한국철도학회:학술대회논문집 (Proceedings of the KSR Conference)
- 한국철도학회 2005년도 추계학술대회 논문집
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- Pages.1241-1247
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- 2005
하이터를 이용한 하부 열차풍 감소에 대한 연구
A Study of Reduction of Underbody Train Gust by a Heighter
초록
The ballast-flying, induced by strong underbody train gust, may damage train underbody, wheel and even cause the safety problems. For this reason, a heighter is being used to prevent the ballast-flying phenomenon through underbody now reduction. In this research, flow field around a heighter is numerically simulated. And the parametric study of various heighter shapes is performed to find out more effective heighter shape. Also the ballast-flying probabilities are calculated for various ballast types and train speeds.
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