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PARAM, COUPMASS

PARAM, COUPMASS

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PARAM, COUPMASS

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Parameter

Values

Description

COUPMASS

<-1, 0, 1, YES, or NO>

Default = NO

If -1, 0, or NO, the lumped mass matrix approach is used for eigenvalue analysis.

If 1 or YES, the coupled mass matrix approach is used for eigenvalue analysis.