Investigating the effect of speed, pressure, and friction coefficient on temperature in a linear sliding system

Contact and friction in moving systems cause heat generation and this factor affects the properties and performance of parts. The purpose of this research is to investigate the effect of speed, pressure, and friction coefficient parameters on the heat produced in a linear sliding system. In this regard, a finite element model of a linear reciprocating compressor piston assembly was used and the results were validated using experimental data. Also, the response surface method and ANOVA analysis were utilized in the design of experiments and analysis of the results. Investigation of the results showed the parameters of speed, friction coefficient, and pressure have a direct relationship with temperature, speed has the greatest effect and pressure has the least effect on the produced temperature. Increasing the speed causes to increase the heat production, but the effect of increasing the pressure is the result of increasing the heat caused by increasing the friction force and reducing the heat caused by increasing the effective contact surface and better heat transfer.