한국철도학회:학술대회논문집 (Proceedings of the KSR Conference)
- 한국철도학회 2006년도 추계학술대회 논문집
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- Pages.1259-1263
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- 2006
고속열차의 차간 공간에서 발생하는 공력소음의 특성
Characteristics of the aero-acoustic noise generated from the inter-coach spacing of a high-speed train
- 발행 : 2006.11.09
초록
The inter-coach spacing is one of the most important sources of the aero-acoustic noise of a high-speed train. When fluid at high speed flows over an open cavity, such as the inter-coach spacing, large acoustic pressure fields inside the cavity are produced by fluid/structure interactions at the downstream end of the cavity. In this study experiments were performed to investigate the characteristics the aero-acoustic noise generation from the inter-coach spacing of a high-speed train. Results of the measurement confirmed that the noise generated from the gap between mud-flaps are strongly dependent on the size of the gap.
키워드