离合器摩擦副微观粗糙表面滑动接触特性研究
Study on the Sliding Contact Characteristics of Micro-rough Surface of Clutch Friction Pair
董玮 1魏成思 2郑长松 3王茜 4李超3
作者信息
- 1. 陆军装备部信息保障室,北京100072
- 2. 北京北方车辆集团有限公司,北京100072
- 3. 北京理工大学 机械与车辆学院,北京100081
- 4. 北京信息科技大学 现代测控技术教育部重点实验室,北京100192
- 折叠
摘要
考虑离合器摩擦元件实际形貌特征,建立了摩擦表面微凸体二维挤压和滑动接触有限元模型,研究了摩擦表面的微观接触特性.摩擦表面间的接触实际为微凸体的相互挤压,随着施加载荷的增加,摩擦表面接触微凸体的个数逐渐增加,实际接触微凸体数量的变化影响单个微凸体的承受载荷.摩擦表面之间的滑动接触实际上是微凸体的相对挤压和剪切,并且致使微凸体顶部产生弹塑性变形的过程.本研究为摩擦元件的摩擦磨损机理研究提供了理论基础.
Abstract
Considering the actual morphology characteristics of the clutch friction component,a 2D extrusion and sliding contact finite element model of friction surface micro-asperities was established to study the microscopic contact characteristics of the friction surface.The contact between friction surfaces is actually the mutual extrusion of micro-asperities.With the increase of applied load,the number of micro-asperities in contact with the friction surface gradually increases,and the change in the actual number of micro-asperities affects the load bearing capacity by a single micro-asperity.The sliding contact between friction surfaces is actually the process of relative extrusion and mutual shearing of micro-asperities,thus leading to the elastic-plastic deformation at the top of the micro-asperity.This study provides a theoretical basis for the research of friction and wear mechanisms of friction components.
关键词
离合器/摩擦元件/微凸体/接触特性Key words
clutch/friction component/asperities/contact characteristics引用本文复制引用
出版年
2024
NETL
NSTL
万方数据