The Study of Disc Brake Noise on Three Different Types of Friction Materials

Abstract:

This work investigates the effect of road grit particles and material compositions on disc brake squeal noise. Three different Non Asbestos Organic (NAO) brake pad samples and road particles with a size range between 400 μm to 500 μm are used in the squeal experiment. The relationship between the existence of road particle with the noise occurrence were studied through the change in pressure level, friction coefficient (CoF), sound pressure level (SPL) and material composition. The material compositions were analyzed before and after squealing condition using energy dispersive X-ray analysis (EDX). Result has shown the road particles contribute to the emission of squeal noise and the increasing of some material composition of brake friction material components.

• Periodical: Applied Mechanics and Materials (Volume 663)
• Pages: 113-118
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.663.113
• Online since: October 2014
• Authors: Ahmad Razimi Mat Lazim*, Abd Rahim Abu Bakar, Mohamed Kchaou
• Keywords: EDX Spectrum, External Particles, Material Composition, Squeal

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