Static and dynamic coefficient of friction in friction pairs of disc-pad brakes

Problem This scientific article is devoted to the value of static and dynamic coefficients friction disc-pad brakes. The issue brake wear very acute because safety using machine itself depends on its reliable operation. Therefore, relevance chosen topic cannot be doubted. Goal. aim establish patters influence main operational parameters pairs a model potential kinematic coefficient friction. Methodology. methods analytical mechanics theory elasticity were used in article. Results. Theoretical experimental studies (former rest) frictional interaction materials FK-24A - steel 35KhNL carried out disk-shoe long-term braking mode. At same time, it was established range real impulse loads implemented during contact area lining with disc, stress-strain state according criterion micro deformation corresponds elastic-plastic property. elastic plastic properties appear when, each individual case, total stresses exceed yield strength or reach limit. With an increase force normal pressing pad treadmill disc friction, tends increase, mutual overlap kvz.s, decrease property materials. When choosing for pairs, must include at least 20% greater than calculated Practical An disk-pad leads their microprotrusions. data obtained can design disc-shoe brakes