Topology optimization results not usable

Dumitru

Hello everyone,

 

I have a rotor cover submodel where i'm doing a topology optimization of the cover to see where I can remove some elements to lower the mass. I tried running a static analysis with a centrifugal load(RFORCE) and one with an applied moment force but I didn't get any plausible results. You will find a picture with the result attached(green is cover, blue magnets tied to the cover). 

I would like to know if the approach is correct or if I should try something else. How is one to approach optimizing models involving rotation (centrifugal load , moment)?

 

Thank you in advance!

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yuhaohe

The purpose of topology optimization is to identify the most efficient load path and distribute material accordingly. In your case, the load is uniform all the way 360 degree around and perfectly cylindrical symmetry, so the optimization result is also perfectly cylindrically symmetry - a ring like structure. The result just tells you putting more material in the center region is more efficient - maybe thicker at the center region and thinner near the circumference?

 

Do you plan to cut any holes on the rotor cover? If not, topology optimization may not be the right choice. You may try free size optimization.