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A time-varying friction moment calculation method of an angular contact ball bearing with the waviness error
Mechanism and Machine Theory ( IF 5.2 ) Pub Date : 2020-06-01 , DOI: 10.1016/j.mechmachtheory.2020.103799 Jing Liu , Xinbin Li , Shizhao Ding , Ruikun Pang
Mechanism and Machine Theory ( IF 5.2 ) Pub Date : 2020-06-01 , DOI: 10.1016/j.mechmachtheory.2020.103799 Jing Liu , Xinbin Li , Shizhao Ding , Ruikun Pang
Abstract Angular contact ball bearings (ACBs) are extensively applied in various mechanical rotational systems. Most of current works are focused on time-invariant calculation methods of the ACBs with and without the waviness. This work proposes a time-varying calculation method for computing the friction moment of an ACB. This method considers the variations of the contact forces between the contact parts of ACB. In this method, the rolling friction moments caused by the elastic material hysteresis, slipping friction moments produced by the differential ones, slipping moment generated by the sliding friction between the cage and ring, and viscous friction moments engendered by the gas–oil mixture are formulated. The friction moments of ACB with the waviness on the single part and all parts are analyzed. The friction moments from the previous time-invariant and proposed time-varying methods are discussed to show the superiorities of proposed method. The effects of the waviness amplitude, shaft velocity, radial force, and waviness order on the time-varying friction moment of the ACB are discussed. The simulation results indicate that the proposed time-varying method can offer a more reasonable and precise approach to study the time-varying friction moments of the ACBs.
中文翻译:
带波纹度误差的角接触球轴承时变摩擦力矩计算方法
摘要 角接触球轴承(ACB)广泛应用于各种机械旋转系统中。目前的大部分工作都集中在有和没有波纹的 ACB 的时不变计算方法上。这项工作提出了一种计算 ACB 摩擦力矩的时变计算方法。该方法考虑了ACB接触部件之间接触力的变化。在该方法中,由弹性材料滞后引起的滚动摩擦力矩、差动产生的滑动摩擦力矩、保持架与环之间滑动摩擦产生的滑动力矩以及油气混合物产生的粘性摩擦力矩被公式化. 分析了带有波纹的ACB在单个零件和所有零件上的摩擦力矩。讨论了以前的时不变和提出的时变方法的摩擦力矩,以显示所提出方法的优越性。讨论了波纹幅度、轴速度、径向力和波纹阶次对 ACB 时变摩擦力矩的影响。仿真结果表明,所提出的时变方法可以提供一种更合理、更精确的方法来研究 ACB 的时变摩擦力矩。
更新日期:2020-06-01
中文翻译:
带波纹度误差的角接触球轴承时变摩擦力矩计算方法
摘要 角接触球轴承(ACB)广泛应用于各种机械旋转系统中。目前的大部分工作都集中在有和没有波纹的 ACB 的时不变计算方法上。这项工作提出了一种计算 ACB 摩擦力矩的时变计算方法。该方法考虑了ACB接触部件之间接触力的变化。在该方法中,由弹性材料滞后引起的滚动摩擦力矩、差动产生的滑动摩擦力矩、保持架与环之间滑动摩擦产生的滑动力矩以及油气混合物产生的粘性摩擦力矩被公式化. 分析了带有波纹的ACB在单个零件和所有零件上的摩擦力矩。讨论了以前的时不变和提出的时变方法的摩擦力矩,以显示所提出方法的优越性。讨论了波纹幅度、轴速度、径向力和波纹阶次对 ACB 时变摩擦力矩的影响。仿真结果表明,所提出的时变方法可以提供一种更合理、更精确的方法来研究 ACB 的时变摩擦力矩。