基于正交试验法的三点接触球轴承结构参数优化设计  

Optimal Design of Structure Parameters for Three Point Contact Ball Bearing Based on Orthogonal Test

作　　者：王廷剑 张静静 王黎钦[2] 公平 于庆杰 WANG Tingjian;ZHANG Jingjing;WANG Liqin;GONG Ping;YU Qingjie(Tianjin University of Technology and Education,Tianjin 300222,China;School of Mechatronics Engineering,Harbin Institute of Technology,Harbin 150006,China;Research and Development Center,AECC Harbin Bearing Co.,Ltd.,Harbin 150025,China)

机构地区：[1]天津职业技术师范大学,天津300222 [2]哈尔滨工业大学机电工程学院,哈尔滨150006 [3]中国航发哈尔滨轴承有限公司研发中心,哈尔滨150025

出　　处：《轴承》2020年第12期12-15,共4页Bearing

基　　金：国家自然科学基金青年科学基金项目(51705364);天津市自然科学基金项目(18JCQNJC74900)。

摘　　要：以某航空发动机主轴用三点接触球轴承为研究对象,建立以球数、球径、垫片角、内圈沟曲率半径系数、外圈沟曲率半径系数、径向游隙为影响因素,以轴承基本额定寿命为目标函数的优化模型,基于正交试验法对轴承结构参数进行优化设计及分析,结果表明:增大球数、球径和减小内外圈沟曲率半径系数有利于提高轴承寿命;径向游隙、垫片角对寿命的影响规律复杂,应在合理的范围内择优选取。Taking the three point contact ball bearing for main shaft of an aero engine as a research object,the optimization model is established with ball number,ball diameter,gasket angle,inner ring groove curvature radius coefficient,outer ring groove curvature radius coefficient,radial clearance as influencing factors and basic rating life of the bearing as objective function.Based on orthogonal test,the structure parameters of the bearing are optimally designed and analyzed.The results show that increasing ball number,ball diameter and reducing inner and outer ring groove curvature radius coefficients are beneficial to improve life of the bearing;the influence of radial clearance and gasket angle on life is complex and should be selected within a reasonable range.

关 键 词：滚动轴承 三点接触球轴承 正交试验 寿命 结构参数 优化设计 

分 类 号：TH133.33[机械工程—机械制造及自动化] V232[航空宇航科学与技术—航空宇航推进理论与工程]