A study on squeal noise reduction considering the pad shape of the disc brake system for urban railway vehicles

Seoyeon Ahn; Chanhyuk Nam; Sungjin Choi; Daekwon An; Ingi Kim; Kyungsoo Seo; Changhyun Sohn

doi:10.1007/s12206-021-0410-x

A study on squeal noise reduction considering the pad shape of the disc brake system for urban railway vehicles

Seoyeon Ahn, Chanhyuk Nam, Sungjin Choi, Daekwon An, Ingi Kim, Kyungsoo Seo, Changhyun Sohn

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

In this paper, to help reduce the squeal noise produced during the braking of urban railway vehicles, the shape of the disc brake pad was investigated to relieve contact stress. To analyze the disc brake system to identify the source of the squeal noise, a finite element model of the disc brake system was used, including the peripheral brake parts to increase accuracy. A complex eigenvalue analysis was performed to predict squeal noise generation. Verification was carried out using domestic urban railway field test results to confirm the accuracy of the analysis model. A pad shape that relieves contact stress is proposed to reduce squeal noise produced by nonuniform contact between the disc and pad. The results of this study can be utilized for future studies on squeal noise reduction.

Original language	English
Pages (from-to)	1923-1933
Number of pages	11
Journal	Journal of Mechanical Science and Technology
Volume	35
Issue number	5
DOIs	https://doi.org/10.1007/s12206-021-0410-x
State	Published - May 2021

Keywords

Brake disc
Brake pad
Complex eigenvalue analysis
Squeal noise
Urban railway vehicle

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10.1007/s12206-021-0410-x

Cite this

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title = "A study on squeal noise reduction considering the pad shape of the disc brake system for urban railway vehicles",

abstract = "In this paper, to help reduce the squeal noise produced during the braking of urban railway vehicles, the shape of the disc brake pad was investigated to relieve contact stress. To analyze the disc brake system to identify the source of the squeal noise, a finite element model of the disc brake system was used, including the peripheral brake parts to increase accuracy. A complex eigenvalue analysis was performed to predict squeal noise generation. Verification was carried out using domestic urban railway field test results to confirm the accuracy of the analysis model. A pad shape that relieves contact stress is proposed to reduce squeal noise produced by nonuniform contact between the disc and pad. The results of this study can be utilized for future studies on squeal noise reduction.",

keywords = "Brake disc, Brake pad, Complex eigenvalue analysis, Squeal noise, Urban railway vehicle",

author = "Seoyeon Ahn and Chanhyuk Nam and Sungjin Choi and Daekwon An and Ingi Kim and Kyungsoo Seo and Changhyun Sohn",

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T1 - A study on squeal noise reduction considering the pad shape of the disc brake system for urban railway vehicles

AU - Ahn, Seoyeon

AU - Nam, Chanhyuk

AU - Choi, Sungjin

AU - An, Daekwon

AU - Kim, Ingi

AU - Seo, Kyungsoo

AU - Sohn, Changhyun

PY - 2021/5

Y1 - 2021/5

N2 - In this paper, to help reduce the squeal noise produced during the braking of urban railway vehicles, the shape of the disc brake pad was investigated to relieve contact stress. To analyze the disc brake system to identify the source of the squeal noise, a finite element model of the disc brake system was used, including the peripheral brake parts to increase accuracy. A complex eigenvalue analysis was performed to predict squeal noise generation. Verification was carried out using domestic urban railway field test results to confirm the accuracy of the analysis model. A pad shape that relieves contact stress is proposed to reduce squeal noise produced by nonuniform contact between the disc and pad. The results of this study can be utilized for future studies on squeal noise reduction.

AB - In this paper, to help reduce the squeal noise produced during the braking of urban railway vehicles, the shape of the disc brake pad was investigated to relieve contact stress. To analyze the disc brake system to identify the source of the squeal noise, a finite element model of the disc brake system was used, including the peripheral brake parts to increase accuracy. A complex eigenvalue analysis was performed to predict squeal noise generation. Verification was carried out using domestic urban railway field test results to confirm the accuracy of the analysis model. A pad shape that relieves contact stress is proposed to reduce squeal noise produced by nonuniform contact between the disc and pad. The results of this study can be utilized for future studies on squeal noise reduction.

KW - Brake disc

KW - Brake pad

KW - Complex eigenvalue analysis

KW - Squeal noise

KW - Urban railway vehicle

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A study on squeal noise reduction considering the pad shape of the disc brake system for urban railway vehicles

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Keywords

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