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由于机械运转速度的不断提高和新型材料、新型结构的推广应用，旋转机械的非线性动力学行为日显突出和重要基于线性系统原理的转子动力学理论与方法难以对实践中出现的丰富的非线性动力学现象作出准确的描述、阐释和预测近年 来，随着非线性科学研 究的深入和渗透，转 子系统非线性振动已成为应用力学和机械工程领域的研究热点之一从有利于建立旋转机械振动状态集与故障集之间的映射关系出发，综述了近年来转子系统非线性振动研究的主要进展，总结了转子系统中出现的典型非线性动力现象及其产生机理，目的在于丰富旋转机械故障诊断知识库参５５
Due to the continuous improvement of mechanical running speed and the popularization and application of new materials and structures, the nonlinear dynamic behavior of rotating machinery becomes more and more prominent. The theories and methods of rotor dynamics based on linear system theory are hard to predict the nonlinear In recent years, with the deepening and infiltration of nonlinear scientific research, the nonlinear vibration of rotor system has become one of the hot topics in the fields of applied mechanics and mechanical engineering. Based on the establishment of the mapping relationship between the vibration state sets and the fault sets of rotating machinery, the main progresses of nonlinear vibration research of rotor systems in recent years are summarized. The typical nonlinear dynamic phenomena and their generation mechanism in rotor systems are summarized. The purpose is to enrich Rotating Machinery Fault Diagnosis Knowledge Base 55