Topology optimization problem after iteration 31
Altair EmployeeHello,
i’m doing a topology optimization with Optistruct. The part is a rotational symmetric body, which is loaded with 8 independent cosine functions uniformly distributed over the circumference. Each one has its own Load Step.
Until iteration number 31 everything works fine, the process is at 40% and the results looks quite good, but definitely not finished yet . But then the optimization freezes and remains in this state. The last entry in the .stat-File is shown here.
Does anybody know, what the problem could be? What means the FCTMTX at subcase 4?
Thanks for any information and assistance!
Marcus
Answers
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which version of Optistruct you are using at your end.Share out file.
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Please restart run with DOPTPRM,OPTMETH,DUAL2
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Hello Rahul,
thank you very much for the fast reply. I'm using Optistruct 14.0. In the attachment is the out-File. Thanks!
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Hello Rahul,
i try the run with DOPTPRM,OPTMETH,DUAL2 but unfortunately the results are the same. It stops at Iteration 31. Do you know another possibility?
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Please try with MUMPS-Solver.
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