In this paper on the basis of stochastic linearization techniques,an analytical method is presented for the dyramic reliability of a lightly damepd and weakly nonlinear multidegree-of-freedom system excited by stationary Gauss wideband random loads with the help of the mode superposition method.It is proved that under the condition of the stationary Gauss white noise loads the equivalent normalized responses are approximately independent. With this conclusion the joint probabilistic density function of the ...
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