船舶砰击载荷对其结构和航行安全都有重要影响，针对大外飘船舶首部砰击载荷特性开展模型试验研究。分别采用刚体船模和分段弹性船模在拖曳水池完成了不同波高下大外飘船舶首部砰击模型试验，分析船模刚度对首部砰击压力测量结果的影响。在小波高下，刚体船模和分段弹性船模试验得到的砰击压力结果相差不大；在大波高下，刚体船模试验得到的砰击压力比分段弹性船模试验结果偏大。研究分段弹性船模不同位置的砰击压力分布规律，砰击发生时，越靠近船首位置砰击载荷越大，越靠近船底砰击载荷越大。
The slamming load has a significant impact on the structure and navigation safety of ships. Model tests were conducted to study the characteristics of the slamming load of a ship with large bow flare. A rigid ship model and a segmented elastic ship model were used to carry out experiments of the slamming load for a ship with large bow flare at different wave heights in towing tank. The influence of ship model stiffness on the measurement results of slamming pressure was analyzed. When the wave height is small, the difference in slamming pressure results obtained from the rigid body ship model and segmented elastic ship model tests is not significant. When the wave height is high, the slamming pressure obtained from the rigid ship model test is larger than that obtained from the elastic ship model test. The distribution of slamming pressure at different positions of segmented elastic ship models was also studied. When a slamming occurs, the closer to the bow of the ship, the greater the slamming load, and the closer to the bottom of the ship, the greater the slamming load.
2024,46(10): 22-26 收稿日期：2024-03-14
DOI：10.3404/j.issn.1672-7649.2024.10.004
分类号：U661.73
基金项目：国家自然科学基金资助项目（52271335）
作者简介：夏召丹(1985-),男,硕士,研究员,研究方向为船舶耐波性和操纵性
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