Effect of disc brake squeal with respect to thickness variation: Experimental Modal Analysis

Disc brake or rotor squeal is an ongoing problem that occurs in the automotive industry. An undesirable disc brake noise problem can arise after a period of time of usage. The purpose of this paper is to investigate the structural dynamic behaviour of disc brakes with different wear thickness by usi...

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Main Authors: Samin, Razali, Hao, N. C., As'arry, Azizan, Md Rezali, Khairil Anas, Nuawi, Mohd Zaki
Format: Article
Language:English
Published: Faculty of Mechanical Engineering, Universiti Teknologi MARA 2018
Online Access:http://psasir.upm.edu.my/id/eprint/72400/1/Effect%20of%20disc%20brake%20squeal%20with%20respect%20to%20thickness%20variation.pdf
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author Samin, Razali
Hao, N. C.
As'arry, Azizan
Md Rezali, Khairil Anas
Nuawi, Mohd Zaki
author_facet Samin, Razali
Hao, N. C.
As'arry, Azizan
Md Rezali, Khairil Anas
Nuawi, Mohd Zaki
author_sort Samin, Razali
collection UPM
description Disc brake or rotor squeal is an ongoing problem that occurs in the automotive industry. An undesirable disc brake noise problem can arise after a period of time of usage. The purpose of this paper is to investigate the structural dynamic behaviour of disc brakes with different wear thickness by using Experimental Modal Analysis. The wear thickness of disc brake rotors are 0.5 mm, 1.0 mm and 1.5 mm from the original thickness of 15.8 mm and 3.2234 kg weight. The modal parameters such as natural frequency, damping ratio, and mode shape are obtained in a free-free condition by using an impact hammer test. For original thickness of disc brake rotor, the first eight natural frequencies are 1256.4 Hz, 2486.9 Hz, 2654.9 Hz, 3092.1 Hz, 3348.7 Hz, 3407.0 Hz, 4130.0 Hz, and 5709.6 Hz. The results show that the natural frequency decreases when the thickness reduction increased at the same mode. It can be concluded that the wear effect of the disc brake rotor is one of the factors which may lead to the brake squeal problem due to the reduction of the natural frequency of the disc brake rotor.
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spelling upm.eprints-724002020-06-02T22:14:57Z http://psasir.upm.edu.my/id/eprint/72400/ Effect of disc brake squeal with respect to thickness variation: Experimental Modal Analysis Samin, Razali Hao, N. C. As'arry, Azizan Md Rezali, Khairil Anas Nuawi, Mohd Zaki Disc brake or rotor squeal is an ongoing problem that occurs in the automotive industry. An undesirable disc brake noise problem can arise after a period of time of usage. The purpose of this paper is to investigate the structural dynamic behaviour of disc brakes with different wear thickness by using Experimental Modal Analysis. The wear thickness of disc brake rotors are 0.5 mm, 1.0 mm and 1.5 mm from the original thickness of 15.8 mm and 3.2234 kg weight. The modal parameters such as natural frequency, damping ratio, and mode shape are obtained in a free-free condition by using an impact hammer test. For original thickness of disc brake rotor, the first eight natural frequencies are 1256.4 Hz, 2486.9 Hz, 2654.9 Hz, 3092.1 Hz, 3348.7 Hz, 3407.0 Hz, 4130.0 Hz, and 5709.6 Hz. The results show that the natural frequency decreases when the thickness reduction increased at the same mode. It can be concluded that the wear effect of the disc brake rotor is one of the factors which may lead to the brake squeal problem due to the reduction of the natural frequency of the disc brake rotor. Faculty of Mechanical Engineering, Universiti Teknologi MARA 2018 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/72400/1/Effect%20of%20disc%20brake%20squeal%20with%20respect%20to%20thickness%20variation.pdf Samin, Razali and Hao, N. C. and As'arry, Azizan and Md Rezali, Khairil Anas and Nuawi, Mohd Zaki (2018) Effect of disc brake squeal with respect to thickness variation: Experimental Modal Analysis. Journal of Mechanical Engineering, 6 (1 spec.). 33 - 44. ISSN 1823- 5514; ESSN: 2550-164X https://jmeche.uitm.edu.my/browse-journals/special-issues/special-issue-2018-vol-6-sustainable-mobility/
spellingShingle Samin, Razali
Hao, N. C.
As'arry, Azizan
Md Rezali, Khairil Anas
Nuawi, Mohd Zaki
Effect of disc brake squeal with respect to thickness variation: Experimental Modal Analysis
title Effect of disc brake squeal with respect to thickness variation: Experimental Modal Analysis
title_full Effect of disc brake squeal with respect to thickness variation: Experimental Modal Analysis
title_fullStr Effect of disc brake squeal with respect to thickness variation: Experimental Modal Analysis
title_full_unstemmed Effect of disc brake squeal with respect to thickness variation: Experimental Modal Analysis
title_short Effect of disc brake squeal with respect to thickness variation: Experimental Modal Analysis
title_sort effect of disc brake squeal with respect to thickness variation experimental modal analysis
url http://psasir.upm.edu.my/id/eprint/72400/1/Effect%20of%20disc%20brake%20squeal%20with%20respect%20to%20thickness%20variation.pdf
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