Doc5 nastran Analysis Application

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Patran 2012.2

Reference ManualPart 5: Analysis Application


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This documentation, as well as the software described in it, is furnished under license and may be used only in accordance withthe terms of such license.

MSC Software Corporation reserves the right to make changes in specifications and other information contained in this document

without prior notice.

The concepts, methods, and examples presented in this text are for illustrative and educational purposes only, and are not

intended to be exhaustive or to apply to any particular engineering problem or design. MSC Software Corporation assumes no

liability or responsibility to any person or company for direct or indirect damages resulting from the use of any information

contained herein.

User Documentation: Copyright 2012 MSC Software Corporation. Printed in U.S.A. All Rights Reserved.

This notice shall be marked on any reproduction of this documentation, in whole or in part. Any reproduction or distribution of this

document, in whole or in part, without the prior written consent of MSC Software Corporation is prohibited.

The software described herein may contain certain third-party software that is protected by copyright and licensed from MSC

Software suppliers. Contains IBM XL Fortran for AIX V8.1, Runtime Modules, (c) Copyright IBM Corporation 1990-2002, All

Rights Reserved.

MSC, MSC Nastran, MD Nastran, MSC Fatigue, Marc, Patran, Dytran, and Laminate Modeler are trademarks or registered

trademarks of MSC Software Corporation in the United States and/or other countries.

NASTRAN is a registered trademark of NASA. PAM-CRASH is a trademark or registered trademark of ESI Group. SAMCEF is

a trademark or registered trademark of Samtech SA. LS-DYNA is a trademark or registered trademark of Livermore SoftwareTechnology Corporation. ANSYS is a registered trademark of SAS IP, Inc., a wholly owned subsidiary of ANSYS Inc. ACIS is a

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Company. All other brand names, product names or trademarks belong to their respective owners. METIS is copyrighted by the

regents of the University of Minnesota. A copy of the METIS product documentation is included with this installation. Please see

"A Fast and High Quality Multilevel Scheme for Partitioning Irregular Graphs". George Karypis and Vipin Kumar. SIAM Journal

on Scientific Computing, Vol. 20, No. 1, pp. 359-392, 1999.

P3:V2012.2:Z:ANN-APP:Z:DC-REF-PDF

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C o n t e n t s

Patran Reference Manual

1 Introduction to Analysis

Application Modules 2

Application Interfaces 3

User-Added Code 4

Relation to Preferences and Functional Assignments 5

Key Features 6

2 Analysis FormsThe Analysis Form 8

Analyze - Setting Up a File for Analysis 9

Read Results 13

Select File 15

INDEX


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Patran Reference Manual

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2

Application ModulesApplication Modules are a suite of analysis simulation products developed and marketed by MSC

Software Corporation. These products include the following:

Patran Analysis Manager provides analysis management such as basic submittal, monitoring, and

aborting capabilities, as well as automated housekeeping tasks for analysis codes supported by Patran,

and operates in a heterogeneous networking environment.

MSC Fatigue provides advanced fatigue life estimation capabilities for use with finite element analysis

results.

Patran Thermal provides capabilities for the solution of advanced thermal problems involving

conduction, convection, radiation, and advection.

Patran Materials can now access non-linear material properties.

MSC Laminate Modeler is a Patran module for aiding the design, analysis and manufacture of laminated

composite structures.

Contact your sales representative for information about the availability and capabilities of these products.


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3

ApplicationInterfacesPatran is an open system which allows analysis solvers not provided by MSC to be developed and

accessed. Application Preferences are MSC supplied interfaces to some of the more popular analysis

codes. These interfaces convert the data in the Patran database into the required analysis code input

decks. After the analysis code is run, the Application Preference also provides a method to convert the

analysis code results file into a Patran results database. These interfaces include:

Patran ABAQUS Preference Guide

Patran ANSYS Preference Guide

Patran LS-DYNA3D Preference Guide MSC Marc Preference Guide

Dytran Preference Guide

Patran MSC Nastran Preference Guide, Volumes 1-2

Patran PAMCRASH Preference Guide

Patran SAMCEF Preference Guide

PATRAN 2 Neutral File Preference Guide


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4

User-Added CodePatran provides an open architecture to allow users or third-party developers to integrate analysis codes

into the Patran system. Tools are provided to define the analysis code-specific material property, element

property, MPC definition, and analysis parameter forms presented by the Patran system. Tools and

libraries are also provided to access the Patran database to extend the data required to produce an input

deck and to translate results from analysis code-specific results files. For more information, see Steps to

Adding a New Functionality to Patran (p. 3) in thePCL and Customization.
http://../customization/custom_topics.pdfhttp://../customization/custom_topics.pdfhttp://../customization/custom_topics.pdfhttp://../customization/custom_topics.pdfhttp://../customization/custom_topics.pdfhttp://../customization/custom_topics.pdf


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5

Relation to Preferences and Functional AssignmentsThe various MSC supplied Application Modules and Application Preferences, as well as user-added

code, are listed in the Analysis Preferences menu. An analysis code and an analysis type are specified by

the user. For example, the analysis code might be for MSC Nastran and the analysis type

STRUCTURAL. The selection can be changed any time during model creation. However, there may be

conflicts in the data if the analysis code preference is changed after properties are assigned.

If the intended analysis code is modified, as much data as possible will be converted. If the new intended

analysis code has required properties that are not defined, or if data cannot be transferred, a warning

message will be displayed.

Analysis Preferences

MSC NastranAnalysis Code Selection:

Default Model File Suffix

Default Results File Suffix

OK

Structural

Analysis Type:

.bdf

.op2


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6

Key FeaturesThe Analysis application provides the means to:

Identify a desired analysis type.

Define analysis code specific translation and solution parameters.

Select a sequence of load cases.

Select desired output parameters.

Send data to solvers.

Read results quantities and model data from analysis code results files.

The Analysis application provides the link between the Patran preprocessing and postprocessing

environments and the analysis solvers. The level of integration is identical for application modules,

application interfaces, or user developed interfaces.


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Ch. 2: Analysis Forms MSC.Patran Reference Manual

2 Analysis Forms

The Analysis Form 8

Analyze - Setting Up a File for Analysis 9

Read Results 13

8


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The Analysis FormWhen the Analysis option is selected from the Patran window, the Analysis form is displayed. The

available selections in the Action menu typically are (depending on the selected analysis code) Analyze,

Read Results, and Read Input. The remainder of the form depends upon the selected option in the Action

menu.

The current analysis code and type Preferences are displayed on the form for informational purposes. To

change the selection, pull down the Preferences menu from the menu bar in the Patran window, select

Analysis, and make a new selection in the Analysis Preferences form that is displayed.

The following pages describe the various configurations of the Analysis form. The available optionsdepend on the current analysis code selection. The forms that are subordinate to the Analysis form are

dependent on the current analysis code selection as well.

A detailed description of each form is provided in the individual preference guide or user manual.

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Analyze - Setting Up a File for AnalysisFor applications, the Analyze option will cause the model to be submitted for analysis. For preferences,

the Analyze option will cause the forward translator to run and the resulting input deck may be submitted

for analysis. To abort the analysis prior to submitting, deselect the Analysis option from the Patran

window or change the Action selection on the Analysis form.

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The following options appear on the Analysis form when Analyze is the selected Action.

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The buttons on the lower section of the Analysis form provide access to subordinate forms whereadditional input about the analysis may be input by the user. The functions of these buttons are highly

Object Defines what part of the model will be included in the translation and/or

analysis. Choices may be Entire Model or Current Group.Method Defines how far the analysis will go. The available settings may be Full

Run, Check Run, Analysis Deck, and Model Only. If Full Run is selected,

any required forward translation is done, then the analysis solver is invoked

to run the problem. If Check Run is selected, the solver is asked to only do

a check run. The type of feedback received from a check run depends on

the current analysis code selected.

Available JobsLists all jobnames currently defined for the selected analysis code.

Job Name Defines the name to be attached to all files associated with this particular

run. Every analysis jobname must be unique for a particular analysis code.

The same jobname must be used for both the Analyze and the Read Results

File selections if the results are to be loaded into the originating load cases.

These analysis jobnames are stored in the database and are used to correlate

the load cases selected in Analyze with the load cases it finds in Read

Results File.

TITLESUBTITLELABEL

Specifies the title, subtitle and label to be used in the analysis run for the

currently selected job. This information will be displayed on the Results

Form.

More Help

Preference Guides Preference Guides

Please see, Overview (Ch. 1) in

thePatran Interface to

ABAQUS Preference Guide.


thePatran Interface to MSC

Nastran Preference Guide

Please see, Introduction (Ch. 1)

in thePatran Thermal Users

Guide Volume 1:

Thermal/Hydraulic Analysis.


thePatran Interface to ANSYS

Preference Guide.



SAMCEF Preference Guide


theMarc Preference Guide.


thePatran Interface to LS-

DYNA Preference Guide.


thePatran Interface to Dytran

Preference Guide


thePATRAN 2 Neutral File

Preference Guide



PAMCRASH Preference Guide.

Please see, Quickstart (Ch. 1) in

theMSC SINDA for Patran

Users Guide.

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http://../interfaces/abaqus/aba_intro_topics.pdfhttp://../interfaces/abaqus/aba_intro_topics.pdfhttp://../interfaces/abaqus/aba_intro_topics.pdfhttp://../interfaces/abaqus/aba_intro_topics.pdfhttp://../interfaces/abaqus/aba_intro_topics.pdfhttp://../interfaces/msc_nastran/nas_intro_topics.pdfhttp://../interfaces/msc_nastran/nas_intro_topics.pdfhttp://../interfaces/msc_nastran/nas_intro_topics.pdfhttp://../interfaces/msc_nastran/nas_intro_topics.pdfhttp://../interfaces/msc_nastran/nas_intro_topics.pdfhttp://../modules/thermal/th_intro.pdfhttp://../modules/thermal/th_intro.pdfhttp://../modules/thermal/th_intro.pdfhttp://../modules/thermal/th_intro.pdfhttp://../modules/thermal/th_intro.pdfhttp://../modules/thermal/th_intro.pdfhttp://../interfaces/ansys/intro_topics.pdfhttp://../interfaces/ansys/intro_topics.pdfhttp://../interfaces/ansys/intro_topics.pdfhttp://../interfaces/ansys/intro_topics.pdfhttp://../interfaces/ansys/intro_topics.pdfhttp://../interfaces/samcef/overview.pdfhttp://../interfaces/samcef/overview.pdfhttp://../interfaces/samcef/overview.pdfhttp://../interfaces/samcef/overview.pdfhttp://../interfaces/samcef/overview.pdfhttp://../interfaces/marc/marc01_overview.pdfhttp://../interfaces/marc/marc01_overview.pdfhttp://../interfaces/marc/marc01_overview.pdfhttp://../interfaces/marc/marc01_overview.pdfhttp://../interfaces/dyna3d/3d_intro.pdfhttp://../interfaces/dyna3d/3d_intro.pdfhttp://../interfaces/dyna3d/3d_intro.pdfhttp://../interfaces/dyna3d/3d_intro.pdfhttp://../interfaces/dyna3d/3d_intro.pdfhttp://../interfaces/dytran/dytran_intro.pdfhttp://../interfaces/dytran/dytran_intro.pdfhttp://../interfaces/dytran/dytran_intro.pdfhttp://../interfaces/dytran/dytran_intro.pdfhttp://../interfaces/dytran/dytran_intro.pdfhttp://../interfaces/p2nf/p2nf_intro_topics.pdfhttp://../interfaces/p2nf/p2nf_intro_topics.pdfhttp://../interfaces/p2nf/p2nf_intro_topics.pdfhttp://../interfaces/p2nf/p2nf_intro_topics.pdfhttp://../interfaces/p2nf/p2nf_intro_topics.pdfhttp://../interfaces/pamcrash/pamcrash_intro.pdfhttp://../interfaces/pamcrash/pamcrash_intro.pdfhttp://../interfaces/pamcrash/pamcrash_intro.pdfhttp://../interfaces/pamcrash/pamcrash_intro.pdfhttp://../interfaces/pamcrash/pamcrash_intro.pdfhttp://../interfaces/sinda/ch1quickstart.pdfhttp://../interfaces/sinda/ch1quickstart.pdfhttp://../interfaces/sinda/ch1quickstart.pdfhttp://../interfaces/sinda/ch1quickstart.pdfhttp://../interfaces/sinda/ch1quickstart.pdfhttp://../interfaces/sinda/ch1quickstart.pdfhttp://../interfaces/sinda/ch1quickstart.pdfhttp://../interfaces/sinda/ch1quickstart.pdfhttp://../interfaces/pamcrash/pamcrash_intro.pdfhttp://../interfaces/pamcrash/pamcrash_intro.pdfhttp://../interfaces/pamcrash/pamcrash_intro.pdfhttp://../interfaces/p2nf/p2nf_intro_topics.pdfhttp://../interfaces/p2nf/p2nf_intro_topics.pdfhttp://../interfaces/p2nf/p2nf_intro_topics.pdfhttp://../interfaces/dyna3d/3d_intro.pdfhttp://../interfaces/dyna3d/3d_intro.pdfhttp://../interfaces/dyna3d/3d_intro.pdfhttp://../interfaces/marc/marc01_overview.pdfhttp://../interfaces/marc/marc01_overview.pdfhttp://../interfaces/samcef/overview.pdfhttp://../interfaces/samcef/overview.pdfhttp://../interfaces/samcef/overview.pdfhttp://../interfaces/ansys/intro_topics.pdfhttp://../interfaces/ansys/intro_topics.pdfhttp://../interfaces/ansys/intro_topics.pdfhttp://../modules/thermal/th_intro.pdfhttp://../modules/thermal/th_intro.pdfhttp://../modules/thermal/th_intro.pdfhttp://../interfaces/msc_nastran/nas_intro_topics.pdfhttp://../interfaces/msc_nastran/nas_intro_topics.pdfhttp://../interfaces/msc_nastran/nas_intro_topics.pdfhttp://../interfaces/abaqus/aba_intro_topics.pdfhttp://../interfaces/abaqus/aba_intro_topics.pdfhttp://../interfaces/abaqus/aba_intro_topics.pdfhttp://../interfaces/dytran/dytran_intro.pdfhttp://../interfaces/dytran/dytran_intro.pdfhttp://../interfaces/dytran/dytran_intro.pdf


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dependent on the particular analysis code section. An example of the buttons on the Analysis form for a

"generic" analysis code are shown below.

TranslationParameters...

Displays the Translation Parameters form to specify parameters not

directly related to the solution. These are primarily used by the Application

Preferences during the forward translation.

Solution Type... Displays the Solution Type form to select the desired type of analysis to

run.

Direct Text Input... Specify the parameters used during the solution using the Solution

Parameters form. These parameters are also usually dependent on the

selected Solution Type.

Subcases... Displays a form to select a list of load cases to be included in this analysis

run. The list of selected load cases is order dependent.

Subcase Select... Displays the Subcase Select form to control what output is generated by the

analysis run.

Analysis Manager... If invoked, the Patran Analysis Manager allows for more advanced analysis

management features not available from the Analysis form. For more

details, see theMSC Patran Analysis Manager Users Guide.

13
http://../modules/manager/managerTOC.pdfhttp://../modules/manager/managerTOC.pdf


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Read ResultsThe following options appear on the Analysis form when Read Results is the selected Action. Read

Results indicates that data is to be read in from an analysis code results file. This can be results and/or


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Select File

This form is displayed when the Select Results File button is clicked on the Analysis form and Read

Results is the selected Action, or when the Select Input File button is clicked and the Action is set to Read

Object Defines what data is to be read from the analysis code results file. This can

be set to Result Entities, Model Data, or Both. Before Model Data or Bothis selected, the user must be sure there will not be a conflict with existing

model data. There is no allowance for offsetting IDs when reading model

data from a results file.

Method Defines how the Results Translator will execute. This can be set to

Translate or Control File. If Translate is used, the user-supplied

information is written to a Control File, which in turn is read by the Results

Translator Program. If the Results Translator cannot be found on the

network, the Control File asks that the process stop after the Control Fileis written. The user can then move the Control File to where the Results

Translator resides, and use it to execute the results translation.

Job Name Defines the name to be attached to all files associated with this particular

run. This jobname for the results translation should be the same as the

jobname used in Analyze. This jobname allows the translator to determine

load case results.

TranslationParameters...

Displays the Translation Parameters. These are primarily used for filteringresults or specifying which results are to be imported.

Select Results File... Displays the Select File form to modify the current selection of the analysis

code results file to be read.

More Help

Preference Guides Preference Guides

Patran ABAQUS Patran MSC Nastran Patran Thermal

Patran ANSYS Patran SAMCEF

Patran MSC.Marc

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Input. Use this form to select a file to be read. The default file filters will change depending on the code

preference selected in the Preferences menu.

Filter Defines a filter to be used in displaying files in the Available Files listbox.

Directory or default file extensions may be changed by modifying the

filter.

Directories Lists all current directories. Double click on an entry in this box or click an

entry, then click the Filter button at the bottom of the form to update the

Available Files listbox.

Avvailable files Displays a list of the files that fit the current filter. Select a file by double

clicking on a file name in this listbox.

Selected Results File Displays the name of the results file currently selected.

Filter Updates the Directories and Available Files listbox when the Filter field

has been modified.

/dallas/users/gamel/pf/forms/.

Select File

Directories

OK Filter Cancel

Available Files

/dallas/users/sip/pf/forms/./dallas/users/sip/pf/forms/.

[ ]

Filter

/dallas/users/gamel/pf/forms/*.0P2

Selected Results File

MSC M i i B ild d E l t 2002 I t ll ti G id


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MSC.Mvision Builder and Evaluator 2002 Installation Guide

I n d e xPatran Reference Manual

Aanalysis, 2

setup, 9

application interfaces, 3

application modules, 2, 8

Ffunctional assignments, 5

Ppreferences, 5

Rresults

reading, 13

select file, 15

Uuser-added code, 4

I n d e x

I n d e xI N D E X

Index


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Doc5 nastran Analysis Application