中国机械工程Issue(19)：2633-2639,2640,8.DOI:10.3969/j.issn.1004-132X.2015.19.014
有限长轴承支撑的转子系统非线性动力学分析
Analysis of Nonlinear Dynamics of Rotor System Supported by Finite Long Bearing
摘要
Abstract
Based on the assumption ofπoil film,an approximation expression of nonlinear oil film force of finite hydrodynamic bearing was obtained by variational constraint principal and the separation of variables.The results calculated by the proposed method are in good agreement with the oil film forces by the finite element method,and the computing cost is reduced greatly.Based on the nonlinear oil film force,the speed of rotor,eccentricity of disk and stiffness of shaft were taken as control pa-rameters,nonlinear dynamic behaviors of bearing-rotor system were analyzed by Newmark method. Numerical results reveal periodic,double-periodic,quasi-periodic,6-periodic,10-periodic of rich and complex nonlinear behaviors of the system.关键词
非线性动力学/轴承/转子系统/有限长轴承/稳定性/分岔Key words
nonlinear dynamics/bearing-rotor system/finite long bearing/stability/bifurcation分类
机械制造引用本文复制引用
黑棣,吕延军,张永芳..有限长轴承支撑的转子系统非线性动力学分析[J].中国机械工程,2015,(19):2633-2639,2640,8.基金项目
国家自然科学基金资助项目(51375380) （51375380）
陕西铁路工程职业技术学院常规项目(2013－19) （2013－19）
