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레일 체결구 결함 검측 모듈의 방열성능 개선을 위한 열 해석
채원규,박영,권삼영,이재형,Chae, Won kyu,Park, Young,Kwan, Sam young,Lee, Jaehyeong 한국전기전자재료학회 2016 전기전자재료학회논문지 Vol.29 No.2
In this paper, various heat dissipation designs for a rail anchoring failure detection module were investigated by a thermal flow analysis. For the detection module with the heat dissipation design on the overall housing surface, an average temperature inside the module was lowered by $25^{\circ}C$ when compared to no heat dissipation design. In addition, an internal heat-flow blocking layer and an heat conduction layer inserted between the LED module and housing case were effective in reducing the temperature in the rail anchoring failure detection, which has a limited space for installation and little air flow. Especially, the temperature near LED module decreased below $55^{\circ}C$ when the optimal heat dissipation design was applied.
박영(Young Park),권삼영(Sam-Young Kwon),조철진(Chul-Jin Cho),채원규(Won Kyu Chae),이재형(Jae-Hyeong Lee) 대한전기학회 2015 전기학회논문지 Vol.64 No.5
Recently, various monitoring systems have been proposed to detect interaction performance between trains and infrastructure, as well as, various techniques to improve the accuracy and performance of such inspection equipment in high speeds. Especially, it is important to predict electric noise of high speed trains due to its effect on detection system accuracy. In this paper, we analyze various types of electrical noise in electric vehicles to improve the accuracy of the detection module of the inspection car. In detail, analysis of electric noise of high speed railway is performed as a function of speed based on field tests that were carried out by HEMU-430X (Highspeed Eletric Multiple Unit - 430 km/h eXperiment).