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TW 482

Jean-Pierre Coyette and Karl Meerbergen
An efficient computational procedure for random vibro-acoustic simulations

Abstract

We discuss a new method for handling random acoustic excitations. The idea is to approximate the cross power spectral density matrix of the response by a low rank matrix. We illustrate the low rank approximation can be computed efficiently by the implicitly restarted block Lanczos method. We give a theoretical explanation.