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[cpgeagadir]

Dear Community,

I would like to model the model below but I don't know how to define the periodic boundary condition in Ansys workbench . I ask for your help to solve this problem

Thank you in advance.

[Saumadeep Choudhury]

I'm assuming this is a base excitation case and for that, you can use the "Displacement" boundary condition and in that turn on base excitation and provide a periodic excitation as shown in the images attached.
Thanks, Saumadeep
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[cpgeagadir]

Thank you for your reply. The base is a periodic foundation and I wanted to model the periodic boundaries of this structure

[Ashish Khemka]

Please insert periodic symmetry. For your structure, I think you can insert a linear periodic condition.
Symmetry Region (ansys.com)
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Regards Ashish Khemka

[cpgeagadir]

I will try it, thank you for your reply.
Best regards