Brake squeal is a major issue for car manufacturers as it the reason return of many vehicles to customer services, representing high costs companies. To meet customer’s expectations, must be accurately predicted during design process. In context automotive industry, usually refers friction-induced vibrations that generate noise. The main methodology employed nowadays prediction industrial syste...

This research investigated the role of silica on palm kernel shell (PKS) as friction lining materials in automotive brake pad production. The were crushed, milled and sieved into four different particle sizes 100, 150, 200 350 µm. formulations weight percentages employed included Resin (20%), steel slag (15%) carbon black (5%) while varied for each size. Individual formulation was mixed about 1...

Abstract “An object remains in its state of rest or motion until and unless acted upon by an external force” Newton’s first law motion, Braking systems were made possible this rule Sir Isaac Newton, which states that the greater vehicle’s speed, brake force needed to slow it down. This idea spawned several studies subject braking, leading development, turn has given us luxury picking most effec...

Nowadays the improvement researches of pad materials, which are widely used in braking mechanisms land vehicles, still maintain their popularity. In general, it has been proven by studies that material characteristics brake pads composite structure vary greatly depending on manufacturing parameters. this study, effects sintering Al2O3 added performance via surface temperature were investigated....

Most studies of road dust composition have sampled a very wide range of particle sizes, but from the perspective of respiratory exposure to resuspended dusts, it is the PM10 fraction which is of most importance. The PM10 fraction of road dust samples was collected at two sites in Birmingham, UK (major highway and road tunnel) and one site in New Delhi, India. Dust loadings were found to be much...

Squeal noise generation during braking is a complicated dynamic problem which automobile manufacturers have confronted for decades. Customer complaints result in significant yearly warranty costs. More importantly, customer dissatisfaction may result in rejection of certain brands of brake systems. In order to produce quality automobiles that can compete in today’s marketplace, the occurrence o...

This review article comprises of three parts. Firstly, reports of brake manufacturers on the beneficial impact of solid lubricants for pad formulations are surveyed. Secondly, since tribofilms were identified to play a crucial role in friction stabilization and wear reduction, the knowledge about tribofilm structures formed during automotive braking was reviewed comprehensively. Finally, a mode...

This article presents a robust and efficient methodology to study three-dimensional thermoelastic contact problems under orthotropic friction conditions, including the effects of non-linear thermal conductance convective boundary conditions at interstitial zone. The proposed considers element method compute thermomechanical influence coefficients an augmented Lagrangian formulation ensure fulfi...

The rules and standards that define the requirements methods for layout of friction brake systems railway vehicles still demand extensive experimental surveys since general confidence in theoretical predictability pad behaviour is limited. In fact, a review numerous measurements from dynamometer test rigs exposes large variation characteristics. Nevertheless, these could be exploited to develop...