The Effects of Grit Particle Size on Frictional Characteristics of Automotive Braking System

Abstract:

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The effect of grit particle size on frictional characteristics was investigated using a vertically oriented brake test rig. Silica sand of grit sizes 50-180 µm, 180-355 µm and 355-500 µm were used in drag mode application. Results showed that the presence of hard particles from environment can influence the friction response significantly. Basically, once the hard particles enter the gap, the value and amplitude of friction coefficient tend to decrease. However, slight increase in friction with smaller particles was recorded due to more hard particles involved in mixing and changing the effective contact area. Better friction stability was related to the presence of smaller grit particles and compacted wear debris to form frictional film on the braking interface.

Info:

Periodical:

Advanced Materials Research (Volumes 189-193)

Edited by:

Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang

Pages:

3511-3516

DOI:

10.4028/www.scientific.net/AMR.189-193.3511

Citation:

M. K. Abdul Hamid and G. W. Stachowiak, "The Effects of Grit Particle Size on Frictional Characteristics of Automotive Braking System", Advanced Materials Research, Vols. 189-193, pp. 3511-3516, 2011

Online since:

February 2011

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Price:

$35.00

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