Failure Study for Tribological Characteristics Including with Pad, Lining and Hub disk in Vehicle Brake System

Abstract

s -The purpose of this paper is to study and analyze the improvement method for the failure examples including the vehicle brake system in actual field. It was verified that the indicator plate of pad wear scratched the brake disk because of wearing after displacement of non-identification parts pad. The caliper of other vehicle was installed with brake system verified the phenomenon produced groove in center point because of one side wear when the pad was not fully contacted with the rub disk by other action surface pressure and pad action condition. It verified that the crack phenomenon fatigue was produced by brake thermal deformation because of decreasing the thickness by grinding to modify the non-uniformed wear of brake disk. It verified that the friction sound was produced by the friction phenomenon because of non-uniformed contact of lining and an alien substance with inner of the drum and lining braking by crack phenomenon with brake drum surface. Keywordspad(패드), lining(라이닝), hub disk(허브 디스크), caliper cylinder(캘리퍼 실린더), wheel cylinder(휠실린더), brake fluid(브레이크 액) 이일권·김청균·조승현 Journal of the KSTLE 알려져 있다[6]. 또한, 운전자가 운전을 하다가 제동을 하였을 때 차체의 진동을 수반하며 소음이 발생되는 저더현상(Judder phenomenon)에 대한 연구도 꾸준히 진행되고 있다[7].