Analysis and Evaluation of the Brake NVH Characteristics for the Fusion-type Friction Material

퓨전형 마찰재의 브레이크 NVH 특성 해석 및 평가

  • 권성진 (자동차부품연구원 에너지시스템연구센터) ;
  • 배철용 (자동차부품연구원 에너지시스템연구센터) ;
  • 김찬중 (자동차부품연구원 에너지시스템연구센터) ;
  • 김완수 (자동차부품연구원 에너지시스템연구센터) ;
  • 이동원 (자동차부품연구원 에너지시스템연구센터) ;
  • 이봉현 (자동차부품연구원 에너지시스템연구센터) ;
  • 서병연 (현대모비스 기술연구소) ;
  • 정광기 (상신브레이크 기술연구소)
  • Published : 2008.11.20

Abstract

Nowadays, noise and vibration phenomena of a disc brake system have been given various names that provide some definitions of sound and vibration emitted such as grind, grunt, moan, squeak, squeal, judder and wire brush. The most common and annoying noise of a disc brake system is squeal noise. It is defined as noise whose frequency content is 1 kHz and higher with excessively high and irrigating sound pressure levels. In this paper, the noise and vibration characteristics of a disc brake system have been investigated to develop the fusion-type friction material, which overcomes the low steel and non-asbestos organic friction materials. For the purpose, both experimental evaluation and complex eigenvalue analysis have been carried out.

Keywords