有限长线接触弹流理论研究的最新进展

在课题组已发表综述的基础上查阅了近二十年来的公开文献,系统总结了有限长线接触弹流理论的最新发展,着重介绍了现阶段有限长线接触弹流研究的主要方向,包括热效应、非牛顿流体、偏歪斜工况、脂润滑、端部自由表面、镀层、乏油等;分析了最新的研究热点,包括润滑分析与动力学分析的耦合、疲劳寿命的预测、并行算法等问题;给出了有限长弹流理论仍需深入研究的几个方面,随着我国产品由量到质的转变,精度、寿命的要求越来越高,如何方便的将理论研究移植到产品开发过程,已经成为一个迫切需要解决的问题.

Recent Progress of Elastohydrodynamic Lubrication of Finite Line Contacts

Based on the author's laboratory and published literature, the research status of elastohydrodynamic of finite line contacts are summarized and analyzed. The effects of misalignment, skew, end free surface, grease-lubricated, starvation on the film pressure and film thickness were discussed. The current problem was put forward. The recent research hot spots included the prediction of fatigue life, coupled lubrication and dynamics, parallel algorithm and many others. Finally, it is pointed out that more efforts should be made with respect to the research on the EHL of finite line contacts. As domestic products encountered a transformation from quantity to quality, the demand of precision and working life became higher. The application of theoretical research into the product process has been an urgent subject.