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William W. Follett
MDO Project Lead
Raj RajagopalRDCS Project Lead
::_. Rocketdyne Propulsion and Power
_i:i _ Boeing- Canoga Park
_i"i! : . Presented at:
mW_._?_"_-_ _ Air Force Research Lab (AFRL) Electronic Prototyping Review
_!{_,._ Boeing - SeattJe
_4i_:_! : July2s 2oo_
AGENDA
• Vision
• Approach
ji.i!;_i • Optimization and Robust Design',i • Knowledge Based Systems_- • Collaborative Technologies
_) • Examples
__ :.,- S.gmmary
https://ntrs.nasa.gov/search.jsp?R=20020022115 2019-08-26T04:04:54+00:00Z
:::" f
'Real time" analysis enable rap_
design, multidisciplinary anaiysis
complete mission predictions &
manufacturingsimulations
i ',_ _ ,_,._, . - -'J ,_C C
_: _I_!_ - _
RPP engineers work fluently with
collaborators across the globe, providing
the best so_Jtions by combiningworldwide resources
Automated Reasoning
Expert systems capture design
knowledge. Automated data analysis,
optimization, and robust design
: generate new knowledge.
t( SsemsanMDOCapureanExpand Design Knowledge
Approach
_i!ntegrate design technologies into state of the art design systems
B_: -- Reduce time & cost required to create new products
_! Capture engineering expertise
,_2 Provide users with design environments customized to their problem
_l_p_._¢_n t__ hhology thrusts:
• -tii'fiization ar_l Robust Design
OllaDoratlve_ i ecnnologles
_,_ ...,_r'_:_;/_'-._:_'_ ': -;, ..
Technology Thrust: Robust DesignChallenge: Reduce De_,elopment Coxt
Traditional Design Process
Time
Robust Design Process
Cost
Eliminate Failure Modes
Engineering Supporl
Design
Certification
Time
Test-Fail-Fix Cycle
Representing 73% of Cost
REDUCE BYFACTOR OF 4
- ..... Robust Design Computation SystemRDCS Features
i:
<_': .... File S_'sl_fil M onilor Help
o,[kflow aids robust design ....................................
_ables fromdatabases IlilJ_=_-__il_0delsincluda Vadablesl Math[
i_dai'dized and automated ------ Model! Des-.ii_.I_sls processes _-- ProcessillgW_ -_-_" -_: '-- .... , Compute
im_m_'_ , ._;' _-,_,x., : Results t_U)[OCesses _SVallaDle _
/.u_J_#meg__omputlng
RDCS Probabilistic Analysis - Results
Plot Tvr,e t_)p_m:,:ot
X _is kabe!
I1
Technology Thrust: Optimization
Implement Optimization Tools to Support Increased Design Complexit),
Technology Thrust: Optimization
hnplement Optimization Tools to Support Increased Design Complexi_
Technology Thrust: Knowledge Based Systems
• Future role of analysts/designers can become that of
i: i:i: owner/developer of expert shells or 'knowledge stations'
., • The expert shells interact with each other
'. semi-autonomously
Intelligent Design Advisor CapturesHypersonic Propulsion Expertise
:__ ",'__;iL-,T----,_"r.................
Technology Thrust: C.llab.rative Technologies
Collaborative optimization algorithms• Enable MDO among geographically dispersed teams
• Address MDO problems of unprecedented size and corpJexrty
_,_;_X, • Internet-Based Parallel Processing Tools_. t ° Enable controlled access among design team members to__;._ :. geograp.hically dispersed computational resources
_:'_:_,_ • _',.-, . >L,,.';; ., ..___'},-"_ t.:J._Eacditate effect ve use of ava lable computat ona resources for
ii_a_un_l_e.g., parallel process,ng)
l_V, irt0al collocation of personnel.:[[;: '_r_:_:- _:_;_"! _-_ ,.>_: :
i:;_:_;'L_5 / " : : - " , BO'_/_O
_liul ..... =.lrl ....... , .............
AGENDA
_<--. • Vision
: ° Approach
_:- ° Optimization and Robust Design
l_i{ ° Expert Systems. TechnologiesCollaborative
_ .t._ ? d_ *" " " - ' ,B'OEI.,_
Potential to Reduce RLV Vehicle Weight Demonstrated through
Multidisciplinary Optimization" (MDO)
I Baseline- OptimizedSingleDisciplineWeight0.00I
MDO
J
leduction achievedbyMDO ,.
° Ref AIAA 97-3374, NASA TM 110326
10 15
CASINO Reduces Cost and Complexity of
Aerospike Design by an Order of Magnitude
;I31[ & Automation
+ +
Captured Design & Parallel Computing
Analysis Knowledge & Optimization
• For 2000: _'_"
• $5M added engineeering value |• 4000% return on investment in first _ear
• 61% improvement in predicted
payload-to-ISS
Multidisciplinary Optimization is Now a Design Tool
Triprope/lant Nozzle 3-O Supersonic Stator Vane
• Maximize thrust and minimize hot spots
load reduction, • Match target pressure profiles• 90% improvement achieved
Jetpump
Integrated Development
Multidisciplinary Linked Analysis & Design
Hydrodynamics analysisblade and environment definition Mechanical design (Pro-E)
Pressure application
Model
(ANSYS)
Stressresults
Impeller C_clc Time Reduced - 6 Months to 1 V<eek
i
Rule-based System for Combustion Cliamber Design
New Project I Existing Project
Integrated Design Systems reduce Cost &
Cycle Time for Engine Development
Synthesize MDO, ES and collaborative technologies intoturnkey analysis and design systems
• User-oriented systems in language that user understands
- - Capture key engineering expertise
Reduce design and life cycle costs
_"* Improve product quality
:, Reduce expertise level required by the user
ties:(BIVDS)- Scramjet engine design
. TUrbine optimization program
) network analysis shell
.=Information Powergrid
pike nozzle design
,_'OE/,4Y_"
Summary
The focus of the AA MDO team is to reduce product developmentcost
• Capture & automate best design & analysis practices• Increase availability of low-cost, high-fidelity analys,s
:, • Implement robust design to reduce costs associated with the_'_._.:: Test-Fall-Fix cycle
__e_ntly focusing on several technologies to improve the
_grl " ,.__ i.
les I:-I/L :
.......... I I IIII Ill ......