A simple deterministic plastoelastohydrodynamic lubrication (PEHL) model in mixed lubrication
A simple deterministic plastoelastohydrodynamic lubrication (PEHL) model in mixed lubrication
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DOI：
10.1016/j.triboint.2018.11.011
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发表时间：
2019-03-01
影响因子：
6.2
通讯作者：
Wilson, Mark C. T.
中科院分区：
文献类型：
--
作者：
Azam, Abdullah;Dorgham, Abdel;Wilson, Mark C. T.
大多数动力传动部件在混合润滑条件下工作。集中的压力和较小的润滑油膜厚度可能会导致表面和次表面应力超过材料屈服极限，从而导致永久的几何形状变化。一个模型的开发，包括确定性的统一的混合润滑框架内的弹塑性行为。模型的细节，并对公布的模拟数据的模型进行验证。进行参数研究，以解决材料屈服对接触参数的影响。结果发现，该模型成功地产生的PEHL接触的所有关键功能。该模型提供了一个有价值的工具来分析PEHL接触，以最小的计算工作量和复杂性的增加。
Most power transmitting components operate under mixed lubrication conditions. Concentrated pressures and smaller lubricant film thickness may cause surface and subsurface stresses to exceed the material yield limit causing permanent geometrical changes. A model was developed to include elastoplastic behaviour within a deterministic unified mixed lubrication framework. Model details are presented and the model is validated against published simulation data. A parametric study to address the effect of material yielding on the contact parameters is performed. It is found that the model successfully produces all the key features of the PEHL contact. The model provides a valuable tool to analyse the PEHL contacts with minimal increase in computational effort and complexity.