KTX 제동장치의 고유진동수와 스퀼소음 분석

다국어 초록 (Multilingual Abstract)

Brake squeal noise of KTX is very uncomfortable to passengers and workers in stations. A lot of study has been conducted to inquire into the mechanism of the squeal noise. But understanding of the brake squeal noise is still challenging. In this study, we developed a full-scale tester equipped with a KTX mechanical brake unit. And we measured the vibrational characteristics of each component of the brake unit and compared them with frequency response functions of brake squeal noise measured also in the tester. It was found that the brake squeal noise was more closely related to the vibrational characteristics of the brake pads and hangers in friction condition than those of free components.

참고문헌 (Reference)

1 강재영, "회전 디스크 브레이크의 스퀼소음에 대한 선형안정성 연구" 한국소음진동공학회 19 (19): 1092-1098, 2009

2 차정권, "틸팅차량용 휠 제동장치의 스퀼 소음 해석" 한국소음진동공학회 20 (20): 98-105, 2010

3 심현진, "크리깅기법을 이용한 전륜 디스크 브레이크 모델의 스퀼 저감 해석" 한국소음진동공학회 18 (18): 1042-1048, 2008

4 남재현, "캘리퍼 접촉강성을 고려한 브레이크 스퀼 해석" 한국소음진동공학회 23 (23): 717-724, 2013

5 이정환, "캘리퍼 브레이크 스퀼 소음의 불안정성 해석에 관한 연구" 한국소음진동공학회 23 (23): 957-965, 2013

6 권성진, "저소음 브레이크 설계를 위한 스퀼 소음 해석기법 연구" 한국소음진동공학회 16 (16): 830-839, 2006

7 구병춘, "KTX 제동디스크-패드의 상호작용에 의한 불안정 진동모드 해석" 한국철도학회 16 (16): 253-261, 2013

8 Eriksson, M., "Friction Behaviour and Squeal Generation of Disc Brakes at Low Speeds" 215 (215): 1245-1256, 2001

9 Kinkaid, N. M., "Automotive Disc Brake Squeal" 267 (267): 105-166, 2003

10 Sinou, J. J., "A Global Strategy based on Experiments and Simulations for Squeal Prediction on Industrial Railway Brakes" 332 : 5068-5085, 2013