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Running gear
Published in Andrew Livesey, Practical Motorsport Engineering, 2019
The simple hydraulic brake system comprises a master cylinder and wheel cylinders and drums – as found on very old racing cars and racing motorcycles, or callipers and discs (called rotors in the USA) on later ones. The master cylinder is connected to the wheel cylinders by narrow bore brake pipes, also called brake lines, or Bundy tubes. Remember from Pascal’s Law – the pressure applied at the master cylinder by pressing the brake pedal will also be applied all along the brake pipes and at the wheel cylinders. When the brakes are fully applied the pressure is typically 50 bar (750 psi), although it may be as much as 150 bar (2,250 psi). When the brakes are released the residual pressure is about 0.25 bar (4 psi). Flexible brake hoses are used to connect between the hard lines attached to the body/chassis and the moving components such as the brake callipers.
Fluid Statics
Published in Jenn Stroud Rossmann, Clive L. Dym, Lori Bassman, Introduction to Engineering Mechanics, 2015
Jenn Stroud Rossmann, Clive L. Dym, Lori Bassman
Many devices exploit the hydrostatic pressure distribution. The hydraulic brakes in an automobile take advantage of the fact that pushing on a column of fluid with a certain force (by pressing on a foot pedal) transmits the pressure by moving brake fluid through the car’s brake lines. A hydraulic lift in a mechanic’s shop allows a small force to be applied to a small piston area, then transmitted as fluid pressure to a larger area in order to lift a heavy vehicle (whose weight is much greater than the small force applied).* Similar hydraulic pistons are often used to reduce the force required to move or lift heavy loads.
Hydraulic brake systems
Published in M.J. Nunney, Light and Heavy Vehicle Technology, 2007
In the hydraulic brake system, force is transmitted from the brake pedal to the friction elements of the wheel brakes through the medium of a column of virtually incompressible liquid known as brake fluid.
Tribo-mechanical performance of brake composite material: a comprehensive review
Published in Tribology - Materials, Surfaces & Interfaces, 2023
Dhinakaran Veeman, Jitendra Kumar Katiyar, Alessandro Ruggiero
Moreover, the different materials and their effect on brake efficiency are discussed. These brakes are classified into several types based on the mode of operation and the direction of forces acting. Based on the method of operation, they are classified as, Hydraulic brakes, Air brakes and Magnetic brakes. Based on the direction of forces working, they are classified as Radial brakes and axial brakes. Hydraulic brakes use fluid power to transfer pressure from a controlled mechanism to a mechanical one. These brakes are very efficient and depend on fluid properties, material characteristics, etc. [16,17].