Correlation analysis of the piecewise-linear system oscillation at the nonstationary narrow-band excitation

The single degree of freedom piecewise-linear oscillatory system is considered at the nonstationary narrow-band excitation. The above mentioned oscillatory system is used as a testing object model at the fault presence for vibroacoustical diagnosis. Analytical dependencies of the system oscillations auto- and cross-correlation functions are received and investigated at the presence and the absence of the fault