Settings for Specific Topology Optimization?

JTan_1

Hi, I'm learning to perform topology optimization of a brake pedal. However, I am not getting the intended result (see image below).

 

I have set my target to reduce volume and weight, and I'm getting a porous like reduction rather than an organic truss like shape.

Do I have to setup a specific optimization control to achieve the first image? Please advise. Thank you.

Xiaolei

Hi, very probably you haven't defined boundary condition and loads. Usually we need to fix mounting point, then apply loads on the paddle. 

The below is some methods you can try: 

constraint: mass< xxkg

object: min compliance

or 

constraint: displacement< xx mm

object: min mass

Please also refer to optimization ebook(you can find it from Knowledge Base) and OptiStruct tutorials.

 

Thanks. 

Xiaolei