圆锥滚子轴承动力学仿真分析  

Dynamic Simulation and Analysis of Tapered Roller Bearing

作　　者：伍黎[1] 姚廷强[1] 付圆宁 范然然[1] 

机构地区：[1]昆明理工大学机电工程学院

出　　处：《昆明理工大学学报（自然科学版）》2017年第2期45-50,共6页Journal of Kunming University of Science and Technology(Natural Science)

基　　金：国家自然科学基金项目(11002062,11462008);云南省应用基础研究项目(KKSA20091026)

摘　　要：圆锥滚子轴承承载能力较高,被广泛应用于齿轮传动和工程机械等领域.基于有限元理论与显式动力学理论,运用ANSYS/LS-DYNA仿真软件,建立考虑筐型保持架的接触碰撞作用下圆锥滚子轴承动力学有限元仿真模型.在径向载荷与轴向预紧载荷的联合作用下,计算分析了不同加载时间段与稳定运转后的圆锥滚子轴承的动态响应和动态应力等结果.结果表明：圆锥滚子轴承的套圈、滚子和筐型保持架都具有类似正弦曲线的线速度运动规律,保持架的运动速度存在一定程度的波动.在启动加速度阶段,圆锥滚子轴承内部具有较大的冲击应力,驱动速度稳定后线性滚子和筐型保持架具有较大的应力波动,从而影响保持架的运动稳定性和疲劳寿命.仿真模型和分析结果较为真实地反映了圆锥滚子轴承的动态特性,以及滚子与筐型保持架之间的动态接触碰撞作用.Due to its higher capacity,the tapered roller bearing is widely used in gear transmission,construction machinery and other fields. Based on the finite element theory and explicit dynamic theory,the dynamic finite element simulation model of tapered roller bearing considering the contact impact of basket cage is established by using ANSYS/LS-DYNA simulation software. The dynamic response and dynamic stress of tapered roller bearing under different loading time and stable running are calculated and analyzed under the combined action of radial load and axial preload. The results show that tapered roller bearing rings,rolling body and basket type cage maintain linear velocity motion law similar to the sine curve,and that the cage has motion velocity fluctuations in a certain degree. At the start of the stage of acceleration,the tapered roller bearing has greater impact stress,steady speed driving linear rolling body and the basket type cage with larger stress fluctuations,thus affecting the stability and fatigue life of the cage. The simulation model and analysis results reflect the dynamic characteristics of the tapered roller bearings,and the dynamic contact impact between the rolling element and the cage.

关 键 词：圆锥滚子轴承 筐型保持架 ANSYS/LS-DYNA 仿真分析 

分 类 号：TH113.2[机械工程—机械设计及理论]