船体梁极限剪切强度计算方法  

Research on calculating method of ultimate shear strength of ship beam

作　　者：彭营豪[1] 方梦丹 王福花[1] 吴剑国[2] 万琪[1] PENG Ying-hao;FANG Meng-dan;WHANG Fu-hua;WU Jian-guo;WAN Qi(Marine Design and Research Institute of China,Shanghai 200011,China;Zhejiang University of Technology,Hangzhou 310023,China)

机构地区：[1]中国船舶与海洋工程设计研究院,上海200011 [2]浙江工业大学,浙江杭州310023

出　　处：《舰船科学技术》2020年第19期47-50,共4页Ship Science and Technology

摘　　要：船体梁极限剪切强度是指船体梁发生剪切屈曲破坏所能承受的最大的剪力,它不同于一般的结构剪切屈服和板格理想弹性的剪切屈曲计算,很难获得精确的理论解。本文基于非线性有限元数值模拟和理论分析,研究板格、加筋板、船体梁的极限剪切强度特性和计算方法,提出船体梁极限剪切强度的计算公式,并进行了实船验证。结果表明,所提计算方法具有较高的精度。The ultimate shear strength of hull beam refers to the sustained maximum shear to occur shear buckling failure of hull beam.It is different from the shear yield and shear buckling of general structure,and it is difficult to obtain an exact theoretical solution.Based on the nonlinear finite element numerical simulation and theoretical analysis,plate,plate frame and hull girder ultimate shear strength characteristics and calculation method are studied,the formulas of calculating ultimate shear strength of ship hull girder is presented,the actual ship verification is also carried out.The results indicate that the proposed method is appropriate for practical application.

关 键 词：极限剪切强度 船体梁 非线性有限元 

分 类 号：U661.43[交通运输工程—船舶及航道工程]