• Dr. P.S. Nerkar
• Mr. Raghav P. Sambrey

The automotive industry has dealt with weight reduction and minimizing of the squeal noise as a way of improving braking results. A brake pad consists of steel backing with friction material attached to it. Application of the brakes produces hydraulic pressure that causes the brake pads (via brake calipers) to clamp down on the rotors creating friction. The friction acting between the pads and the rotors slows and stops the vehicle. Vibrations in the caliper and rotor cause the squeal noise in the brakes. This noise increases with increase in speed, until it reaches a pitch and volume detectable by the human ear. The initial step taken in order to stop squeal is to find and eliminate the source of vibration in a disc brake system. It is generally observed that the pressure distribution is uneven between the disc (rotor) and the pads, i.e. the pressure is found to be higher on the leading side as compared to that on the trailing side of the pads, hence it results into uneven wear of pads which then become a source of vibration in the system. The purpose of this paper is to study the disc brake squeal problem for automotive vehicles.

Vehicle braking system, brake squeal, unstable frequencies, Thermal Analysis of Squeal.

"Vibration and Thermal Analysis of Squeal in Disc Brakes of Four-Wheeler Automobiles", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.521-525, May-2019, Available :http://www.jetir.org/papers/JETIRBV06114.pdf

"Vibration and Thermal Analysis of Squeal in Disc Brakes of Four-Wheeler Automobiles", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp521-525, May-2019, Available at : http://www.jetir.org/papers/JETIRBV06114.pdf