Formation of diagnostic signs vector on the basis of a character-istic function of a vibro-acoustic signal

摘要

The article considers the possibility of using the statistical characteristics - both numeric and functional - for the vibration processes assessment. The research revealed that the usage of an area under curve of module of characteristic function of the instantaneous values of vibroacoustic signals for different assemblies and mechanisms as a diagnostic sign and forming the vector of diagnostic signs on its basis make possible to suggest a fundamentally new diagnostic parameter that is invariant to the design of the machine and the parameter's limiting values. The parameter application allows to increase the reliability of diagnostic results and, at the same time, to simplify the diagnostic algorithms.