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논문 기본 정보

자료유형
학술저널
저자정보
이현욱 (Korea Railroad Research Institute)
저널정보
한국소음진동공학회 한국소음진동공학회논문집 한국소음진동공학회논문집 제33권 제6호(통권 275호)
발행연도
2023.12
수록면
685 - 690 (6page)
DOI
10.5050/KSNVE.2023.33.6.685

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초록· 키워드

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Wheel-rail interaction-induced vibrations are inherent to railway vehicles and have a significant impact on various phenomena, including adhesion coefficients, rolling noise, and wear. While research on these vibrations has primarily relied on theoretical approaches due to practical limitations, this study bridges the gap by conducting experimental investigations using the twin-disk type wheel-rail contact simulator at the Korea Railroad Research Institute. The experiments involved high-carbon steel specimens with flat-tread wheels and head-profiled rails. Vibration data were collected during the acceleration, slip, and deceleration phases under dry surface conditions. The results indicated that the vibration magnitudes were influenced by the train vehicle dynamics and contact conditions. Specifically, lower slip conditions, which are typical of acceleration and deceleration, produced higher vibrations. A frequency analysis revealed distinct characteristics between rolling/sliding and pure sliding contact zones. Vibrations in the rolling/sliding contact zone peaked at approximately 1250 Hz, while pure sliding contact led to a significant reduction in vibrations at this frequency. The findings of this study provide valuable insights into the relationship between wheel–rail interactions and vibrations in various operational scenarios, contributing to a better understanding of railway vehicle dynamics.

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ABSTRACT
1. 서론
2. 본론
3. 결과 및 토론
4. 결론
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