Structural and contact analysis of disc brake assembly during single stop braking event

Abstract

An automobile disc brake system is used to perfor m three basic functions, i.e. to reduce speed of avehicle, to maintain its speed when travelling downhill and to completely stop the vehicle. Duringthese braking events, the disc brake may suffer of structural and wear issues. It is quite sometimes thatthe disc brake components fail structurally and/or having severe wear on the pad. Thus, this paperaims to examine stress concentration, structural deformation and contact pressure of brake disc andpads during single braking stop event by employing commer cial finite element software, ANSYS. The paper also highlights the effects of using a fixed calliper, different friction coefficients anddifferent speeds of the disc on the stress concentration, structural deformation and contact pressure ofbrake disc and pads, respectively. Results from the investigation could provide a better explanation ofthe variation in contact pressure distribution and in turn squeal generation. Thus, this study provideseffective reference for design and engineering application of brake disc and brake pad.