Analysis of Disc Brake Squeal

Disc brake is one of the efficient type of brake now a days that we use for stopping or decreasing the speed of vehicles. It is comprised of major components like rotor disc, caliper, brake pad. After certain interval of use, disc brake starts producing a squeaky noised which is known as disc brake squeal. Basically squeal sound is categorized as low frequency and high frequency squeal. It is a major task to eliminate out the squeal sound. Many researchers have listed out the different reasons to study the squeal sound. Some of them have taken rotor disc material, disc size, coefficient of friction of material as a parametric study for studying the disc brake squeal phenomenon. In this project disc brake of Tata Motors made Indica Vista car was taken for the dimensions and design making. Primarily CAD model is made using Creo 2.0. After design, rotor disc with brake pad of different materials were given static and thermal loading, the results of static and thermal analysis were checked on with the analytical calculations for the same. Later to it, Modal Analysis of rotor disc after use with each type of brake pad was performed using Ansys. The result of modal analysis gave the an idea about the selection of ceramic brake pad as a best suitable material for avoiding the low frequency squeal sound.