转子系统碰摩故障研究现状及发展综述

Rotor rubbing is one of the rotating machinery main faults, Rubbing makes the gap between the rotor and the stator increases,bearing wear, even destruction of the entire rotating machinery failure. Study it has both theoretical difficulty and practical significance. This paper summarizes recent advances in the field of the rotor rub-impact research:First, explores the mechanism of rubbing fault ;Second, summarizing of the nonlinear dynamics of rotor rub research, Rotor rub shows various forms of cycle and almost periodic motion, as well as a variety of bifurcation and chaos behavior;Last, Pointed out the development trend of the rub-impact rotor study, Combined the nonlinear characteristics of rub-impact rotor and the rotor fault feature, provides a theoretical basis on rotor rub-impact fault diagnosis.