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rotordynamics analysis by PATRAN and NASTRAN

Submitted by dollfish000 on

Hi guys,

    Is there anybody use PATRAN and NASTRAN to simulate rotor-bearing sysytem.

After modeling the shat and meshing it, I don't know which element type can be used to 

analysis the bearing than contain cross stiffness and damping  coefficients.

The following is an exmple:

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