Reply To: topology optimization problems

[Kalyani Deshmukh]

Hello,

I did a modal analysis of a damper-mass system. Then I did topology optimization for damper design for a natural frequency. I referred this video Topology Optimization of a Bell Crank Using ANSYS Mechanical - Part II - YouTube for tutorial but for natural frequency. I am having problems with the reverse engineering because the two dampers are acting as a body and I can't select a face in the new modal analysis. I am guessing I did something wrong with the optimization region.

 

This is the topology solution I am getting:

 

The mass has disappered. I did add a new body in the spaceclaim of the reverse engineering modal analysis. But I'm facing a few problems:

1. I can't split the geometry with damper members and body separately. The materials for both of them are different so they have to be separate.
2. I can't mesh the damper elements.
3. When I apply fixed support to the top face of the dampers, the body gets selected (because of problem 1). 

I am expecting a result like this - 

 

But I am getting a problem with meshing. Can you please also provide a link to a good in depth meshing course? Thanks!