Design Optimization of the Disc Brake for Squeal Noise Reduction

2018 ◽  
Author(s):  
Jintack Park
Keyword(s):  
Noise Reduction ◽  
Design Optimization ◽  
Disc Brake ◽  
Squeal Noise

scholarly journals Design Optimization of Disc Brake for Reducing Squeal Noise by Frequency Sensitivity Analysis

2018 ◽  
Vol 10 (3) ◽  
pp. 263-268
Author(s):  
Bawoo Cha ◽  
◽  
Taeksu Jung ◽  
Yunhwa Hong ◽  
Sungsu Park ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Design Optimization ◽  
Disc Brake ◽  
Frequency Sensitivity ◽  
Squeal Noise

The effect of damping of the disc brake squeal noise

2000 ◽  
Vol 108 (5) ◽  
pp. 2527-2527
Author(s):  
Kihong Shin ◽  
Jae‐Eung Oh ◽  
Wootaek Kim ◽  
Mike Brennan
Keyword(s):  
Disc Brake ◽  
Brake Squeal ◽  
Squeal Noise

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

2014 ◽  
Vol 663 ◽  
pp. 113-118 ◽  
Author(s):  
Ahmad Razimi Mat Lazim ◽  
Abd Rahim Abu Bakar ◽  
Mohamed Kchaou
Keyword(s):  
Friction Material ◽  
Pressure Level ◽  
Material Composition ◽  
Disc Brake ◽  
The Road ◽  
Before And After ◽  
Squeal Noise ◽  
The Relationship ◽  
Brake Noise ◽  
Brake Friction Material

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.

Investigation of Wiper Blade Squeal Noise Reduction Measures

2001 ◽  
Author(s):  
Shinya Goto ◽  
Hiroshi Takahashi ◽  
Takio Oya
Keyword(s):  
Noise Reduction ◽  
Squeal Noise

scholarly journals Squeal Noise Reduction of an Automobile Wiper Blade

2014 ◽  
Vol 24 (5) ◽  
pp. 374-380 ◽  
Author(s):  
Jun-Gi Hong ◽  
Hong-In Won ◽  
Hyoung-Rae Kim ◽  
Min-Jae Yoon ◽  
Jintai Chung
Keyword(s):  
Noise Reduction ◽  
Squeal Noise

Application of a micro-perforated panel absorber to reduce the curve squeal noise of railways

2021 ◽  
Vol 69 (6) ◽  
pp. 507-517
Author(s):  
Woong-yong Lee ◽  
Jae-chul Kim ◽  
Hee-min Noh
Keyword(s):  
Noise Reduction ◽  
Noise Absorption ◽  
Measurement Results ◽  
Absorption Performance ◽  
The Difference ◽  
High Level ◽  
Curve Squeal ◽  
Squeal Noise ◽  
Curve Radius ◽  
Panel Absorber

A micro-perforated panel absorber (MPPA) can reduce noise without the use of sound-absorbing materials. It is made of various materials and is poten- tially applicable in a variety of fields. However, the application of MPPAs is limited owing to the narrow absorption band. In a previous study, to enhance the sound- absorption performance of MPPAs, we proposed a parallel arrangement of multi- layer MPPAs. Based on the results of this previous study, we carried out the present study to apply an MPPA to the curve squeal noise of railways. Squeal noise, which occurs at approximately 500 to 5000 Hz, has high-level peaks. We designed and fabricated an MPPAwith the proposed structure according to the characteris- tics of the squeal noise. The noise reduction was analyzed after an MPPA barrier was installed in the field with a curve radius of 120 m. The reduction in noise level was approximately 17 dB(A) on the first floor and approximately 7 dB(A) on the fourth floor of the building. At 630 to 5000 Hz, the noise reduction level was at least approximately 5 dB(A). To analyze the noise absorption effect of the MPPA bar- rier, a simulation was carried out and subsequently verified by comparing the measurement results with the simulation results. In the simulation, the difference in noise reduction level between the MPPA and reflective barrier was analyzed. The noise reduction level of the MPPA barrier was approximately 7.5 dB(A) higher than that of the reflective barrier on the second and third floors of the build- ing at 630 to 5000 Hz. These results support the viability of MPPA application in re- ducing noise from curve squeal noise.

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