We have an exciting announcement about badges coming in May 2025. Until then, we will temporarily stop issuing new badges for course completions and certifications. However, all completions will be recorded and fulfilled after May 2025.

Ansys Learning Forum › Forums › Discuss Simulation › General Mechanical › topology optimization problems › Reply To: topology optimization problems

November 17, 2023 at 2:02 pm
Kalyani Deshmukh
Subscriber

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!

 

Â