Modeling and Simulation of Cage Wear in Solid-Lubricated Rolling Bearings
Modeling and Simulation of Cage Wear in Solid-Lubricated Rolling Bearings
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DOI：
10.2474/trol.15.25
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发表时间：
2020-02
期刊：
影响因子：
1
通讯作者：
R. Dahiwal;S. Thielen;B. Sauer
中科院分区：
文献类型：
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作者：
R. Dahiwal;S. Thielen;B. Sauer
保持架不仅分离滚动元件，而且在固体润滑滚动轴承中起润滑剂供应商的重要作用，从而润滑滚动接触。在这种轴承中，其使用寿命可以通过有针对性的保持架磨损显着延长，为了实现使用寿命的进一步增加，有必要更好地了解和可靠地预测磨损。预测磨损和寿命是一个复杂的现象，因为它涉及到在滚动和滑动接触中发生的几个传递过程。这种轴承的寿命可以通过进行大量的寿命实验来确定。固体润滑滚动轴承的整体寿命模型到目前为止还不像传统的轴承寿命模型那样存在。为此，提出了一种基于Adams多体仿真环境的笼兜界面磨损预测与建模的动态仿真策略。提出了一种基于Fleischer磨损规律的增量磨损仿真方法。根据笼型几何形状的重新计算和每个磨损增量的转换摩擦能，计算笼型兜的均匀全局磨损。仿真结果与实验结果吻合较好。本文将阐述这种磨损模拟方法的重要性和适用性。
Cage not only separates the rolling elements but play an essential role of lubricant supplier in solid lubricated rolling bearings, thereby lubricating the rolling contacts. In such bearings, whose service life can be significantly extended by targeted cage wear, a better understanding and a reliable prediction of the wear is necessary in order to achieve a further increase in the service life. In order to predict wear and eventually their life-time is a complex phenomenon as it involves several transfer processes taking place in the rolling and sliding contacts. The lifespan of such bearings can be determined by performing numerous lifetime experiments. Global lifetime model for solid-lubricated rolling bearings does not exist so far like a conventional bearing life model. Therefore, a dynamic simulation strategy based on Adams multibody simulation environment to predict and model wear at cage pocket interface have been proposed. An incremental wear simulation approach based on Fleischer wear law is introduced. Uniform global wear of the cage pocket depending on the recalculation of cage geometry and converted frictional energy for each wear increment is calculated. Simulation results show good accordance with the experimental results. The importance and suitability of such a wear simulation approach will be enunciated in this paper.