1. Process Chain for Optimization using ANSA, LS-OPT and μETA
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

2. Optimization Process: ANSA – LS-OPT – META
General
Two phases:
Optimization Setup
Design Variables are defined in ANSA and transferred to LS-OPT
Histories and Responses are defined in META and transferred to LS-OPT
Optimization Run
Design Variables controlled by LS-OPT and transferred to ANSA
Histories and Responses calculated by META and transferred to LS-OPT
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

3. Optimization Setup ANSA → Solver → META → LS-OPT Model – Ready to Run
Definition of Optimization Task
Execution of Optimization Task
DV File, Input Deck
Solver Run
Responses, Histories
Solver Results
LS-OPT
META
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

4. Optimization Setup ANSA → Solver → META → LS-OPT Model – Ready to Run
Definition of Optimization Task
Execution of Optimization Task
Definition of Design Variables
Link Design Variables to Model Parameters:
Morphing Parameter
ANSA Parameter
User Scripts
DV File, Input Deck
Solver Run
Responses, Histories
Solver Results
LS-OPT
META
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

5. Optimization Setup ANSA → Solver → META → LS-OPT Model – Ready to Run
Definition of Optimization Task
Execution of Optimization Task
Check Optimization Task
Output DV File and Solver Input Deck
DV File, Input Deck
Solver Run
Responses, Histories
Solver Results
LS-OPT
META
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

6. Optimization Setup ANSA → Solver → META → LS-OPT Model – Ready to Run
Definition of Optimization Task
Execution of Optimization Task
Initial Solver Run to get sample result files for definition of result extraction
DV File, Input Deck
Solver Run
Responses, Histories
Solver Results
LS-OPT
META
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

7. Optimization Setup ANSA → Solver → META → LS-OPT Model – Ready to Run
Definition of Optimization Task
Execution of Optimization Task
Manual extraction of results
Defining session/script of the extraction process
Output formatted result file
DV File, Input Deck
Solver Run
Responses, Histories
Solver Results
LS-OPT
META
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

8. Optimization Setup ANSA → Solver → META → LS-OPT Model – Ready to Run
Definition of Optimization Task
Execution of Optimization Task
Input of Design Variables, Histories, Responses
Fine Tuning of Design Variables (Dependents, Ranges, ...)
Selection of Optimization Strategy
Definition of Objectives and Constraints
DV File, Input Deck
Solver Run
Responses, Histories
Solver Results
LS-OPT
META
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

9. ANSA – Optimization Task
3 main task items
1. Design Variable File
2. Design Variables
3. Output Solver Deck
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

10. ANSA – Optimization Task
Design Variable File
Correctly formatted for import in LS-OPT
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

11. ANSA – Optimization Task
Connecting Design Variables with Morphing Parameters
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

12. ANSA – Optimization Task
Connecting Design Variables with Morphing Parameters
Shape modification
Design Variable =
10.0
-5.0
0.0
Morphing Parameter
Width of depressions
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

13. ANSA – Optimization Task
Connecting Design Variables with ANSA Parameters
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

14. ANSA – Optimization Task
Connecting Design Variables with ANSA Parameters
Modification of shell thicknesses, materials, etc.
ANSA Parameter
Design Variable =
1.0
2.0
5.0
3.0
4.0
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

15. ANSA – Optimization Task
Connecting Design Variables with ANSA Parameters
Modification of connections (weld spot diameter, distance, etc.)
ANSA Parameter
Design Variable (weld spot distance) = 20 30 50 40
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

16. ANSA – Optimization Task
Connecting Design Variables with ANSA Parameters
Modification of connections (weld spot diameter, distance, etc.)
ANSA Parameter
Design Variable (weld spot diameter) =
3.0
4.0
6.0
5.0
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

17. ANSA – Optimization Task
Composite Optimization
Via ANSA Parameters
Modification of fabric orientation
Modification of layer thickness
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

18. ANSA – Optimization Task
Simulation and DOE
Checking Combinations of DV (Full Factorial) → Model Validity
Checking Element Criteria
Failed elements
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

19. ANSA – Optimization Task
Additional commands for improving mesh quality
Fix Quality, Smooth, Reconstruct, etc. for morphed mesh
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

20. Results Extraction using META
Histories and Responses via OptimizerSetup Toolbar
Histories out of 2D plot curves
Responses from annotations
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

21. Connecting ANSA to LS-OPT
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

22. Connecting ANSA to LS-OPT
LS-OPT gets DV from DV file which has been output by ANSA
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

23. Connecting ANSA to LS-OPT
Fine Tuning of Design Variables
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

24. Connecting META to LS-OPT
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

25. Connecting META to LS-OPT
LS-OPT gets histories/responses META’s output file
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

26. Optimization Run LS-OPT → ANSA → Solver → META → LS-OPT
LS-OPT determines set of DV and outputs DV file
Design Variables
ANSA
Solver Input
Start Loop
Solver
Objectives, Constraints
Solver Results
Response Variables
META
LS-OPT
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

27. Optimization Run LS-OPT → ANSA → Solver → META → LS-OPT
ANSA reads DV from DV file,
executes Optimization Task sequence
and outputs solver input deck
Design Variables
ANSA
Solver Input
Start Loop
Solver
Objectives, Constraints
Solver Results
Response Variables
META
*.key / *.nas / *.inp
LS-OPT
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

28. Optimization Run LS-OPT → ANSA → Solver → META → LS-OPT
LS-OPT invokes solver runs
Solver produces result files
Design Variables
ANSA
*.key / *.nas / *.inp
Solver Input
Start Loop
Solver
Objectives, Constraints
Solver Results
Response Variables
META
d3plot / *.op2 / *.odb
LS-OPT
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

29. Optimization Run LS-OPT → ANSA → Solver → META → LS-OPT
Extract responses using either LS-OPT functionality (only LS-DYNA) or META (other solvers)
Design Variables
ANSA
Solver Input
d3plot / *.op2 / *.odb
Start Loop
Solver
Objectives, Constraints
Solver Results
Response Variables
META
LS-OPT
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

30. Optimization Run LS-OPT → ANSA → Solver → META → LS-OPT
Determine objectives and constraints
Design Variables
ANSA
Solver Input
Start Loop
Solver
Objectives, Constraints
Solver Results
Response Variables
META
LS-OPT
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

31. Optimization Run LS-OPT → ANSA → Solver → META → LS-OPT
LS-OPT calculates new values for DVs
Whole process repeated until optimal solution
Design Variables
ANSA
Solver Input
New Loop
Solver
Objectives, Constraints
Solver Results
Response Variables
META
LS-OPT
Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag

32. Integrierte Optimierung mit ANSA, LS-OPT und META – Infotag 01.03.2012