The analysis, model revisited and the generalization of the existing empirical mathematical model of the force variation law depending upon time in case of spontaneous changes in the state of the friction contact of solids, is completed. Using the adhesion-deformation theory of friction, a phenomeno-logical model of friction force dependence on time and sliding dis-tance, is constructed, taking into account spontaneous changes in the state of frictional contact. The developed model makes it possible to interpret the transition empirical parameters and characteristics from a molecular-mechanical point of view.
mathematical model, sliding friction, fiction laws, time, sliding distance, spontaneous change
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