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Equivalent Modeling Technique for 1-D Collision Dynamics Using 3-D Finite Element Analysis of Rollingstock  

Park, Min-Young (서울산업대학교 산업대학원 기계설계학과)
Park, Young-Il (서울산업대학교 기계설계자동화공학부)
Koo, Jeong-Seo (서울산업대학교 철도전문대학원 철도차량시스템공학과)
Publication Information
Journal of the Korean Society for Railway / v.13, no.2, 2010 , pp. 139-146 More about this Journal
Abstract
In this study, a new equivalent modeling technique of rollingstock for 1-D collision dynamics was proposed using crash analysis of 3-D finite element model in some detail. To obtain good simulation results of 1-D dynamic model, the force-deformation curves of crushable structures should be well modelled with crash analysis of 3-D finite element model. Up to now, the force-deformation curves of the crushable structures have been extracted from crash analyses of sectionally partitioned parts of the carbody, and integrated into 1-D dynamic model. However, the results of the 1-D model were not satisfactory in terms of crash accelerations. To improve this problem, the force-deformation curves of the crushable structures were extracted from collision analysis of a simplified train consist in this study. A comparative study applying the suggested technique shows in good agreements in simulation results between two models for KHST.
Keywords
KHST; Finite element analysis; Multi-body dynamic; Collision reference scenario; Crush characteristic;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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