粘弹性流体动力润滑与润滑磨损

VISCO-ELASTOHYDRODYNAMIC LUBRICATIONAND LUBRICATED WEAR

分析了等效微弹流接触表团形状与真实情况之间的差异。讨论了材料粘性对弹性变形的影响。将材料粘性引入微弹流模型中，给出了润滑条件下磨粒磨损计算模型以及发生润滑磨损的条件准则。利用所给模型对线接触弹流润滑磨损问题进行了数值计算并给出了与试验结果的对比。

The differences between equivalent and real contact configurations of micro-EHL (elastohydrodynamic Lubrication) are analyzed. The influ ence of material's viscosity on elastic deformation is discussed since it takes time for materials to be deformed.After materials' viscosity is introduced into micro-EHL,a lubricated abrasive wear modelis porposed and a criterion for the lubricaled wear is given. A lubricated wear example isgiven to show variations of pressure,film thickness and surface configuration duringthe wear process.