Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
권호 표지

The DOE Based Robust Design to Reduce the Brake Squeal Noise

실험계획법에 기반한 브레이크 스퀼 노이즈 저감을 위한 강건 설계

  • 권성진 (자동차부품연구원 에너지부품연구센터) ;
  • 김문성 (인지니어스 코리아) ;
  • 이봉현 (자동차부품연구원 에너지부품연구센터) ;
  • 이동원 (자동차부품연구원 에너지부품연구센터) ;
  • 배철용 (자동차부품연구원 에너지부품연구센터) ;
  • 김찬중 (자동차부품연구원 에너지부품연구센터)
  • Published : 2007.03.01
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Abstract

Although there has been substantial research on the squeal noise for the automotive brake system, robust design issues with respect to control factors equivalent to design variables in optimization, noise factors due to system uncertainties, and signal factors designed to accommodate a user-adjustable setting still need to be addressed. For the purpose, the robust design applied to the disk brake system has been investigated by DOE (Design of Experiments) based Taguchi analysis with dynamic characteristics. The specific goal of this methodology is to identify a design with linear signal-response relationship, and variability minimization. The finite element models of the disk brake assembly have been constructed, and the squeal noise problems have been solved by complex eigenvalue analysis. As the practical robust design to reduce the brake squeal noise, material properties of pad, disk, and backplate, thickness and geometry of pad are selected as control factors, material properties of pad and disk, and the contact stiffness have been considered as noise factors, and friction coefficient between pad and disk is chosen as a signal factor. Through the DOE based robust design, the signal-to-noise ratio and the sensitivity for each orthogonal array experiment have been analyzed. Also, it has been proved that the proposed robust design is effective and adequate to reduce the brake squeal noise.

Keywords

References

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