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A Study on Conceptual Design for Crashworthiness of the Next Generation High-speed EMU  

Kim, Geo-Young (서울산업대학교, 철도전문대학원)
Cho, Hyun-Jik (서울산업대학교, 철도전문대학원)
Koo, Jeong-Seo (서울산업대학교, 철도전문대학원)
Publication Information
Journal of the Korean Society for Railway / v.11, no.3, 2008 , pp. 300-310 More about this Journal
Abstract
Through this study, a conceptual design for the next generation high-speed EMU has been derived to meet the crash worthiness requirements of the Korean rollingstock safety regulation. The crashworthiness regulations require some performance requirements for two heavy collision accident scenarios; a train-to-train collision at the relative speed of 36 km/h, and a collision against a standard deformable obstacle of 15 ton at 110km/h. The complete train set will be composed of 2TC-6M with 13 ton axle load, which is different from KTX with the power car of 17 ton axle load. Using theoretical and numerical analyses, a crashworthy conceptual design was derived in terms of mean crush forces and energy absorptions for principal crushable structures and devices. The derived conceptual design was evaluated and improved using one dimensional dynamic simulations for the bar-spring-damper-mass model. It is shown from the simulation results that the suggested conceptual design can easily satisfy domestic crashworthiness requirements.
Keywords
High-speed EMU; Crashworthiness; Safety Regulation; Rollingstock; Conceptual Design;
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