齿轮磁流体润滑与动力学耦合研究  

Coupling on Ferrofluid Lubrication and Dynamics of Gear System

作　　者：菅光霄 王优强 于晓[1,2] 李云凯 罗恒 JIAN Guangxiao;WANG Youqiang;YU Xiao;LI Yunkai;LUO Heng(School of Mechanical Automotive Engineering,Qingdao University of Technology,Shandong Qingdao 266520,China;Key Lab of Industrial Fluid Energy Conservation and Pollution Control,Ministry of Education,Qingdao University of Technology,Shandong Qingdao 266520,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]青岛理工大学工业流体节能与污染控制教育部重点实验室,山东青岛266520

出　　处：《摩擦学学报》2021年第3期325-333,共9页Tribology

基　　金：国家自然科学基金项目(51575289,51705270);山东省自然科学基金项目(ZR2019PEE028)资助。

摘　　要：为探究齿轮磁流体润滑与动力学的耦合效应,考虑外磁场及时变啮合刚度的激励作用,建立齿轮磁流体润滑模型与动力学模型,分析磁感应强度对磁流体黏度、油膜刚度、动载荷分布以及润滑特性的影响.研究结果表明:适当增大磁感应强度并使磁流体中的磁性颗粒达到其饱和磁化强度,可以减小动态传递误差、齿轮副振动速度以及动载荷,改善啮入冲击和换齿冲击;较大的磁感应强度可以降低油膜温升,增大油膜厚度并使油膜压力和油膜厚度的振幅减小且加快其趋于稳定的速度,在改善润滑效果的同时并在一定程度上抑制齿轮系统振动和噪声的产生.In order to explore the coupling effect of ferrofluid lubrication and dynamics of gear system,considering the excitation effect of external magnetic field and time-varying meshing stiffness,a ferrofluid lubrication model and a dynamic model were established to analyze the influence of magnetic induction intensity on ferrofluid viscosity,oil film stiffness,dynamic load distribution and lubrication characteristics.The results showed that the dynamic transmission error,vibration velocity and dynamic load can be reduced by appropriately increasing magnetic induction intensity and making the magnetic particles in the ferrofluid reach their saturated magnetization intensity,and hence the bite-into impact and tooth-change impact can be improved.The larger magnetic induction intensity reduced the temperature rise of oil film and increased the oil film thickness.When a large magnetic induction intensity was adopted,the amplitude of oil film pressure and the oil film thickness can be reduced,and the oil film pressure and oil film thickness tended to stabilize more quickly which means improved lubrication effect and suppressed vibration and noise of the gear system.

关 键 词：磁流体润滑 磁感应强度 油膜刚度 动力学模型 动载荷 

分 类 号：TM15[电气工程—电工理论与新技术] TJ866[兵器科学与技术—武器系统与运用工程]