Sokolan K. Development on the basis of the stochastic processes theory of a method for calculation of coefficient of friction in unlubricated piston seals

The methods of modeling of strongly anisotropic rough surfaces and the simulation methods of a structure of rough surfaces are developed. The basic equation of contacting of metal-polymer unlubricated piston seals is deduced and the engineering methods for calculation of unlubricated piston seals are developed. The technique of determination a molecular component of friction force by results of direct experimental researches is offered. The experimental check has proved efficiency of the developed settlement methods. The dependence of the basic characteristics of friction contact from parameters of a roughness, loading and physical-mechanical properties of friction pair is investigated. The technique of account of a nominal contact pressure in unlubricated piston seals of compressors, which is taking into account real structure of contact a piston ring - the cylinder is developed.