REDUCTION OF DISC BRAKE SQUEAL NOISE THROUGH BRAKE PAD MODIFICATION

Authors

  • Ahmad Sulaiman Ahmad Tajuddin School of Mechanical Engineering, Faculty of Engineering Universiti Teknologi Malaysia 81310 UTM Johor Bahru, Johor
  • Abd Rahim Abu Bakar School of Mechanical Engineering, Faculty of Engineering Universiti Teknologi Malaysia 81310 UTM Johor Bahru, Johor

Keywords:

brake squeal, brake pads, dynamometer tests, structural modification, experiment

Abstract

One of the common noise issues in automotive industry is disc brake squeal. Many researchers conduct deep studies to reducing and eliminating disc brake squeal in the past decades. This paper proposes 4modification on the Malaysian national car brake pads to suppress squeal noise. The original and modified brake pads were subjected to dynamometer tests in accordance with SAE J2521 test procedure.It is noticed that the pad geometry modification reduced the brake noise intensity by 6 % with the first modification, 12 % with the second modification, 19 % with the third modification, and 22 % with the fourth modification. Additional modification is done by adding shims at the back of the brake pads and show the greatest squeal noise reduction. It is found also through the experiment that the disc brake squeal is significantly affected by brake pads structural geometry.

References

Poletto, J. et al., 2017. An experimental analysis of the methods for brake squeal quantification. Applied Acoustics 122, pp. 107-112.

Kim, C. & Zhou, K., 2016. Analysis of Automotive Disc Brake Squeal Considering Damping and Design Modifications for Pads and Disc. International Journal of Automotive Technology, 17(2), pp. 213-223.

Hetzler, H. &Willner, K., 2012. On the influence of contact tribology on brake squeal. Tribology International, pp. 237-246.

Tan, C. A. & Chen, F., 2006. Mechanism and Causes of Disc Brake Squeal. Disc Brake Squeal Mechanism, Analysis, Evaluation, and Reduction/Prevention, pp. 7-8.

Wei, D., Song, J., Yanghai, N. & Weiwei, Z., 2019. Analysis of the stick-slip vibration of a new brake pad with double-layer structure in automobile brake system. Mechanical Systems and Signal Processing, pp. 305-316.

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Published

2020-09-10

How to Cite

Ahmad Tajuddin, A. S., & Abu Bakar, A. R. (2020). REDUCTION OF DISC BRAKE SQUEAL NOISE THROUGH BRAKE PAD MODIFICATION. Journal of Transport System Engineering, 7(1), 1–5. Retrieved from https://jtse.utm.my/index.php/jtse/article/view/102

Issue

Section

Transport System Engineering

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