衝撃非線形問題における感度解析手法の開発(第3報)

概要

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A new approach to a sensitivity analysis in dynamic nonlinear problems has been investigated in this study. The objective of the study is to increase the crash energy absorption of vehicle body structures. In the first and second reports, we investigated the dynamic collapse behavior of elastic columns under axial compression. The relationship between impact velocity and collapse mode was shown. The sensitivity of buckling load matches the gain of collapse load of redesigned columns at slow impact, whereas it does not always match it at fast impact. In this report, the effect of the direction of design domains against the direction of the impact wave is investigated. The effectiveness and the limitation of a sensitivity analysis in dynamic problems are also discussed.
社団法人日本機械学会の論文
1992-10-25