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Simulation Mechanical and Multiphysics

Posts: 5
Registered: ‎01-08-2012

Simulate unbalance motor

86 Views, 1 Replies
10-06-2013 11:40 PM

I would like to simulate a machine with unbalance motors to see stresses and so on.

The machine stands on rubber isolator so I can't set that surface to fixed...

I have no idea how to set it up, any idea?


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Valued Mentor
Posts: 501
Registered: ‎08-30-2012

Re: Simulate unbalance motor

10-07-2013 06:57 PM in reply to: Rojs

Hi Rojs,


You need to know the spring rate of the rubber or the material properties and the design. If you know the spring rate, you can use any combination of "Setup > Constraints > General Constraints", "1D Spring Supports", and "3D Spring Supports". If you know the material propeties, you can model the rubber and fix the other end appropriately.


If you do not know anything about the rubber, then it is hard to include it in the analysis.

John Holtz, PE
Mechanical Engineer
Pittsburgh, PA

16 years experience with Simulation Mechanical
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