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Engineering and Construction
Pages 12 (3012 words)
<University> Assignment by <Your Name> <Date> <Lecturer’s Name and Course Number> SECTION A Operation of the brake disc in the braking system Disc brakes can either be used on all the four wheels of the vehicle or only on the front wheels combined with drum brakes on the rear wheels.
Due to this pressure exerted on the pistons, the pistons in turn exert friction on the brake pads hence producing a clamping force on the rotating disc attached to the wheel disc. This clamping force is what is responsible for stopping the rotation disc hence the wheel. Figure 1 below shows the working principle of a braking system.  Figure 1 How do design & operational requirements influence material property requirements for the brake disc? The center of a brake disc contains bearings such that as the vehicle drivers presses the brake pad, the disc is mounted on the axle and is held in to place by the wheel. When brakes are applied, a lot of heat is generated due to the friction between the braking surfaces. Therefore, materials chosen for the construction of the brake parts should be able to withstand very high temperatures. Also, the brake disc runs at a certain high speed in the process of stopping the motion of a wheel.  The most widely used brake disc material was cast iron but it was found to consume a lot of fuel due to its high specific gravity. This has seen exploitation of other lightweight materials to replace cast iron. The materials for use in designing the brake disc must have a low cost per unit property and also meet the digital logic condition. ...
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