转子-轴承系统的润滑与碰摩特性分析  

Nonlinear Specificity Analysis the Lubrication and Rub-impact of a Rotor-bearing System

作　　者：杨令康[1] 朱汉华[1] 贺立峰[1] 

机构地区：[1]武汉理工大学能源与动力工程学院,武汉430063

出　　处：《武汉理工大学学报（交通科学与工程版）》2011年第3期595-598,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家自然科学基金项目资助(批准号:50675162)

摘　　要：在同时考虑轴承油膜力、非线性密封力对碰摩转子影响的基础上,建立了多因素耦合的碰摩转子系统动力学模型.对转子系统在运行过程中的非线性碰摩行为进行了数值仿真,发现随着转子激励频率的增加,系统响应呈现出周期运动和拟周期运动交替出现,最后到达混沌运动及其演变过程.Taking into account the bearing oil film force,non-linear sealing force on the rub-impact rotor system,a dynamic model of rub-impact rotor system with multi-factor coupled was established.Numerical simulation of the rotor system in the rubbing behavior find out that with the increase in rotor speed,system response showing a periodic motion and quasi-periodic motion alternately,and finally to the chaotic motion and its evolution.Some theoretical basis for rotor-bearing system with rub-impact fault diagnosis were provided.

关 键 词：转子系统 碰摩 非线性 分岔 混沌 

分 类 号：O322[理学—一般力学与力学基础]