The Method of Statistical Linearization for Non-Linear Stochastic Vibrations
In this paper we discuss certain questions related to the method of statistical linearization as an approximation to the response of non-linear systems. We discuss its second moment properties, its relationship to parameter estimation for linear systems as well as possible connections with recursive estimators. Finally, we show by example that for systems with randomly varying coefficients statistical linearization will yield sample properties that differ significantly from the sample solution properties of the original non-linear system.
KeywordsStatistical Linearization Nonlinear Control System Normed Little Mean Square Excitation Sequence Nonlinear Random Vibration
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