双矩形腔静压推力轴承内部流场动态分析  

Dynamic Analysis of Internal Flow Field of Double-rectangular Cavity Hydrostatic Thrust Bearing

作　　者：张艳芹[1] 权振 冯雅楠 孔鹏睿 孙吉昌 孔祥滨 Zhang Yanqin;Quan Zhen;Feng Ya′nan;Kong Pengrui;Sun Jichang;Kong Xiangbin(School of Mechanical and Power Engineering, Harbin University of Science and Technolog, Harbin 150080, China)

机构地区：[1]哈尔滨理工大学机械动力工程学院,黑龙江哈尔滨150080

出　　处：《机械传动》2018年第12期109-113,共5页Journal of Mechanical Transmission

基　　金：黑龙江省自然科学基金(E2017048)

摘　　要：以Q1-205型双矩形腔静压推力轴承为研究对象,采用理论分析、动态仿真和实验测试相结合的研究方法,针对6种入口流速和3种工作转速工况油膜厚度变化对静压轴承的速度场、涡度及压力场进行了分析。采用动网格技术得出不同工况参数下膜厚与封油边流量、涡度、油膜压力关系曲线,揭示了油膜性能动态变化规律。研究发现,油腔内的低速区和高涡度区集中分布于逆流侧封油边处,且油膜厚度越小集中现象越显著,随着入口流速增大,油腔压力升高,低膜厚下高速时由于压力损失严重使得腔内压力随工作转速的增加而有所减少。Taking the Q1-205type double-rectangular cavity hydrostatic thrust bearing as study object,the method combining theoretical analysis,dynamic simulation and experimental testing is used,aiming at the variation of oil film thickness under six inlet velocity and three working speed conditions,the velocity field,vorticity and pressure field are analyzed.Though the dynamic mesh technique,the relationship curves between the film thickness and the flow rate,vorticity and pressure of the film under different operating conditions are obtained.Which revealed the dynamic change rule of film performance.The results show that the low speed regions and high vorticity regions in the oil cavity are located at the edge seal of the countercurrent side,and the phenomenon increases with the decrease of film thickness.In the wake of the inlet velocity and pressure of oil cavity raise the pressure in the cavity reduces with the increase of working speed due to the serious pressure loss.

关 键 词：双矩形腔静压轴承 速度场 动网格 涡度 压力场 

分 类 号：TH133.3[机械工程—机械制造及自动化]