2417 鉄道車両の衝撃吸収性を考慮した構造最適化(OS7-4 設計と最適化IV-空力特性・積層構造-,OS7 設計と最適化)

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  • 2417 Structural optimization for energy absorption in a train collision

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As compared with automobile, few train design methods for crashworthiness have been proposed. To establish it, we paid attention to double structure composed of train exterior and cabin, and designed train finite element model. We changed the position and thickness of steel plates joining these two constituents, and simulated train collision to a rigid body wall at the speed of 60 kilometer per hour. As a result of the optimization, it was shown that distortional energy in the cabin and maximum deceleration were reduced. We discussed relation of between absorbed energy and maximum deceleration, and introduced new train structure.

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