摘要
Scuffing, a major cause of failure in automobile engines, is considered as a dynamicprocess in this study. Local adhesions may occur randomly in lubricated contacts due to the exis-tence of asperity contact and breakdown of lubricating films. Scuffing would take place if the localevents develop rapidly into a large-scale plastic deformation and catastrophic failure. A systemdynamic established in the present paper allows one to predict dynamic behavior of a tribologicalsystem through numerical solutions of a group of differential equations. A simplified analysis basedon this model confirms that the system will develop into a state of instability if the friction force atthe interface increases with temperature.
Scuffing, a major cause of failure in automobile engines, is considered as a dynamic process in this study. Local adhesions may occur randomly in lubricated contacts due to the exis- tence of asperity contact and breakdown of lubricating films. Scuffing would take place if the local events develop rapidly into a large-scale plastic deformation and catastrophic failure. A system dynamic established in the present paper allows one to predict dynamic behavior of a tribological system through numerical solutions of a group of differential equations. A simplified analysis based on this model confirms that the system will develop into a state of instability if the friction force at the interface increases with temperature.
