Design and analysis of brake discs to improve performance in fade condition

Brake fade is a phenomenon in which brake system becomes vague in nature. Brake fade is often misinterpreted by people as break fail, but actually it is a partial brake fail which lasts for a very short time. During the process of braking the law of conservation of energy is followed, the car which is moving forward due to the kinetic energy it posses is stopped or decelerated by the heat energy generated at the frictional interface of the pad lining and brake disc. The thermal load is stacked up continuously and very less time is given for the cooling of the brake rotor, this may lead to generation of micro high temperature areas throughout the brake rotor, further these areas can disturb the whole environment of the brake rotor as these small hot spots induce thermal judder and stress which leads to disc thickness variation and abrupt wear of the rotor. The rotor is expected to withstand high temperature loads and forces. The both mechanical loading and the thermal loading can contribute towards the fade. The factors like outer and inner diameter, material, vane design and thickness can affect the heat dissipation. Heat can also be dissipated by further making slots or drills in the rotor. In this study work about the rotors which are not slotted or drilled and would only have two variable values number of vanes, material and the type of vane. Commercially a lot of designs are used like straight vane, diagonal vane, pillar and curved.