船舶首部结构入水砰击过程研究

摘要

Based on the method of numerical simulation, the slamming process of rigid ship's bow structure is studied. The change of liquid level and the effects of velocity and curvature on the slamming pressure are studied. The dynamicre-sponse such as stress, deformation, and energy absorption of elastic bow structure is studied, and it has very importantsigni-ficance to optimize the ship's bow structure and verify the safety.%对刚性船舶首部结构砰击过程进行仿真研究,分析砰击过程中的液面变化,以及船舶首部结构砰击压力与入水速度、结构曲率的关系.研究弹塑性首部结构入水砰击问题.针对弹塑性首部结构入水砰击过程中各个构件上的应力、变形、吸能等参数进行动态响应分析,对优化船舶首部结构形式和保证结构安全性具有十分重要的研究意义.