Identification of the Nonlinear Vibration Characteristics Based on the Wiener Kernels

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Wiener series are the important functional series describing nonlinear system. If an input signal is the Gaussian white noise, the wiener kernels are estimated through calculating the cross-correlation functions of the input and output of a nonlinear system. In this paper, a single-DOF quadratic nonlinear system is identified by the Wiener series. The results show that the intensity of the nonlinear response can be expressed by the second-order kernel.

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4668-4672

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October 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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