Effect of Pressure Fluctuations on the Temperature During Braking

Abstract

The aim of this study is to develop the numerical–analytical model of frictional heating in a pad/disc system during braking including the pressure fluctuations, engendered by the pump in an anti-skid braking operation. For this purpose, the problem of motion and the one-dimensional thermal problem of friction for a semi-space/semi-space tribosystem were formulated and solved. Obtained solutions allow to calculate temperature distribution on the contact surface and inside the friction elements. Thermal analysis was performed for a metal–ceramic pad and a cast iron disc during one-time braking including the time-dependent, oscillating pressure. The influence of amplitude of pressure fluctuations on the temperature variations was investigated, especially on the value of maximum temperature achieved during braking.

Influence of Functionally Graded Protective Coating on the Temperature in a Braking System

“…A generalization of this solution for a case considering fluctuations in pressure on the contact surface was presented in [ 20 ]. Such a temporal profile of contact pressure during braking with consideration of its oscillations was also considered in [ 23 ]. Asymptotic solutions (at large and small values of time) of the heat conduction problem for a three-element tribosystem with generalized boundary conditions on the sliding surface were obtained in [ 21 ].…”