The Analysis of Acceleration Performance Resulted by Weight Variation for HEMU-430X high-speed train the Korea's next-generation electric multiple unit train

차세대 동력분산형 고속열차(HEMU-430X)의 중량변화에 따른 가속능력 분석

  • Received : 2015.03.05
  • Accepted : 2015.06.11
  • Published : 2015.06.30


This study reports the relationship between rollingstock weight and acceleration performance for HEMU-430X, the first electric multiple unit developed in Korea. While maintaining the consumed power, the total train weight was deliberately varied by 2%, by adding and removing weights, and the it was shown that the lighter train was found to have higher acceleration performance and hence better suited for maximum speed tests below the speed of 413km/h. According to the power consumption analysis based on the velocity data collected per 0.1 second, the balanced speed, when the traction force and air resistance become equal, was determined to be 419km/h for HEMU-430X, which is in agreement with tested result. It is expected that the analyses in this study will be utilized for the speed tests in the future.


Acceleration;Balanced speed;Electric multiple unit;Power;Train weight


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Grant : 430km/h급 고속열차 실용화 기술개발

Supported by : 국토교통과학기술진흥원