarycanbealossy metal,withlossasafunctionoffrequencyanddefinedusingconductivityandrelativepermeabilityparameters. AnImpedanceboundaryhasrealorcomplexvaluesthatbydefaultremainconstantoverfrequency.
Tomodelasurfacetoallowwavestoradiateinfinitelyfarinto space,redefinethesurfacetoberadiationboundary.
Thebackgroundcanaffecthowyoumakematerialassignments.Forexample,ifyouaremodelingasimpleair-filledrectangularwaveguide,youcancreateasingleobjectintheshapeofthewaveguideanddefineittohavethecharacteristicsofair.Thesurfaceofthewaveguideisautomaticallyassumedtobeaperfectconductorandgiventheboundaryconditionouter,oryoucanchangeittoalossy conductor.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
52/238
1.1-52
1.1BoundaryConditions
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
BoundaryConditionPrecedenceTheorderinwhichboundariesareassignedisimportantinMaxwell3D.Latterassignedboundariestakeprecedenceoverformerassignedboundaries.
Forexample,ifonefaceofanobjectisassignedtoaNaturalboundary,andaboundaryinthesameplaneasthissurfaceisassignedaTangentialH-Fieldboundary,thentheTangentialH-FieldwilloverridetheNaturalintheareaoftheoverlap.Ifthisoperationwereperformedinthereverseorder,thentheTangentialH-FieldboundarywouldcovertheNaturalboundary.
Onceboundarieshavebeenassigned,theycanbere-prioritizedbyselectingMaxwell > Boundaries > Re-prioritize.Theorderoftheboundariescanbechangedbyclickingonaboundaryanddraggingitfurtherupordowninthelist.NOTE:Excitationswillalwaystakethehighestprecedence.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
53/238
1.1-53
1.1BoundaryConditions
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
TechnicalDefinitionofBoundaryConditionsExcitation Anexcitationisatypeofboundaryconditionthatpermitsenergytoflowintoandoutofastructure.SeethesectiononExcitations.
Perfect E PerfectEisaperfectelectricalconductor,alsoreferredtoasaperfectconductor.Thistypeofboundaryforcestheelectricfield(E-Field)perpendiculartothesurface.TherearealsotwoautomaticPerfectEassignments:
Anyobjectsurfacethattouchesthebackgroundisautomaticallydefinedto
beaPerfectEboundaryandgiventheboundaryconditionnameouter.Anyobjectthatisassignedthematerialpec (PerfectElectricConductor)isautomaticallyassignedtheboundaryconditionPerfectEtoitssurfaceandgiventheboundaryconditionnamesmetal.
Perfect H PerfectHisaperfectmagneticconductor.ForcesE-Fieldtangentialtothesurface.
Natural foraPerfectHboundarythatoverlapswithaperfectEboundary,thisrevertstheselectedareatoitsoriginalmaterial,erasing thePerfectE
boundarycondition.Itdoesnotaffectanymaterialassignments. Itcanbeused,forexample,tomodelacut-outinagroundplaneforacoaxfeed.
Finite ConductivityAFiniteConductivityboundaryenablesyoutodefinethesurfaceofanobjectasalossy (imperfect)conductor.ItisanimperfectEboundarycondition,andisanalogoustothelossy metalmaterialdefinition.Tomodelalossy surface,youprovidelossinSiemens/meterandpermeabilityparameters.Lossiscalculatedasafunctionoffrequency.Itisonlyvalidforgoodconductors.ForcesthetangentialE-FieldequaltoZs(n xHtan).Thesurfaceimpedance(Zs)isequalto,(1+j)/(),where:
istheskindepth,(2/())0.5 oftheconductorbeingmodeled isthefrequencyoftheexcitationwave. istheconductivityoftheconductor
isthepermeabilityoftheconductor
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
54/238
1.1-54
1.1BoundaryConditions
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
TechnicalDefinitionofBoundaryConditions(Continued)Impedance aresistivesurfacethatcalculatesthefieldbehaviorandlossesusinganalyticalformulas.ForcesthetangentialE-FieldequaltoZs(n xHtan).ThesurfaceimpedanceisequaltoRs +jXs,where:
Rs istheresistanceinohms/square
Xsisthereactanceinohms/square
Layered Impedance Multiplethinlayersinastructurecanbemodeledasanimpedancesurface.SeetheOnlineHelpforadditionalinformationonhowtousetheLayeredImpedanceboundary.
Lumped RLC aparallelcombinationoflumpedresistor,inductor,and/orcapacitorsurface.ThesimulationissimilartotheImpedance boundary,butthesoftwarecalculatetheohms/squareusingtheusersuppliedR,L, Cvalues.
Infinite Ground Plane Generally,thegroundplaneistreatedasaninfinite,PerfectE,FiniteConductivity,orImpedanceboundarycondition. Ifradiation
boundariesareusedinastructure,thegroundplaneactsasashieldforfar-fieldenergy,preventingwavesfrompropagatingpastthegroundplane. tosimulatetheeffectofaninfinitegroundplane,checktheInfinitegroundplaneboxwhendefiningaPerfectE,FiniteConductivity,orImpedanceboundary condition.NOTE:EnablingtheInfiniteGroundPlaneapproximationONLYaffectspost-processedfar-fieldradiationpatterns.Itwillnotchangethecurrentflowing onthegroundplane.
Radiation Radiationboundaries,alsoreferredtoasabsorbingboundaries,enableyoutomodelasurfaceaselectricallyopen:wavescanthenradiateoutof
thestructureandtowardtheradiationboundary.Thesystemabsorbsthewaveattheradiationboundary,essentiallyballooningtheboundaryinfinitelyfarawayfromthestructureandintospace.Radiationboundariesmayalsobeplacedrelativelyclosetoastructureandcanbearbitrarilyshaped.Thisconditioneliminatestheneedforasphericalboundary.Forstructuresthatincluderadiationboundaries,calculatedS-parametersincludetheeffectsofradiationloss.Whenaradiationboundaryisincludedinastructure,far-fieldcalculationsareperformedaspartofthesimulation.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
55/238
1.1-55
1.1BoundaryConditions
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
TechnicalDefinitionofBoundaryConditions(Continued)Symmetry - representperfectEorperfectHplanesofsymmetry.Symmetryboundariesenableyoutomodelonlypartofastructure,whichreducesthesizeorcomplexityofyourdesign,therebyshorteningthesolutiontime.Symmetryboundaries,asopposedtoasimplePerfectEorHplane,shouldbeusedwhentheplanecutsacrossaport.Inthisinstance,theporthasadifferentamountofpower,voltage,andcurrentassociatedwithit,andthusadifferentimpedance.Tomakeaportwithasymmetryplanelooklikeafull-sizedport,youmustusethe
ImpedanceMultiplierintheboundarywizard.ForasingleSymmetryHboundary,theImpedanceMultiplieris0.5.
ForasingleSymmetryEboundary,theImpedanceMultiplieris2.
OtherconsiderationsforaSymmetryboundarycondition:
Aplaneofsymmetrymustbeexposedtothebackground.
Aplaneofsymmetrymustnotcutthroughanobjectdrawninthe3DModelerwindow.
Aplaneofsymmetrymustbedefinedonaplanarsurface.
Onlythreeorthogonalsymmetryplanescanbedefinedinaproblem
Master / Slave - MasterandslaveboundariesenableyoutomodelplanesofperiodicitywheretheE-fieldononesurfacematchestheE-fieldonanothertowithinaphasedifference.TheyforcetheE-fieldateachpointontheslaveboundarymatchtheE-fieldtowithinaphasedifferenceateachcorrespondingpointonthemasterboundary.Theyareusefulforsimulatingdevicessuchasinfinitearrays.SomeconsiderationsforMaster/Slaveboundaries:
Theycanonlybeassignedtoplanarsurfaces.
Thegeometryofthesurfaceononeboundarymustmatchthegeometryonthesurfaceoftheotherboundary.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
56/238
1.1-56
1.1BoundaryConditions
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
BoundaryConditionsThischapterdescribesthebasicsforapplyingboundaryconditions.Boundaryconditionsenableyoutocontrolthecharacteristicsofplanes,faces,orinterfacesbetweenobjects.BoundaryconditionsareimportanttounderstandandarefundamentaltosolutionofMaxwellsequations.
WhytheyareImportant
ThefieldequationsthataresolvedbyAnsoftMaxwell3DarederivedfromthedifferentialformofMaxwellsEquations.Fortheseexpressionstobevalid,itisassumedthatthefieldvectorsaresingle-valued,bounded,andhavecontinuousdistributionalongwiththeirderivatives.Alongboundariesorsources,thefieldsarediscontinuousandthederivativeshavenomeaning.Thereforeboundaryconditionsdefinethefieldbehavioracrossdiscontinuousboundaries.
AsauserofAnsoftMaxwell3Dyoushouldbeawareofthefieldassumptionsmadebyboundaryconditions.Sinceboundaryconditionsforceafieldbehaviorwewanttobeawareoftheassumptionssowecandetermineiftheyareappropriateforthesimulation.Improperuseofboundaryconditionsmayleadto
inconsistentresults.Whenusedproperly,boundaryconditionscanbesuccessfullyutilizedtoreducethemodelcomplexity.Infact,AnsoftMaxwell3Dautomaticallyusesboundaryconditionstoreducethecomplexityofthemodel.AnsoftMaxwell3Dcanbethoughtofasavirtualprototypingworld.Unliketherealworldwhichisboundedbyinfinitespace,thevirtualprototypingworldneedstobemadefinite.Inordertoachievethisfinitespace,AnsoftMaxwell3Dappliesabackgroundorouterboundaryconditionwhichisappliedtotheregionsurroundingthegeometricmodel.
Themodelcomplexityusuallyisdirectlytiedtothesolutiontimeandcomputer
resourcessoitisacompetitiveadvantagetoutilizethemwheneverpossible.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
57/238
1.1-57
1.1BoundaryConditions
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
CommonBoundaryConditionsTherearethreetypesofboundaryconditions.Thefirsttwoare largelytheusersresponsibilitytodefinethemorensurethattheyaredefinedcorrectly.Thematerialboundaryconditionsaretransparenttotheuser.
1. ExcitationsWavePorts(External)
LumpedPorts(Internal)
2. Surface ApproximationsSymmetryPlanes
PerfectElectricorMagneticSurfaces
RadiationSurfaces
BackgroundorOuterSurface
3. Material PropertiesBoundarybetweentwodielectrics
FiniteConductivityofaconductor
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
58/238
1.1-58
1.1BoundaryConditions
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
HowtheBackgroundAffectsaStructureThebackgroundistheregionthatsurroundsthegeometricmodelandfillsanyspacethatisnotoccupiedbyanobject.AnyobjectsurfacethattouchesthebackgroundisautomaticallydefinedtobeaPerfectEboundaryandgiventheboundarynameouter.Youcanthinkofyourstructureasbeingencasedwithathin,perfectconductor.
Ifitisnecessary,youcanchangeasurfacethatisexposedtothebackgroundto
havepropertiesthataredifferentfromouter:Tomodellossesinasurface,youcanredefinethesurfacetobe eitheraFiniteConductivityorImpedanceboundary.AFiniteConductivityboundarycanbealossy metal,withlossasafunctionoffrequencyanddefinedusingconductivityandrelativepermeabilityparameters. AnImpedanceboundaryhasrealorcomplexvaluesthatbydefaultremainconstantoverfrequency.
Tomodelasurfacetoallowwavestoradiateinfinitelyfarinto space,redefinethesurfacetoberadiationboundary.
Thebackgroundcanaffecthowyoumakematerialassignments.Forexample,ifyouaremodelingasimpleair-filledrectangularwaveguide,youcancreateasingleobjectintheshapeofthewaveguideanddefineittohavethecharacteristicsofair.Thesurfaceofthewaveguideisautomaticallyassumedtobeaperfectconductorandgiventheboundaryconditionouter,oryoucanchangeittoalossy conductor.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
59/238
8/6/2019 Ansoft Maxwell v11 Userguide
60/238
1.1-60
1.1BoundaryConditions
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
TechnicalDefinitionofBoundaryConditionsExcitation Anexcitationisatypeofboundaryconditionthatpermitsenergytoflowintoandoutofastructure.SeethesectiononExcitations.
Perfect E PerfectEisaperfectelectricalconductor,alsoreferredtoasaperfectconductor.Thistypeofboundaryforcestheelectricfield(E-Field)perpendiculartothesurface.TherearealsotwoautomaticPerfectEassignments:
Anyobjectsurfacethattouchesthebackgroundisautomaticallydefinedto
beaPerfectEboundaryandgiventheboundaryconditionnameouter.Anyobjectthatisassignedthematerialpec (PerfectElectricConductor)isautomaticallyassignedtheboundaryconditionPerfectEtoitssurfaceandgiventheboundaryconditionnamesmetal.
Perfect H PerfectHisaperfectmagneticconductor.ForcesE-Fieldtangentialtothesurface.
Natural foraPerfectHboundarythatoverlapswithaperfectEboundary,thisrevertstheselectedareatoitsoriginalmaterial,erasing thePerfectE
boundarycondition.Itdoesnotaffectanymaterialassignments. Itcanbeused,forexample,tomodelacut-outinagroundplaneforacoaxfeed.
Finite ConductivityAFiniteConductivityboundaryenablesyoutodefinethesurfaceofanobjectasalossy (imperfect)conductor.ItisanimperfectEboundarycondition,andisanalogoustothelossy metalmaterialdefinition.Tomodelalossy surface,youprovidelossinSiemens/meterandpermeabilityparameters.Lossiscalculatedasafunctionoffrequency.Itisonlyvalidforgoodconductors.ForcesthetangentialE-FieldequaltoZs(n xHtan).Thesurfaceimpedance(Zs)isequalto,(1+j)/(),where:
istheskindepth,(2/())0.5 oftheconductorbeingmodeled isthefrequencyoftheexcitationwave. istheconductivityoftheconductor
isthepermeabilityoftheconductor
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
61/238
1.1-61
1.1BoundaryConditions
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
TechnicalDefinitionofBoundaryConditions(Continued)Impedance aresistivesurfacethatcalculatesthefieldbehaviorandlossesusinganalyticalformulas.ForcesthetangentialE-FieldequaltoZs(n xHtan).ThesurfaceimpedanceisequaltoRs +jXs,where:
Rs istheresistanceinohms/square
Xsisthereactanceinohms/square
Layered Impedance Multiplethinlayersinastructurecanbemodeledasanimpedancesurface.SeetheOnlineHelpforadditionalinformationonhowtousetheLayeredImpedanceboundary.
Lumped RLC aparallelcombinationoflumpedresistor,inductor,and/orcapacitorsurface.ThesimulationissimilartotheImpedance boundary,butthesoftwarecalculatetheohms/squareusingtheusersuppliedR,L, Cvalues.
Infinite Ground Plane Generally,thegroundplaneistreatedasaninfinite,PerfectE,FiniteConductivity,orImpedanceboundarycondition. Ifradiation
boundariesareusedinastructure,thegroundplaneactsasashieldforfar-fieldenergy,preventingwavesfrompropagatingpastthegroundplane. tosimulatetheeffectofaninfinitegroundplane,checktheInfinitegroundplaneboxwhendefiningaPerfectE,FiniteConductivity,orImpedanceboundary condition.NOTE:EnablingtheInfiniteGroundPlaneapproximationONLYaffectspost-processedfar-fieldradiationpatterns.Itwillnotchangethecurrentflowing onthegroundplane.
Radiation Radiationboundaries,alsoreferredtoasabsorbingboundaries,enableyoutomodelasurfaceaselectricallyopen:wavescanthenradiateoutof
thestructureandtowardtheradiationboundary.Thesystemabsorbsthewaveattheradiationboundary,essentiallyballooningtheboundaryinfinitelyfarawayfromthestructureandintospace.Radiationboundariesmayalsobeplacedrelativelyclosetoastructureandcanbearbitrarilyshaped.Thisconditioneliminatestheneedforasphericalboundary.Forstructuresthatincluderadiationboundaries,calculatedS-parametersincludetheeffectsofradiationloss.Whenaradiationboundaryisincludedinastructure,far-fieldcalculationsareperformedaspartofthesimulation.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
62/238
1.1-62
1.1BoundaryConditions
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
TechnicalDefinitionofBoundaryConditions(Continued)Symmetry - representperfectEorperfectHplanesofsymmetry.Symmetryboundariesenableyoutomodelonlypartofastructure,whichreducesthesizeorcomplexityofyourdesign,therebyshorteningthesolutiontime.Symmetryboundaries,asopposedtoasimplePerfectEorHplane,shouldbeusedwhentheplanecutsacrossaport.Inthisinstance,theporthasadifferentamountofpower,voltage,andcurrentassociatedwithit,andthusadifferentimpedance.Tomakeaportwithasymmetryplanelooklikeafull-sizedport,youmustusethe
ImpedanceMultiplierintheboundarywizard.ForasingleSymmetryHboundary,theImpedanceMultiplieris0.5.
ForasingleSymmetryEboundary,theImpedanceMultiplieris2.
OtherconsiderationsforaSymmetryboundarycondition:
Aplaneofsymmetrymustbeexposedtothebackground.
Aplaneofsymmetrymustnotcutthroughanobjectdrawninthe3DModelerwindow.
Aplaneofsymmetrymustbedefinedonaplanarsurface.
Onlythreeorthogonalsymmetryplanescanbedefinedinaproblem
Master / Slave - MasterandslaveboundariesenableyoutomodelplanesofperiodicitywheretheE-fieldononesurfacematchestheE-fieldonanothertowithinaphasedifference.TheyforcetheE-fieldateachpointontheslaveboundarymatchtheE-fieldtowithinaphasedifferenceateachcorrespondingpointonthemasterboundary.Theyareusefulforsimulatingdevicessuchasinfinitearrays.SomeconsiderationsforMaster/Slaveboundaries:
Theycanonlybeassignedtoplanarsurfaces.
Thegeometryofthesurfaceononeboundarymustmatchthegeometryonthesurfaceoftheotherboundary.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
63/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
Examples- Contents
Chapter5.0 MagnetostaticExamples5.1 MagneticForce
5.2 NonlinearInductor
5.3 SwitchedReluctanceMotor(StrandedConductors)
5.4 EquivalentCircuitExtraction(ECE)LinearMovement
5.5 AnisotropicMaterials
Chapter6.0 EddyCurrentExamples6.1 AsymmetricalConductorwithaHole
Chapter7.0 Transient Examples7.1 SwitchedReluctanceMotor(StrandedConductors)
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
64/238
5AnsoftMaxwell3DFieldSimulatorv11UsersGuide
Chapter5.0
Chapter5.0 MagnetostaticExamples5.1 MagneticForce
5.2 NonlinearInductor
5.3 SwitchedReluctanceMotor(StrandedConductors)
5.4 EquivalentCircuitExtraction(ECE)LinearMovement
5.5 AnisotropicMaterials
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
65/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
5.1Example(Magnetostatic) MagneticForce
5.1-65
MagneticForceThisexampleisintendedtoshowyouhowtocreateandanalyzeamagnetostaticproblemwithapermanentmagnettodeterminetheforceexertedonasteelbarusingtheMagnetostaticsolverintheAnsoftMaxwell3DDesignEnvironment.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
66/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
5.1Example(Magnetostatic) MagneticForce
5.1-66
AnsoftMaxwellDesignEnvironmentThefollowingfeaturesoftheAnsoftMaxwellDesignEnvironmentareusedtocreatethemodelscoveredinthistopic
3DSolidModeling
Primitives: BoxSurfaceOperations:SectionBooleanOperations:Subtract, Unite, Separate Bodies
Boundaries/ExcitationsCurrent:StrandedAnalysis
MagnetostaticResults
ForceFieldOverlays:
Vector B
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
67/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
5.1Example(Magnetostatic) MagneticForce
5.1-67
GettingStarted
LaunchingMaxwell1. ToaccessMaxwell,clicktheMicrosoftStart button,selectPrograms,andselectAnsoft andthenMaxwell 11.SettingToolOptions
To set the tool options:Note: Inordertofollowthestepsoutlinedinthisexample,verifythatthefollowingtooloptionsareset :
1. SelectthemenuitemTools > Options > Maxwell Options2. MaxwellOptionsWindow:
1. ClicktheGeneral Options tabUseWizardsfordataentrywhencreatingnewboundaries: CheckedDuplicateboundarieswithgeometry : Checked
2. ClicktheOK button3. SelectthemenuitemTools > Options > 3D M odeler Options.4. 3DModelerOptionsWindow:
1. ClicktheOperation tabAutomaticallycoverclosedpolylines: Checked
2. ClicktheDrawing tabEditpropertyofnewprimitives: Checked
3. ClicktheOK button
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
68/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
5.1Example(Magnetostatic) MagneticForce
5.1-68
Opening a New ProjectTo open a new project:
InanAnsoftMaxwellwindow,clickthe OntheStandardtoolbar,orselectthemenuitemFile > New.FromtheProject menu,selectInsert Maxwell Design.
Set Solution TypeTo set the solution type:
SelectthemenuitemMaxwell > Solution TypeSolutionTypeWindow:
ChooseMagnetostaticClicktheOK button
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
69/238
8/6/2019 Ansoft Maxwell v11 Userguide
70/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
5.1Example(Magnetostatic) MagneticForce
5.1-70
Create CoreTo create a box:
1. SelectthemenuitemDraw > Box2. Usingthecoordinateentryfields,entertheboxposition
X:0.0,Y:0.0,Z:-5.0,PresstheEnter key3. Usingthecoordinateentryfields,entertheoppositecornerofthebox:
dX:10.0,dY:-30.0,dZ:10.0,PresstheEnter keyTo fit the view:
1. SelectthemenuitemView > Fit All > Active View.Duplicate Box:
1. SelectthemenuitemEdit > Duplicate Along Line2. Usingthecoordinateentryfields,enterthefirstpoint
X:0.0,Y:0.0,Z:0.0,PresstheEnter key3. Usingthecoordinateentryfields,enterthesecondpoint
dX:30.0,dY:0.0,dZ:10.0,PresstheEnter key4. DuplicateAlongLineWindow
1. TotalNumber:22. ClicktheOK button
To create the core:1. SelectthemenuitemDraw > Box2. Usingthecoordinateentryfields,entertheboxposition
X:0.0,Y:-30.0,Z:-5.0,PresstheEnter key3. Usingthecoordinateentryfields,entertheoppositecornerofthebox:
dX:50.0,dY:-10.0,dZ:10.0,PresstheEnter keyTo set the name:
1. SelecttheAttribute tabfromtheProperties window.2. FortheValue ofName type:Core3. ClicktheOK button
To fit the view:1. SelectthemenuitemView > Fit All > Active View.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
71/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
5.1Example(Magnetostatic) MagneticForce
5.1-71
Group the CoreTo select the objects
1. SelectthemenuitemEdit > Select All2. Selectthemenuitem,3D Modeler > Boolean > Unite
To fit the view:1. SelectthemenuitemView > Fit All > Active View.
Duplicate the CoreTo select the objects
1. Selectthemenuitem,Edit > Duplicate Mirror2. Usingthecoordinateentryfields,enterthefirstpoint
X:0.0,Y:0.0,Z:0.0,PresstheEnter key3. Usingthecoordinateentryfields,enterthenormalpoint
dX:0.0,dY:1.0,dZ:0.0,PresstheEnter keyTo fit the view:
1. SelectthemenuitemView > Fit All > Active View.Group the Core
To select the objects1. SelectthemenuitemEdit > Select All2. Selectthemenuitem,3D Modeler > Boolean > Unite
To fit the view:1. SelectthemenuitemView > Fit All > Active View.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
72/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
5.1Example(Magnetostatic) MagneticForce
5.1-72
Create BarTo create the bar:
1. SelectthemenuitemDraw > Box2. Usingthecoordinateentryfields,entertheboxposition
X:51.0,Y:-40.0,Z:-5.0,PresstheEnter key3. Usingthecoordinateentryfields,entertheoppositecornerofthebox:
dX:10.0,dY:80.0,dZ:10.0,PresstheEnter keyTo parameterize the object:
1. SelecttheCommand tabfromtheProperties window2. ForPosition,type:50mm+mx, -40,0, -5,0,ClicktheTab keytoaccept
AddVariablemx:1mm,ClicktheOK buttonTo set the name:
1. SelecttheAttribute tabfromtheProperties window.2. FortheValue ofName type:Bar3. ClicktheOK button
To fit the view:1. SelectthemenuitemView > Fit All > Active View.
Set Default Material1. Usingthe3DModelerMaterialstoolbar,chooseSelect2. SelectDefinitionWindow:
1. Typecopper intheSearch by Name field2. ClicktheOK button
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
73/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
5.1Example(Magnetostatic) MagneticForce
5.1-73
Create CoilTo create the coil:
1. SelectthemenuitemDraw > Box2. Usingthecoordinateentryfields,entertheboxposition
X:45.0,Y:30.0,Z:10.0,PresstheEnter key3. Usingthecoordinateentryfields,entertheoppositecornerofthebox:
dX:-20.0,dY:-60.0,dZ:-20.0,PresstheEnter keyTo set the name:
1. SelecttheAttribute tabfromtheProperties window.2. FortheValue ofName type:coil3. ClicktheOK button
To select the object for subtract1. SelectthemenuitemEdit > Select > By Name2. SelectObjectDialog,
1. Selecttheobjectsnamed:Coil, Core2. ClicktheOK button
To complete the coil:1. Selectthemenuitem3D Modeler > Boolean > Subtract2. SubtractWindow
1. BlankParts:Coil2. ToolParts:Core3. Clonetoolobjectsbeforesubtracting: Checked4. ClicktheOK button
To fit the view:1. SelectthemenuitemView > Fit All > Active View.
Insulate CoilTo assign a boundary
1. SelectthemenuitemMaxwell > Boundaries > Assign > Insulating2. InsulatingBoundary
1. Name:Insulating12. ClicktheOK button
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
74/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
5.1Example(Magnetostatic) MagneticForce
5.1-74
Create ExcitationSection Object
1. SelectthemenuitemEdit > Surface > Section1. SectionPlane:XY2. ClicktheOK button
Separate Bodies1. SelectthemenuitemEdit > Boolean > Separate Bodies
AssignExcitation1. SelectthemenuitemMaxwell > Excitations > Assign > Current2. CurrentExcitation:General
1. Name:Current12. Value:c13. Type:Stranded4. CurrentDirection:positive Z direction.(UseSwap Direction button)
3. ClicktheOK button4. AddVariableWindow
1. Value:100A2. ClicktheOK button
Calculate ForceTo select the object
SelectthemenuitemEdit > Select > By NameSelectObjectDialog,
Selecttheobjectsnamed:BarClicktheOK button
Calculate ForceSelectthemenuitemMaxwell > Parameters > Assign > ForceClicktheOK button
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
75/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
5.1Example(Magnetostatic) MagneticForce
5.1-75
Set Default Material1. Usingthe3DModelerMaterialstoolbar,chooseSelect2. SelectDefinitionWindow:
1. TypeNdFe35 intheSearch by Name field2. ClicktheOK button
Create MagnetTo create the magnet:
1. SelectthemenuitemDraw > Box2. Usingthecoordinateentryfields,entertheboxposition
X:0.0,Y:-10.0,Z:-5.0,PresstheEnter key3. Usingthecoordinateentryfields,entertheoppositecornerofthebox:
dX:10.0,dY:20.0,dZ:10.0,PresstheEnter keyTo set the name:
1. SelecttheAttribute tabfromtheProperties window.2. FortheValue ofName type:Magnet3. ClicktheOK buttonTo select the object for subtract1. SelectthemenuitemEdit > Select > By Name2. SelectObjectDialog,
1. Selecttheobjectsnamed:Magnet, Core2. ClicktheOK button
To complete the magnet:1. Selectthemenuitem3D Modeler > Boolean > Subtract2. SubtractWindow
1. BlankParts:Core2. ToolParts:Magnet3. Clonetoolobjectsbeforesubtracting: Checked4. ClicktheOK button
To fit the view:1. SelectthemenuitemView > Fit All > Active View.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
76/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
5.1Example(Magnetostatic) MagneticForce
5.1-76
Orient MagnetNote: Bydefaultallofthemagentic materialinthemateriallibaray areorientedinthex-direction.Usingalocalcoordinatesystem(CS)wecancorrecttheorientationofthegeometrytoalignwiththematerialdefinition.
To create rotated CS:1. SelectthemenuitemEdit > Select > Faces2. Usingthemouse,graphicallyselectthetopfaceoftheMagnet
3. Selectthemenuitem3DModeler>CoordinateSystem>Create>FaceCS
4. Usingthecoordinateentryfields,entertheorigin
X:10.0,Y:10.0,Z:5.0,PresstheEnter key5. Usingthecoordinateentryfields,entertheaxis:
dX:0.0,dY:-20.0,dZ:0.0,PresstheEnter keyChange Properties
1. SelectthemenuitemMaxwell > List2. DesignListWindow
1. Fromthelist,selectrow:Magnet2. ClicktheProperties button3. PropertiesWindow
1. Orientation:FaceCS12. ClicktheOK button
4. ClicktheDone button
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
77/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
5.1Example(Magnetostatic) MagneticForce
5.1-77
Set Default MaterialTo set the default material:
1. Usingthe3DModelerMaterialstoolbar,choosevacuumDefine a Region
To define a Region:1. SelectthemenuitemDraw > Region
1. PaddingDate: One2. PaddingPercentage: 503. ClicktheOK button
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
78/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
5.1Example(Magnetostatic) MagneticForce
5.1-78
AnalysisSetup
Creating an Analysis SetupTo create an analysis setup:
1. SelectthemenuitemMaxwell > Analysis Setup > Add Solution Setup2. SolutionSetupWindow:
1. ClicktheOK buttonSave Project
To save the project:1. InanAnsoftMaxwellwindow,selectthemenuitemFile > Save As.2. FromtheSave As window,typetheFilename:maxwell_ms_magforce3. ClicktheSave button
Analyze
Model ValidationTo validate the model:
1. SelectthemenuitemMaxwell > Validation Check2. ClicktheClose button
Note: Toviewanyerrorsorwarningmessages,usetheMessageManager.
AnalyzeTo start the solution process:1. SelectthemenuitemMaxwell > Analyze All
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
79/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
5.1Example(Magnetostatic) MagneticForce
5.1-79
Solution DataTo view the Solution Data:
1. SelectthemenuitemMaxwell > Results > Solution DataTo view the Profile:
1. ClicktheProfile Tab.To view the Convergence:
1. ClicktheConvergence TabNote: ThedefaultviewisforconvergenceisTable.SelectthePlot radiobuttontoviewagraphicalrepresentationsoftheconvergencedata.
ToviewtheSolutions:
1. ClicktheSolutions Tab2. ClicktheClose button
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
80/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
5.1Example(Magnetostatic) MagneticForce
5.1-80
OptimetricsSetup ParametricSweepDuringthedesignofadevice,itiscommonpracticetodevelopdesigntrendsbasedonsweptparameters.AnsoftMaxwell3DwithOptimetricsParametricSweepcanautomaticallycreatethesedesigncurves.
Add a Parametric Sweep1. SelectthemenuitemMaxwell > Optimetrics Analysis > Add Param etric2. SetupSweep Analysis Window:
1. ClicktheSweep Definitions tab:1. ClicktheAdd button2. Add/EditSweepDialog
1. SelectVariable:c12. SelectLinear Count3. Start:0A4. Stop:500A5. Step:1006. ClicktheAdd button7. ClicktheOK button
2. ClicktheOptions tab:1. SaveFieldsandMesh: Checked
3. ClicktheOK buttonAnalyze Parametric Sweep
To start the solution process:1. ExpandtheProjectTreetodisplaytheitemslistedunderOptimetrics2. Right-clickthemouseonParametricSetup1 andchooseAnalyze
Optimetrics ResultsTo view the Optimetrics Results:
1. SelectthemenuitemMaxwell> Optimetrics Analysis > Optimetrics Results2. SelecttheProfile Tabtoviewthesolutionprogressforeachsetup.3. ClicktheClose buttonwhenyouarefinishedviewingtheresults
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
81/238
AnsoftMaxwell3DFieldSimulatorv11UsersGuide
5.1Example(Magnetostatic) MagneticForce
5.1-81
Create Plot of Force at each CurrentTo create a report:
1. SelectthemenuitemMaxwell > Results > Create Report2. CreateReportWindow :
1. ReportType:Magnetostatic2. DisplayType:Rectangular Plot3. ClicktheOK button
3. TracesWindow:1. Solution:Setup1: Force2. ClicktheSweeps tab
1. SelectSweep Design and Project variable values2. Makesurethatc1 isselectedastheprimarysweep
3. ClicktheY tab1. Category: Force2. Quantity:Force_x3. Function:4. ClicktheAdd Trace button
4. ClicktheDone button
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
82/238
5.2Example(Magnetostatic) NonlinearInductor
5.2-82AnsoftMaxwell3DFieldSimulatorv11UsersGuide
TheimplementationandapplicationofNonlinearInductorwhenusingtheMagnetostaticSolver
ThenonlinearinductanceiscalculatedbyMaxwell.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
83/238
5.2Example(Magnetostatic) NonlinearInductor
5.2-83AnsoftMaxwell3DFieldSimulatorv11UsersGuide
AnsoftMaxwellDesignEnvironmentThefollowingfeaturesoftheAnsoftMaxwellDesignEnvironmentareusedtocreatethemodelscoveredinthistopic
3DSolidModeling
Primitives: Rectangular BoxSurfaceOperations:Draw RectangleBooleanOperations:Subtract
Boundaries/ExcitationsCurrent: StrandedAnalysis
MagnetostaticResults
Inductance MatrixFieldOverlays:
Flux Density Mapping
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
84/238
5.2Example(Magnetostatic) NonlinearInductor
5.2-84AnsoftMaxwell3DFieldSimulatorv11UsersGuide
GettingStarted
Launching Maxwell1. ToaccessMaxwell,clicktheMicrosoftStart button,selectPrograms,andselectAnsoft andthenMaxwell 11.
Setting Tool OptionsTo set the tool options:Note: Inordertofollowthestepsoutlinedinthisexample,verifythatthe
followingtooloptionsareset :1. SelectthemenuitemTools > Options > Maxwell Options2. MaxwellOptionsWindow:
1. ClicktheGeneral Options tabUseWizardsfordataentrywhencreatingnewboundaries: CheckedDuplicateboundarieswithgeometry : Checked
2. ClicktheOK button3. SelectthemenuitemTools > Options > 3D M odeler Options.4. 3DModelerOptionsWindow:
1. ClicktheOperation tabAutomaticallycoverclosedpolylines: Checked
2. ClicktheDrawing tabEditpropertyofnewprimitives: Checked
3. ClicktheOK button
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
85/238
8/6/2019 Ansoft Maxwell v11 Userguide
86/238
5.2Example(Magnetostatic) NonlinearInductor
5.2-86AnsoftMaxwell3DFieldSimulatorv11UsersGuide
CreatetheCore:Box is used to create the core:
Draw > Box1. Usingthecoordinateentryfield,enterthecornerofthebox
X: 0, Y: 0, Z: 0,PresstheEnter key2. Usingthecoordinateentryfield,enterthesizeofthebox
dX: 10, dY: 10, dZ: 10,PresstheEnter keyOKThenameofboxisbox1
Draw > Box1. Usingthecoordinateentryfield,enterthecornerofthebox
X: 0, Y: 1, Z: 1,PresstheEnter key2. Usingthecoordinateentryfield,enterthesizeofthebox
dX: 10, dY: 3, dZ: 8,PresstheEnter keyOK
Thenameofboxisbox2
Draw > Box1. Usingthecoordinateentryfield,enterthecornerofthebox
X: 0, Y: 6, Z: 1,PresstheEnter key2. Usingthecoordinateentryfield,enterthesizeofthebox
dX: 10, dY: 3, dZ: 8,PresstheEnter keyOK
Thenameofboxisbox3
Hold Ctrl key and Select: Box1, Box2, Box33D Modeler>Boolean>SubtractOKTheobjectnameisBox1sinceBox1wasselectedfirst.
ClickonthejustcreatedobjectinthedrawingwindowandinthepanelontheleftchangeitsnamefromBox1 toCore.ChangetheMaterialfromvacuum toSteel_1010.ChangetheColorfromGray toBlue
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
87/238
8/6/2019 Ansoft Maxwell v11 Userguide
88/238
5.2Example(Magnetostatic) NonlinearInductor
5.2-88AnsoftMaxwell3DFieldSimulatorv11UsersGuide
CreatetheCoilsandTerminals:Select : CoilBottom, TerminalBottomEdit>Duplicate>Along Line
1. Usingthecoordinateentryfield,enterthefirstpointofduplicatevector.
X: 0, Y: 0, Z: 0,PresstheEnter key2. Usingthecoordinateentryfield,enterthesecondpointofduplicatevector.
dX: 0, dY: 0, dZ: 5,PresstheEnter keyOKClickonthejustcreatedobjectinthedrawingwindowandinthepanelontheleftchangeitsnamefromTerminalBottom_1 toTerminalTop .ClickonthejustcreatedobjectinthedrawingwindowandinthepanelontheleftchangeitsnamefromCoilBottom_1 toCoilTop.
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
89/238
5.2Example(Magnetostatic) NonlinearInductor
5.2-89AnsoftMaxwell3DFieldSimulatorv11UsersGuide
CreatetheproblemRegionOneofthemaindifferencesbetweenMaxwellV10andV11isthataBackgroundRegionisnotautomaticallycreatedwhenaprojectisstarted.Aseparateobjectneedstobespecificallycreated.
CreatearectangularregionthathasthesameshapeastheNonlinearInductorbyselectingthemenuitemDraw > Region
PaddingPercentage: 200OkOk
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
90/238
5.2Example(Magnetostatic) NonlinearInductor
5.2-90AnsoftMaxwell3DFieldSimulatorv11UsersGuide
Assign Current Source to the TerminalsSelectTerminalBottom.SelectthemenuitemMaxwell > Excitations > Assign > Current
1. ChangetheNametoCurrentBottom2. Changethevalueto100 Amps3. ChangethetypetoStranded4. Ok
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
91/238
5.2Example(Magnetostatic) NonlinearInductor
5.2-91AnsoftMaxwell3DFieldSimulatorv11UsersGuide
Assign Current Source to the TerminalsSelectTerminalTop.SelectthemenuitemMaxwell > Excitations > Assign > Current
1. ChangetheNametoCurrentTop2. Changethevalueto100 Amps3. ChangethetypetoStranded4. Ok
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
92/238
5.2Example(Magnetostatic) NonlinearInductor
5.2-92AnsoftMaxwell3DFieldSimulatorv11UsersGuide
Add Inductance Matrix CalculationOntheProjectWindow,RightClickParameters.Assign > Matrix
1. CheckCurrentTop and CurrentBottom
www.cadfamily.com EMail:[email protected]
The document is for study only,if tort to your rights,please inform us,we will delete
http://www.cadfamily.com/8/6/2019 Ansoft Maxwell v11 Userguide
93/238
8/6/2019 Ansoft Maxwell v11 Userguide
94/238
5.2Example(Magnetostatic) NonlinearInductor
5.2-94AnsoftMaxwell3DFieldSimulatorv11UsersGuide
SavetheProjectSelectthemenuitem