船舶遭受其他船船舶撞击会引起严重的后果，典型撞击船船首形式有球鼻首和楔形首，而目前对楔形首撞击下船体结构的耐撞性研究涉及较少。此外，双壳船体结构形式可提升船舶的碰撞安全性。因此，本文开展楔形首撞击下船体双壳结构的耐撞性研究。设计了双壳结构模型试件和楔形首撞头，开展了准静态压载试验。同时开展数值模拟，准确模拟了双壳结构完整损伤过程的撞击力-撞深曲线和最终破坏形式。研究结果表明：楔形首撞击下双壳结构外壳板和内壳板的损伤模式有区别；与内壳板相比，外壳板因撕裂作用能吸收更多的能量；外壳板与隔板间的耦合作用较小。本文研究成果可为船体双壳结构的耐撞性设计和评估提供技术支持。
The consequence of a ship collided by another ship is serious. The bulbous bow and the raked bow are two typical bow shapes equipped in ships. Nevertheless, the research on the crashworthiness of ship structures collided by a raked bow is insufficiency. Besides, the double-hull structure can improve the safety of a ship suffering impact loads.Therefore, the crashworthiness of double-hull ship structures collided by a raked bow is studied in present paper. Quasi-static indentation tests were performed where a scaled double-hull specimen and a wedge indenter were designed. Moreover, numerical simulations were conducted. The numerical results can simulate the resistance-penetration curve and the final damage shape of the double-hull structure in the whole collapse process. Current research demonstrates that the damage mode of the outer shell and the inner shell in the double-hull structure are distinguished. In addition, the outer shell of the double-hull can absorb more energy than that of the inner shell. Furthermore, the coupling effect between the outer hull and the web girder is slight. Present research can provide technical support for the crashworthiness design and assessment of the double-hull ship structure.
2021,43(6): 25-29 收稿日期：2020-06-24
DOI：10.3404/j.issn.1672-7649.2021.06.005
分类号：U661.4
基金项目：国家自然科学基金资助项目(51579110)；武汉轻工大学校立科研资助项目(2020Y09)
作者简介：张敏(1989–)，男，博士，讲师，研究方向为船舶碰撞性能分析
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