摘要
利用非线性油膜力数据库方法获得非线性油膜力 ,结合打靶法、Runge-Kutta法、Poincaré映射和频谱图对刚性 Jeffcott转子系统在较宽参数范围内进行分叉研究。数值计算得到了系统在某些参数域的分叉图、时间历程、频谱图、相图。
The nonlinear dynamic bifurcation behavior of a rigid Jeffcott rotor-bearing system is investigated in a wide parameter rang based on shooting method, Runge-Kutta method, Poincaré map and frequency spectrum. The bearing oil film forces are obtained by means of database. The diagrams of bifurcation, time course, frequency spectrum, phase and Poincaré map diagrams with some typical system parameters are numerically created. The results show that there exists abundant nonlinear dynamic behavior such as double-period bifurcation, Hopf bifurcation, jump phenomenon, K-T periodic solution, quasi-periodic and chaotic motions and so on.
出处
《中国机械工程》
CAS
CSCD
北大核心
2000年第6期697-699,共3页
China Mechanical Engineering
基金
国家自然科学基金资助项目 !(1 9990 51 0 )
