舱内爆炸载荷下箱型梁结构提高舰船极限承载能力的研究

武少波,张世联,于海洋,李聪

振动与冲击 ›› 2018, Vol. 37 ›› Issue (20) : 50-55.

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振动与冲击 ›› 2018, Vol. 37 ›› Issue (20) : 50-55.
论文

舱内爆炸载荷下箱型梁结构提高舰船极限承载能力的研究

  • 武少波,张世联,于海洋,李聪
作者信息 +

A study of improvement on ultimate bearing capacity of a box girder ship subjected to inner explosion

  • WU Shaobo,ZHANG Shilian,YU Haiyang,LI Cong
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文章历史 +

摘要

采用数值模拟方法对含箱型梁结构和等重量常规结构舰船舱段在舱室内部爆炸载荷下的结构变形和剩余极限承载能力进行计算,并进行比较分析;综合考虑设置箱型梁结构导致结构重量增加的影响,对含箱型梁结构提高舰船剩余极限强度的效果进行评价分析。研究结果表明:在不增加主船体纵向构件横剖面积的前提下,箱型梁结构仍能显著提高舰船的剩余极限强度,其提升效果与炸点位置有关。

Abstract

The ultimate bearing capacity of a ship structure subjected to inner explosion is important both in theory and in practice.In this paper, the ultimate bearing capacities of a general structure ship and a box girder structure ship were calculated, with weight increment due to the box girders taken into consideration.Then the effect of the box girder structure in improving structural ultimate bearing capacity was analyzed based on comparison.Simulations of structural responses of the ship subjected to cabin inner explosion were conducted in MSC-DYTRAN, while the calculation of the ultimate bearing capacities was performed through ABUQUS, using  the quasi static loading method.The results indicate that the box girder structure can significantly improve the ultimate bearing capacity of ships under inner explosion, and the effects may vary with the explosion position.

关键词

舱内爆炸 / 箱型梁结构 / 等重量常规结构 / 准静态法 / 剩余极限弯矩

Key words

 inner explosion / box girder structure / common structure / quasi static method / ultimate bearing capacity

引用本文

导出引用
武少波,张世联,于海洋,李聪 . 舱内爆炸载荷下箱型梁结构提高舰船极限承载能力的研究[J]. 振动与冲击, 2018, 37(20): 50-55
WU Shaobo,ZHANG Shilian,YU Haiyang,LI Cong. A study of improvement on ultimate bearing capacity of a box girder ship subjected to inner explosion[J]. Journal of Vibration and Shock, 2018, 37(20): 50-55

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