Why not realistic optimization results - Topology

Sam George

Dear Users, 

I have performed a frequency based topology optimization simulation. 
Here in my case the picture below is with ISO=0.22, I sometimes find the design space get detached from the non-design space. 
My objective was attained, but it seems the last iterations results will not provide the expected frequency targets.

eg:

I was expecting some material to connect the center area.

Thanks 

Robinson Ferrari_20451

Hi Sam,

Please take a look at this article here in our Community. I hope it can help you.

KB0119960: OptiStruct Topology Optimization Result Interpretation

 

Thank you

Sam George

Thank you Robinson. 

Yes, it helps.

My next query is how to provide two draw directions in the same objective.