樹脂弾性体の緩衝性能に関する研究-V : 船首の侵入位置と侵入角による反力-侵入量特性の変化

概要

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During the last few years, we are doing the research that checks the characteristics of the protective device by the model experiment and numerical analysis. In the previous paper, we discussed characteristic of the time that the ship penetrated head-on at the center of protective device. These results almost agree with the numerical analyses and experiments. In the present paper, we report about the research result in the time that the ship penetrated with the protective device and change the direction, in other words, penetration position and penetration angle. The following results are obtained. (1) When the penetration position approaches the edge, the reaction force decreases and the slope of a reaction force-bow penetration curve becomes gradual. Also, the reaction force increases and the slope of a reaction force-bow penetration curve becomes steep, when the width of the protective device became enlarged. (2) The reaction force-bow penetration curve in the fan shape protective device becomes the curve that has 2 strange tune points when the side of ship penetrates. (3) Also in either condition these results almost agree with the numerical analyses and experiments.
社団法人日本航海学会の論文
2001-03-25