基于三维CFD的电机滑动轴承油膜特性分析  

Analysis of Oil Film Characteristics of the Motor Sliding Bearings Based on Three-Dimensional CFD

作　　者：张祖川 ZHANG Zuchuan(Dongfang Electric Corporation Dongfang Electric Machinery Co.,Ltd.,618000)

机构地区：[1]东方电气集团东方电机有限公司,618000

出　　处：《电机技术》2024年第3期17-20,27,共5页Electrical Machinery Technology

摘　　要：大型电机径向滑动轴承的油膜特性是研究电机转子的振动水平、润滑油温变化以及轴承设计的基础。文章基于三维CFD的方法,探究电机滑动轴承的油膜特性。首先,以电机径向滑动轴承为研究对象,建立了电机径向滑动轴承的物理模型及流场模型;然后,运用CFD仿真软件分析了不同偏心率下径向滑动轴承的油膜特性;最后,分析了径向滑动轴承在不同转速下油膜分布特点以及油膜压力分布情况。The oil film characteristics of radial sliding bearings in large motors are the fundamental when studying the vibration levels of motor rotors,the temperature changes of lubricating oil and the design of bearings.The article explores the oil film characteristics of the motor sliding bearings based on a three-dimensional computational filuid dynamics(CFD)approach,Firstly,taking the radial sliding bearing of a motor as the research object,a physical model and a flow field model of the radial sliding bearing are established.Then,CFD simulations are conducted to analyze the oil film characteristics of the radial sliding bearing under different eccentricities.Finally,the distribution characteristics of the oil film and the pressure distribution of the oil film in the radial sliding bearing at different speeds are analyzed.

关 键 词：滑动轴承 油膜压力 CFD 偏心率 

分 类 号：TM303[电气工程—电机]