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Dynamic Reduction

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phtmh2

phtmh2

Mechanical
Aug 28, 2009
2
GB
Hi,
I'm trying to perform a dynamic reduction to reduce a rotating shaft. So far I have been able to produce the stiffness and mass but not the damping (gyroscopic) matrix. I have applied a rotating velocity around the axis of the shaft and then performed a CMS analysis but this has only produced KAAX and MAAX elements. How do I get Nastran to write out the damping terms?

Thanks
 
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