MODAL VIBRATION DIAGNOSTICS OF SYSTEMS WITH THE AID OF ASYNCHRONOUS SPECTRUM ANALYSIS

The potential of a computer program for a spectrum analysis of discrete stationary and nonstationary vibratory processes and its application to the solution of practical and theoretical inverse problems is considered. "Die mqjor stages of the procession of discrete time series on the basis of the Fourier and Proqy methods are compared. Their adequacy to the physics of vibratory processes, as well as the roetrological validity, are considered. The advantages of the Proqy asynchronous spectrum analysis In identifying and analyzing the parameters of the natural modes of vibration, an accuracy of identifying the parameters of transients and the stability of dynamic systems, the theoretical continuity and physical specific features of the process, and the coefficients of linear and nonlinear differential equations for systems with lumped parameters are discused.