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논문 기본 정보

자료유형
학술대회자료
저자정보
저널정보
한국철도학회 한국철도학회 학술발표대회논문집 한국철도학회 2004년도 추계학술대회논문집
발행연도
2004.10
수록면
49 - 54 (6page)

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초록· 키워드

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There are two types of noises in running the rail vehicle. The one is periodic by electric motors, dehumidifiers, and dusting machines. And the other is aperiodic squeal noise by the frictions between the wheels and the rail or the disks and pads. The periodic noises in rail vehicle have been reduced by changing DC motors to AC motors with silencers, and by improving the lubricants. However, almost nothing relating a periodic noise has been studied.
In this paper, the experimental methods were applied to understand phenomena of the squeal noise, which was occurred by the friction variation due to aperiodic stick and slip with low repeatability in the process of dry friction of the disk and the pad when a rail vehicle was being braked. By the experimental acoustic test, it was found the specific frequencies relating the squeal noise. And by modal testing, it was measured the resonant frequencies in the disk and the pad-plate which were the components of the braking system, and in the whole braking system, and it was found the specific frequencies having the effects on the squeal noise.

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ABSTRACT
1. 서론
2. 실험방법 및 장치
3. 실험 결과
4. 결론
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