嵌入弹性波纹环的轴承挤压油膜特性分析  

Squeeze Oil Film Characteristic Analysis of Bearing with Elastic Waved Ring

作　　者：武洪凯 吴承伟[1] WU Hongkai;WU Chengwei(State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology,Dalian 116024)

机构地区：[1]大连理工大学工业装备结构分析国家重点实验室,大连116024

出　　处：《机械工程学报》2022年第13期185-193,共9页Journal of Mechanical Engineering

基　　金：国家自然科学基金-辽宁联合基金资助项目(U1908233)。

摘　　要：设计了一种弹性波纹环轴承挤压油膜阻尼器,建立了弹性波纹环挤压油膜阻尼器的流固耦合分析模型,基于ABAQUS软件分析弹性波纹环的压缩力学性质,利用MATLAB编程分析弹性波纹环间隙的挤压油膜流动阻尼特性,通过Python脚本进行数据交换实现了阻尼器的流固耦合动力学分析。研究了轴承冲击挤压速度、挤压位移、弹性环厚度、波纹周期数和波纹幅值对阻尼器动力特性系数的影响。结果表明,挤压速度对阻尼器压缩刚度和阻尼特性影响较小,挤压位移和波纹幅值对油膜阻尼有着显著影响,弹性波纹环厚度对挤压刚度影响明显,波纹周期对挤压刚度和阻尼特性影响显著。An elastic waved ring squeeze film damper was designed in the present paper.The fluid-solid interaction analysis model of the elastic waved ring squeeze film damper was established.The compression mechanical properties of the elastic wavy ring were analyzed based on ABAQUS software.The flow damping characteristics of the squeeze film in the elastic wavy ring gaps were analyzed by MATLAB programming.The fluid-solid interaction dynamics analysis of the damper was governed by data exchange with Python script.The effects of bearing impact extrusion velocity,extrusion displacement,elastic ring thickness,wave period and wave amplitude on the dynamic characteristic coefficient of the damper were investigated.The results indicate that the extrusion velocity has little effect on the compression stiffness and damping characteristics of the damper,the extrusion displacement and wave amplitude have significant effect on the damping,the elastic wavy ring thickness has significant effect on the compression stiffness,and the wave period has significant effect on the compression stiffness and damping characteristics.

关 键 词：弹性波纹环 挤压膜阻尼器 流固耦合 雷诺方程 动力特性 

分 类 号：TH133[机械工程—机械制造及自动化]