基于齿轮系统动力学的油膜刚度分析  

Analysis of oil film stiffness based on gear system dynamics

作　　者：菅光霄 王优强 刘晓玲 张平 李云凯 JIAN Guangxiao;WANG Youqiang;LIU Xiaoling;ZHANG Ping;LI Yunkai(School of Mechanical and Automotive Engineering,Qingdao University of Technology,Qingdao,Shandong 266520,China;School of Mechanical and Power Engineering,East China University of Science and Technology,Shanghai 200237,China)

机构地区：[1]青岛理工大学机械与汽车工程学院,山东青岛266520 [2]华东理工大学机械与动力工程学院,上海200237

出　　处：《燕山大学学报》2020年第6期544-551,共8页Journal of Yanshan University

基　　金：国家自然科学基金资助项目(51575289,51705270);山东省重点研发计划项目(2019GHY112068);山东省自然科学基金资助项目(ZR2019PEE028);博士后创新人才支持计划项目(BX20190114);山东省青创科技计划项目(2019KJB022)。

摘　　要：为探究动载荷作用下油膜的动态特性,考虑齿轮时变啮合刚度的激励作用,基于动力学理论,建立齿轮系统动力学模型,分析动载荷与静载荷作用下齿轮系统的弹流润滑特性;同时,基于弹流润滑数值解,建立油膜的刚度模型,通过对油膜刚度的求解,验证动载荷作用下油膜的动态特性。研究表明:基于动力学模型进行弹流润滑的求解时,油膜压力和油膜厚度均表现出一定的动态特性,且不同载荷和齿轮转速下的振幅和振频不同;随着载荷的减小和齿轮转速的增大,油膜的刚度减小。In order to investigate the oscillation characteristics of the oil film under the action of dynamic load,considering the excitation effect of the time-varying meshing stiffness of the gear,a dynamic model of the gear system is established based on the dynamics theory.The elastohydrodynamic lubrication characteristics of the gear system under dynamic load and static load are analyzed.A stiffness model of the oil film is established based on the numerical solution of elastohydrodynamic lubrication.The oscillation characteristics of the oil film under dynamic load are verified by solving the oil film stiffness.The research results show that 1.When the kinetic model is used to solve the elastohydrodynamic lubrication,both the oil film pressure and the oil film thickness show certain damped oscillation characteristics.2.The amplitude and vibration frequency are varied under different loads and gear speeds.3.As the gear speed increases,the stiffness of the oil film decreases.

关 键 词：渐开线直齿轮 弹流润滑 时变啮合刚度 动力学模型 油膜刚度 

分 类 号：TH132.4[机械工程—机械制造及自动化]