Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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Experimental Study of Braking Friction and Wear Characteristics of Disk Brake

디스크 브레이크의 제동마찰 및 마멸특성에 관한 실험적 연구

  • 김청균 (홍익대학교 트라이볼로지연구센터) ;
  • 이병관 (홍익대학교 트라이볼로지연구센터) ;
  • 김한구 (홍익대학교 트라이볼로지연구센터)
  • Published : 2006.06.01
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Abstract

This paper presents the braking friction and wears on the rubbing surfaces of a friction pad-disk brake. In this study, four friction disk specimens are sampled from unused and used disks in which are taken from the disk brake system when the friction induced vibration and noise problems have been occurred during a braking period at a running period of 10,000 km, 20,000 km, and 30,000 km in random. The experimental results indicate that the tribological characteristics of an unused disk brake shows equal and stable as a friction coefficient and temperature distributions during a braking friction/wear test period including a total friction mode from the start to running periods. But the used disk brake shows unstable and uneven friction modes between an outside and inside rubbing surfaces of a disk brake in terms of a friction coefficient and wears. This may lead to a friction induced friction vibration and noise problems of a used disk brake.

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References

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