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mcewen24

OptiStruct Lattice Optimisation

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Hi,


 


I was using the lattice optimisation tutorial in order to complete a lattice optimisation on my own component and it completed the first step no problem, producing the "_lattice.fem" file. 


 


However, when I then ran that through OptiStruct, I got the following error:


 


*** ERROR # 1814 *** MASSFRAC response on DRESP1 card 2 is not applied to a topology or free-size domain.


 


Please could you advise on what I should do?


 


Kind Regards, 


Iain


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Hi Lain,


 


Can you please check if there are any design variables in the _lattice.fem file?


 


If not, please create the design variable(s).


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