齿轮轴承转子系统支撑刚度特性研究  

Study on the Support Stiffness Characteristics of Gear-Bearing-Rotor System

作　　者：杨洋[1] 魏静[1,2] 孙伟[1] 

机构地区：[1]大连理工大学机械工程学院,辽宁大连116024 [2]西南交通大学牵引动力国家重点实验室,四川成都610031

出　　处：《机械设计与制造》2013年第10期13-16,共4页Machinery Design & Manufacture

基　　金：2011年国家国际科技合作项目(2011DFB71670);西南交通大学牵引动力国家重点实验室开放课题(TPL1210);中央高校基本科研业务费科研专题项目(DUT12LAB11)

摘　　要：建立考虑齿轮-轴承转子系统多刚体、多柔体及刚柔耦合的动力学模型,并采用不同轴承刚度计算方法获得支撑刚度。在此基础上,研究系统支撑刚度对齿轮动态啮合力及振动位移等响应的影响规律,并与理论值对比分析。研究结果表明:刚性体模型仿真结果与理论值相比数值普遍偏大,而柔性体仿真结果与理论值基本一致;齿轮-轴承转子系统支撑刚度对齿轮动态响应产生较大影响,支撑刚度取3倍齿轮啮合刚度时,齿轮振动角速度等值与理论值基本相符。因此,利用柔性体模型并选择合理的支撑刚度对齿轮-轴承转子系统的动力学仿真分析具有实际意义。Considering a gear-bearing-rotor system as multi-rigid body, multi-flexible body and rigid-flexible couple multi body, the dynamic models are derived and the support stiffness is calculated by different methods. Then influences of the support stiffness on vibration responses such as dynamic mesh force and displacements, which are compared with theoretical values, are investigated. The results show that flexible simulation values are closer to theoretical values than rigid simulation values. The support stiffness of the gear-bearing-rotor system affects dynamic responses greatly. When support stiffness is taken as three times gear mesh stiffness, simulation values are basically identical with theoretical values. Therefore, using flexible model with the reasonable support stiffness has practical significance in the dynamic simulation analysis of a gear- bearing-rotor system

关 键 词：齿轮-轴承转子系统 支撑刚度 柔性体 动态啮合力 

分 类 号：TH16[机械工程—机械制造及自动化]