裂纹—碰摩耦合故障转子系统的非线性研究  

Study on Nonlinearity of Rotor-Bearing System with Crack and Rub-Impact

作　　者：田宇[1] 李成英[1] 

机构地区：[1]辽宁工业大学土木建筑系,辽宁锦州121001

出　　处：《辽宁工学院学报》2007年第3期172-175,共4页Journal of Liaoning Institute of Technology(Natural Science Edition)

摘　　要：研究了轴承和裂纹耦合故障的弹性转子系统的复杂非线性现象。针对非线性转子—轴承系统的具体特点,滚动轴承—弹性转子系统碰摩故障的非线性动力学模型,应用Runge-Kutta法数值模拟得到的系统在某些参数域中的分岔图、Poincare映射和频谱图等反映了系统的运动状态,并分析了该藕合转子系统的故障特征,研究结果对该类转子—轴承系统的故阵诊断和预防提供一定的参考。The complex nonlinear dynamics of a rotor-bearing system with crack and rub-impact was studied. Taking into account of real characteristics of the nonlinear rotor-bearing system, the rolling element bearing, rotor-bearing system with crack and rub-impact along with its nonlinear dynamics model, the bifurcation diagram, poincare mapping and frequency spectrum diagram of the system under certain parameters were obtained by numerically analysis with Runge-kutta method, which indicated the dynamics of the system intuitively. And the fault characteristics were also studied. The results brought in theoretical references for the fault diagnosis of rotor-bearing system with crack and rub-impact metioned above.

关 键 词：赫兹理论 非线性动力学理论 滚动轴承 分叉 混沌 碰摩 

分 类 号：O322[理学—一般力学与力学基础]