Study on the Sliding Contact Characteristics of Micro-rough Surface of Clutch Friction Pair
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.