2103 三次元効果を考慮した最適化手法による高速鉄道車両のトンネル微気圧波低減(高速化の技術,OS2 交通・物流システムの高速化・利便性・快適性の向上)

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概要

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• The shape design method presented in this study is based on the knowledge of spatial non-uniformity of the response due to specific areal blockage by the vehicle. The method consists of an efficient numerical prediction of the pressure wave and its implementation into a shape optimization technique. A series of transient finite element flow simulations of the tunnel entry is conducted to collect the information of pressure response of the tunnel. Several suggestions for effective reduction of the pressure gradient are deduced from this information. The pressure wave generated by a train is approximated by a composition of the pressure response of the tunnel incorporated with non-linear correction. The shape optimization also utilizes the variation of the pressure response. The pressure wave generated by the optimized shape is verified by the direct simulation and it exhibits a good reduction of the pressure gradient.

• 2007-12-12

著者

• 佐藤 哲郎

  日本車両

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• 2103 三次元効果を考慮した最適化手法による高速鉄道車両のトンネル微気圧波低減(高速化の技術,OS2 交通・物流システムの高速化・利便性・快適性の向上)
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