扁平艉型砰击载荷试验研究及结构动态响应分析  

Research on Slamming Load and Dynamic Structural Response of the Ship with Flat Stern Lines Based on Model Test

作　　者：李聪[1] 田喜民[1] 曾文源[1] 赵尚辉[1] LI Cong;TIAN Ximin;ZENG Wenyuan;ZHAO Shanghui(Marine Design and Research Institute of China,Shanghai 200011,China)

机构地区：[1]中国船舶及海洋工程设计研究院,上海200011

出　　处：《中国造船》2018年第1期47-55,共9页Shipbuilding of China

摘　　要：针对扁平艉型船舶的艉砰击现象进行了分段模型试验。测量剖面上的垂向弯矩响应,通过频域变换获取砰击弯矩成分,并分析艉砰击对船体梁合成弯矩的影响。基于模型试验测得的砰击压力数据,结合数值仿真计算,获得的压力的时空分布和计算艉部结构在砰击载荷作用下的动态应力响应。研究方法对扁平艉型船舶艉砰击的安全评估具有借鉴意义。Sectional model tests were carried out to research on stern slamming of a ship with flat stern lines.Through the transformation into the frequency domain,response of vertical bending moment on measured sections and slamming load on the stern was obtained,and influence of composite bending moment on the ship girder was analyzed.Based on the data of slamming pressure from tests and combined with numerical calculation,response of the dynamic stress of the stern structure was calculated.The proposed method can be applied in the evaluation of the safety on similar ships'structures under wave slamming load on the stern.

关 键 词：艉砰击 分段模型试验 砰击附加弯矩 应力响应 

分 类 号：U661.43[交通运输工程—船舶及航道工程]