Topology optimization with constraint of first eigen frequency

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

Hello,

 

I need to design a part using topology optimization which has a first eigen frequency above 60 Hz.

 

I have created FE model with loads, SPCs. I would like to perorm topology optimization with minimize mass with displacement constraints and frequency constraint on 1st mode.

 

I have create the eigrl load case

 

My question is while creating the frequency load step should I include SPC's or not. Does it make much difference on the optimization result.

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited January 2018
    Altair Forum User said:

    I need to design a part using topology optimization which has a first eigen frequency above 60 Hz.

     

    Hi @san7eep

     

    Is this 60HZ with constraints or without constraints?

     

    Use what you have used which gave you 60Hz results.

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