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The Effect of Modal Coupling in Random Vibration Analysis


When modal analysis techniques are used to determine spectral densities of responses of mechanical structures subjected to stationary random loading, a summation of modal spectral densities (both direct- and cross-) should be performed. The importance of the modal cross-spectral densities (which, according to textbook recommendations, can be neglected) is demonstrated.


Page responsible: Bo Torstenfelt
Last updated: 2008-02-07