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'Treat as Remote Mass' causes static acceleration 'Solving contact constraints' calculation to diverge

Question asked by Chuck Webb on Mar 1, 2013
Latest reply on Mar 1, 2013 by Bill McEachern

Running a static study in SW 2013 SP2.0, applying a large acceleration a chassis assembly.

 

I have a simplified, symmetrically fixed brazed chassis. I have bonded contact sets at all brazed interfaces. -Study Solves

Next I added top and front covers useing No Penetration and Bolt Connectors. - Study Solves, but much more slowly (because of bolt constraint?)

I inserted metal plates to simulate mass of installed components, using the 'bonded' contact set. - Study Solves

 

I am concerned that the plates are reinforcing the chassis in an unrealistic way since they are 'bonded' to my aluminum chassis.

When I take the plates and 'Treat as Remote Mass', select the face the plates rest on, and Run, the iterative calculation diverges.

 

Any idea why this is happening?

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