局部碰摩与油膜力耦合作用下对轴承—转子—定子系统分叉与混沌行为的影响  

EFFECTS OF LOCAL RUB-IMPACT AND OIL FILM FORCE ON BIFURCATIONAND CHAOS BEHAVIOR OF BEARING-ROTOR-STATOR SYSTEMS

作　　者：李成英[1] 王剑[1] 

机构地区：[1]辽宁工学院土木建筑系,辽宁锦州121001

出　　处：《机械强度》2006年第1期123-126,共4页Journal of Mechanical Strength

基　　金：辽宁省教育厅资助项目(202163350)~~

摘　　要：以三个质量六个自由度轴承—转子—定子系统为力学模型,研究非线性碰摩力与油膜力耦合作用下轴承—转子—定子系统的分岔与混沌行为,利用计算机仿真对发动机转子的碰摩故障进行数值模拟,讨论转子系统参数的变化对转子混沌运动状态的影响,发现具有非线性碰摩力及油膜力的局部耦合作用下转子系统的各种多周期运动和混沌运动及其演变过程。A model with three masses and six degree of freedom for studying the response of bearing-rotor-stator system is presented. The bifurcation and chaos behavior of bearing-rotor-stator with local rubbing are studied by means of numerical stimulation with variations in multiparameters , the bifurcation behavior and chaos motion of bearing-rotor-stator are analyzed in detail. The system of bearingrotor-stator with nonlinear local rub-impact has abundant dynamic behavior.

关 键 词：轴承—转子—定子系统 碰摩 混沌 分岔 

分 类 号：O347.6[理学—固体力学] TB125[理学—力学]