Disc Brake Research Paper
1.1 INTRODUCTION ABOUT DISC BRAKE
Fig 1.1 DISC BRAKE
A disc brake is a type of brake which uses calipers to squeeze pairs of pads against a disc to create friction that resists the rotation of a shaft, such that a vehicle axle, either to reduce its rotational speed or to hold it stationary. In this action kinetic energy is converted in heat energy due to friction and the brake is applied. Disc brakes are used for motor vehicles but the principals of a disc brake are applicable to almost any rotating shaft.
• DESIGN LAYOUTS OF DISC BRAKE
Components of the Disc Brake Unit
Cars uses the hydraulically operated foot brakes on the rear wheel. A layout of the proposed braking system is shown in Figure 4.1. The components of the system are listed below:
1. Brake lever or pedal. (pushes the master cylinder piston)
2. Master cylinder. (produces pressure in the brake system)
3. Hydraulic lines. (transfer hydraulic pressure from master cylinder to wheel cylinder)
4. Disc or rotor.
5. Caliper unit.
6. Mechanical linkage. (to move the caliper unit in radial direction) Fig
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It is made with simple and easy manufacture parts and it is also easy to assemble and understand. The machining cost will also be reduced. The Existing caliper was first analyzed at cold working conditions without taking into account the effects of thermal expansion. The modular design was analyzed without considering the effects of thermal expansion. This is done to study the amount of deformation due to tangential Force and pressure loading. These results were used to study the increase in deformation in the caliper at high temperatures. The modular brake was then analyzed using a nodal temperature of 300ºF. The displacement increased as compared with the previous case. This is due to the thermal expansion of the individual parts in the
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