【摘要】 提出了三个质量六个自由度轴承-转子-定子系统非线性的碰摩力模型,研究了轴承-转子-定子系统发生碰摩时的分岔与混沌行为,并利用计算机仿真对发动机转子的碰摩故障进行了数值模拟,进而讨论了转子系统参数的变化对转子混沌运动状态的影响,发现了具有非线性碰摩力的局部碰摩转子系统的各种多周期运动和混沌运动。更多还原

【Abstract】 A model of non-linar rub-impact with three masses and six-degree of freedom is proposed. The response of bearing-rotor-stater system to the rub-impact is researched.The bifurcation and chaos behavior of bearing-rotor-stator with local rubbing are studied by means of numerical stimulation.In view of the case of multiparameters ,the bifurcation behavior and chaos motion of bearing-rotor-stator are analyzed in detail.The system of bearing-rotor-stator with nonlinear local friction has abundant dynamic behavior.更多还原