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디스크 부식에 의한 DTV 변화에 패드 마모가 미치는 영향 연구
이완규(Wankyu Lee),이강국(Kangkuk Lee),이인호(Inho Lee),현보원(Bowon Hyun),이성주(Seongju Lee) 한국자동차공학회 2019 한국자동차공학회 부문종합 학술대회 Vol.2019 No.5
The rust judder due to the disc corrosion have been known as a serious problem on automobile. Among various sources on the rust judder of vehicle, in this paper, the influence of brake pad wear particles was investigated using rig unit and vehicle with different friction materials. Results showed that the amount of wear particles critically affected to the change of DTV and to make a contact trace on the disc surface after corrosion test. In the case of pad material with the largest wear amount, the vibration of brake pedal and steering after corrosion was strongly felt during all braking stop in contrast with wear life enhanced pad material. Furthermore, the wear amount of disc was related with the linear change of DTV by corrosion. This study shows that the occurrence level of rust judder due to friction material can be predicted at the development stage of friction material.