Analysis of Nonstationary Random Vibrationsby Karl Popp, Univ of Hannover, Germany,
Document Type: Proceeding Paper
Part of: Structural Safety and Reliability
Nonstationary random vibrations occur in structural mechanics as well as in vehicle dynamics. Very often the nonstationary excitation process can be modelled as stationary white or colored noise modulated by a deterministic time function. In this case a completely algebraic method is available for the computation of the time-varying covariance matrix. The method is suitable also for high-order systems. Examples demonstrate the efficiency of the method for the investigation of structures under earthquake excitation.
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