不同箔片结构气体动压轴承动静态特性分析  

Analysis of Static and Dynamic Characteristics of Gas Dynamic Pressure Bearings with Different Foil Structures

作　　者：李东东 贾晨辉[1] 张飞[1] 路艳辉 杨鲁强 LI Dongdong;JIA Chenhui;ZHANG Fei;LU Yanhui;YANG Luqiang(School of Mechatronics Engineering,Henan University of Science and Technology,Luoyang Henan 471000,China;Luoyang Bearing Research Institute Co.,Ltd.,Luoyang Henan 471039,China)

机构地区：[1]河南科技大学机电工程学院,河南洛阳471000 [2]洛阳轴承研究所有限公司,河南洛阳471039

出　　处：《机床与液压》2025年第4期1-9,共9页Machine Tool & Hydraulics

基　　金：国家自然科学基金面上项目(51475142);国家重点研发计划(2022YFB3402704);河南省科技研发计划联合基金(225101610002)。

摘　　要：基于有限元软件Ansys Workbench,建立不同箔片结构气体轴承在可压缩流体介质中运动的有限元模型,采用6DOF动网格计算方法对轴承的运动状态进行流固耦合数值模拟,探讨了不同转速和偏心率对不同箔片结构气体轴承动静态性能的影响规律。仿真结果表明:转速和偏心率与轴承的承载力成正比,与偏位角成反比;主刚度系数与转速和偏心率成正比,主阻尼系数与转速成反比;在相同的转速和偏心率下,五瓣式轴承的承载能力最大,五瓣式箔片轴承的稳定性优于三瓣分离式箔片轴承。Based on the finite element software Ansys Workbench,the finite element model of the movement of gas bearings was established with different foil structures in compressible fluid media.The fluid-structure coupling numerical simulation of the movement state of bearings was carried out by using the 6DOF dynamic grid calculation method,and the influence law of different speed and eccentricity on the dynamic and static performance of different foil gas bearings was discussed.The simulation results show that the rotational speed and eccentricity are proportional to the bearing capacity and inversely proportional to the deflection angle.The main stiffness coefficient is proportional to the speed and eccentricity,and the main damping coefficient is inversely proportional to the speed.Under the same speed and eccentricity,the bearing capacity of five-lobe bearing is the largest,and the stability of five-lobe foil bearing is better than that of three-lobe separate foil bearing.

关 键 词：箔片气体轴承 双向流固耦合 箔片结构 动静态特性 仿真分析 

分 类 号：TP133.37[自动化与计算机技术—控制理论与控制工程] TP391.9[自动化与计算机技术—控制科学与工程]