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Modal superposition sensative to Twin modes?

Thread starter SverkerO
Start date Sep 11, 2013

Status: Not open for further replies.

Sep 11, 2013

SverkerO

Mechanical

Dear all,

Does anyone know if the solution to a time history load (e.g. a water hammer) solved with modal superposition method (in e.g Caesar II) is sensitive to Twin modes in a similar way as a solution using the response spectra method for floor induced loads?

Best regards
Sverker