MODELING OF THE FRICTION AND WEAR CHARACTERISTICS OF SEMI-METALLIC FRICTION MATERIALS FOR COMMERCIAL VEHICLE DISC BRAKES

Abstract

The increased use of the disc brakes on commercial vehicles has provided a new challenge in the prediction of performance and wear of friction materials under different operating conditions from those of passenger car brakes, where most disc brake friction material development has taken place. A prerequisite for successful prediction of service life and performance is the accurate description of the effects of operating parameters on these tribological properties. This paper presents the description of the effects of pressure, speed and temperature on the friction coefficient and wear of a semi-metallic friction material under commercial vehicle operating conditions, using a modeling technique developed at Belgrade University.