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남두희(Nam Doohee),권혁빈(Kwon Hyukbin) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
Urban areas face congestion problems that diminish personal mobility and freight-transportation productivity. An increasing number of experts suggest that separating freight traffic from passenger traffic makes sense in terms of economics, the environment, and safety. Some experts suggest that underground freight transportation are the solution. The objective of this paper is to review the potential benefits and limitations of freight pipelines as a viable mode of cargo transport that can alleviate congestion on urban highways.
돌풍 장치를 적용한 고속철도 선로 유동에 대한 실험 연구
노주현(Joohyun Rho),김종용(Jongyong Kim),구요천(Yocheon Ku),윤수환(Suhwan Yun),권혁빈(Hyukbin Kwon),조동현(Donghyun Cho),이동호(Dongho Lee) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
A series of wind tunnel testing have been performed to investigate the flow filed in the vicinity of the track induced by high-speed train. To simulate the unsteady wind gust by train, large scale subsonic wind tunnel of Korea Air Force Academy and wind gust generator with damper control system and grid array have been employed. To verify the simulation of wind gust, unsteady wind velocity history have been measured by pitot tube and 25 port rake static tube and the wind tunnel results been compared with the measurements on the Seoul-Busan high-speed line. For further examination of the flow-filed, hot-wire anemometry has also been used. From these results, the ballast-flying phenomenon was found in the simulated unsteady flow and the conditions which increase a possibility of the ballast-flying was investigated.