【摘要】 针对一类非线性转子 机匣系统,建立碰摩模型.应用数值分析的方法对其进行研究,得到偏心距变化时系统响应随转速比(s)的分叉图、拟周期运动的轴心轨迹和Poincare截面图,揭示了偏心距的增大使系统运动进一步复杂化和高维系统存在拟周期运动等现象.更多还原

【Abstract】 A rub-impact mathematic model of a nonlinear rotor-box is established. Applying the means of numerical simulation, we get the bifurcation diagram by using s as parameter under difference eccentric distance. Meanwhile, the orbits and Poincare maps are given when the response of the system is quasi-periodic. Finnally, we discover that eccentric distance encourage complicated response and there are quasi-periodic in the multiple dimension system.更多还原