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Hello Experts,


I am trying to perform a complex eignevalue/ brake squeal problem on Optistruct 11. The error that i am getting is as follows:-


 *** ERROR # 1461 ***
 Card "STATSUB(PRELOAD)" is not allowed for this subcase type.


I have used Generic as a solver instead of Modal Complex Eigenvalue as it doesn't support Statsub


Can anyone please explain how to resolve this issue. I have been following quite a few tutorials and have followed exactly the steps mentioned but cant get around this error.



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Hi Sritej Kalas


While creating the loadstep, change the analysis type to complex eigen.

I also recommend you to upgrade your version of OptiStruct





Have a look at these 2 tutorials from OptiStruct help which is similar to your case.




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