本文以某船船首结构为研究对象，基于Fluent与Sesam分别计算了船体砰击压力系数和砰击瞬时船体与波浪之间的相对速度，采用“两步走”的方法对船首底部及外飘处的砰击载荷进行研究。考虑砰击载荷在船首区域的时空分布，将该载荷分区施加在船首结构表面，计算了船首结构在砰击载荷作用下的结构响应。研究发现，在船体纵向方向，越靠近船首的位置，相对入水速度越大；在垂向方向，入水速度呈现先增大后减小的趋势。根据计算结果对船首局部结构进行了优化设计。
In order to do research on ship response induced by slamming load, this paper calculated the slamming coefficient and relative velocity between ship and wave when slamming occur with the software FLUENT and SESAM. "Two-step" method was used to calculate slamming pressure of bow bottom and bow flare. Take into account the distribution of slamming pressure, this paper calculated the ship structure response induced by slamming pressure. This paper revealed that the more close to bow, the higher velocity between ship and wave when slamming occur. Velocity will increase first and then decrease when ship entry water. Optimization design about local bow structure was carried out based on the calculated results.
2019,41(2): 31-35 收稿日期：2018-05-16
DOI：10.3404/j.issn.1672-7649.2019.02.006
分类号：U661.1
基金项目：高技术船舶科研资助项目（工信部联装函[2016]548号）
作者简介：司海龙(1984-),男,博士研究生,研究方向为船舶波浪载荷试验与理论研究
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