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vibration transmissibility

durukanbdilek

hi admins and moderators

I have a vibration isolation model, as below picture, blue, green and pink part represents shaker table, specimen and constant mass, respectively

I would like to assume blue and pink component as rigid how to perform it ? and Do I need to assign a material card to these components?

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FaroukM

Hi,

If you want to assign a component as a rigid body you have 2 options :

- Choose Young modulus too high,

- Use rigid element.

Best regards,

Farouk

durukanbdilek

how to use rigid element?

Rahul Rajan_21763

For rigid element no need to define property. For constant mass component create CG and connect Specimen/Constant mass component with RBE2 to the CG of constant mass. You could use CONM2 for concentrated mass.