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General Information
Editor-in-chief
Prof. T. Hikmet Karakoc
Anadolu University, Faculty of Aeronautics and Astronautics, Turkey

IJET 2018 Vol.10(3): 263-268 ISSN: 1793-8236
DOI: 10.7763/IJET.2018.V10.1071

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

Bawoo Cha, Taeksu Jung, Yunhwa Hong, Sungsu Park, Cheongmin Kim, Younghoon Hong, and Chongdu Cho
Abstract—As widely noted by researched in last decades, an automotive brake system works by transforming kinetic energy of vehicle into thermal energy, and dissipating the energy through heat conduction. The typical concerns in this kind of system are the noise problems in high frequency which can be figured the vibration characteristics out though modal analysis of the system. As noted in recent research, the mentioned problem is mainly related with the specific modes of components where potentially can be superposed. The separation of these modes should be handled as a crucial design consideration at the initial stage of development. The rotor is a significant contributor of noise and vibration, hence the modal separation is to be considered in designing detail shapes of the component, since the shape of the object generally affects the mode frequencies. In this study, frequency sensitivity analysis through finite element method by design of experimental process has conducted to find the dominant shape factors among the multiple designable figures of the rotor body. Several shape factors are selected as design variables for the implementation of the modal separation process. The contribution of the shape factor to the mode frequency transition has calculated to achieve the optimal design of given component.

Index Terms—Disc brake, squeal noise, taquchi method, modal separation.

Bawoo Cha, Taeksu Jung, Yunhwa Hong, and Chongdu Cho are with the Department of Mechanical Engineering, Inha University, Incheon, 22212, South Korea (e-mail: cdcho@inha.ac.kr).
Cheongmin Kim and Younghoon Hong are with R&D Center of HanYang-Precision, Kimpo, 10048, South Korea

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Cite: Bawoo Cha, Taeksu Jung, Yunhwa Hong, Sungsu Park, Cheongmin Kim, Younghoon Hong, and Chongdu Cho, "Design Optimization of Disc Brake for Reducing Squeal Noise by Frequency Sensitivity Analysis," International Journal of Engineering and Technology vol. 10, no. 3, pp. 263-268, 2018.

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