Mechanism Design Of Mr Brake For Formula Varsity Car

Mohd Zharif, Zakaria (2010) Mechanism Design Of Mr Brake For Formula Varsity Car. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Magnetorheological (MR) fluid is a smart fluid that can change its behavior in the presence of the magnetic field. This unique characteristic of the MR fluid make it suitable to use in automotive application such as braking system. This report presents the development of a new MR brake system to replace the current conventional hydraulic system on the Formula Varsity Car. The proposed brake system consist of multiple rotating disks immersed in a MR fluid and an enclosed electromagnet. When current is applied and magnetic field is created, the MR fluid solidifies as its yield stress varies as a function of the magnetic field applied. This controllable yield stress produces shear friction on the rotating disks, generating the braking torque. In this project, practical design criteria such as material selection, working surface area, viscous torque generation, applied current density, and MR fluid selection are considered in order to design MR brake. Then, the multiple disks MR brake design will be analyzed using suitable software for it magnetic behavior. Simulation of vehicle in longitudinal direction will be built to observe the behavior of the MR brake while working.

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