한국철도학회논문집 (Journal of the Korean Society for Railway)

  • 제11권6호
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  • Pages.575-580
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  • 2008
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  • 1738-6225(pISSN)
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  • 2288-2235(eISSN)
한국철도학회 (The Korean Society for Railway)
권호 표지

KTX 열차풍압 특성을 측정하기 위한 선로변 현장 실험 연구

Experimental Study to Measure the Characteristics of KTX Train Wind Pressure by using Field Test

  • 발행 : 2008.12.30
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초록

고속철도 건설시, 선로중심 간격 및 시공기면폭의 감소는 건설비용의 절감을 가져온다. 그러나, 선로중심 간격의 축소는 열차 주행 풍압의 증가로 여러 가지 안전성 문제를 야기 할 수 있으므로 기술적 검토와 공기역학적 연구가 수행되어야 한다. 본 연구에서는 호남고속철도에 적합한 선로 중심간격을 검토하는데 필요한 차량 주행 안전성을 해석하기 위하여 선로중심 간격 변화로 인한 교행 열차 풍압을 예측하였으며, 이를 선로변 현장 실험 결과를 토대로 공력 영향을 평가하였다.

When constructing a high-speed railroad, the reduction of the distance between track centers and the width of track bed will save the construction cost. However the shortening the distance between track centers may cause the stability problems due to higher wind pressure. Therefore the extensive technical review and aerodynamical study should be performed to determine the adequate distance between track centers. In this study, the impact that the increase in wind pressure due to the change of aerodynamic phenomena with the change of the distance between track centers may have on two trains passing by each other was predicted, and the stability of train operation was analyzed in order to review the distance between track centers suitable to Honam HSR trains. And we estimated the aerodynamical effects by the results of the field test.

키워드

참고문헌

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