摇摆工况下错位瓦轴承支撑的转子系统动力学特性  

Dynamics Characteristics of Rotor System Supported by Offset Bearings under Rolling Conditions

作　　者：张磊[1] 裴世源[1] 徐华[1] 张亚宾 朱杰 

机构地区：[1]西安交通大学现代设计及转子轴承系统教育部重点实验室,西安710049 [2]湖南崇德工业科技有限公司,湘潭411228

出　　处：《中国机械工程》2017年第18期2161-2170,共10页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(51605367;51575421);陕西省工业科技攻关项目(2015GY022)

摘　　要：基于轴承刚度和阻尼的分段线性化假设,建立了不同横摇角度的转子轴承模型;利用DLAP软件,耦合求解错位瓦轴承支撑的转子系统的动力学模型;采用特征值和特征向量、不平衡响应分析、稳定性分析和瞬态动力学分析等手段,研究了轴系的稳定性和安全性,并与正常工况下轴系的动力学特性对比,得到了摇摆工况下错位瓦轴承支撑的转子系统的动力学特性。Based on the assumption of piecewise linearization of bearing stiffnesses and dampings,a offset rotor-bearing model with different rolling angles was established.Using DLAP software,coupled solutions of the offset rotor-bearing system dynamics model was presented.By means of eigenvalue and eigenvector,unbalance response analysis,stability analysis and transient dynamics analysis,the stability and safety of the rotor-bearing system were studied,and compared with that under normal operating conditions.The dynamics characteristics of rotor system supported by offset bearings under rolling conditions were obtained.

关 键 词：摇摆工况 错位瓦轴承 转子动力学 分段线性化 

分 类 号：TH113[机械工程—机械设计及理论]