A study on energy absorbing members for improvement of train crashworthiness

Hiroshi Yamakawa*, Tokuichiro Oku, Kouji Funatsu, Yasushi Ujita

*この研究の対応する著者

    研究成果: Conference contribution

    3 被引用数 (Scopus)

    抄録

    A series of past works on structural optimizations of train car bodies were done by the authors to improve crashworthiness. There a concept of crushable body similar to that of automobiles was introduced and a simple model with lumped masses and nonlinear springs was adopted to know the macroscopic dynamic behaviors in car collisions. Then the parameters of nonlinear springs in crushable zones to specify the load-deformation curve were determined optimally to improve crashworthiness. It was also found it difficult to realize such optimum properties by making use of ordinary structural members only and additional use of energy absorbing structural members might be inevitable. Thus specified members with various holes are considered in this study to absorb collision energy. The positions and geometric dimensions of the holes are optimally determined to meet the optimum properties of nonlinear springs. The results confirm the effectiveness and applicability of those types of specified members to real train car bodies,

    本文言語English
    ホスト出版物のタイトルCollection of Technical Papers - 10th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference
    ページ650-655
    ページ数6
    1
    出版ステータスPublished - 2004
    イベントCollection of Technical Papers - 10th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference - Albany, NY
    継続期間: 2004 8月 302004 9月 1

    Other

    OtherCollection of Technical Papers - 10th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference
    CityAlbany, NY
    Period04/8/3004/9/1

    ASJC Scopus subject areas

    • 工学(全般)

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