基于设计波法的全船有限元强度评估  

Strength Assessment of Ship Structures Based on Design Wave Approach

作　　者：崔兵兵 蒋军 从善学 胡罗村 曾佳文 CUI Bingbing;JIANG Jun;CONG Shanxue;HU Luocun;ZENG Jiawen(Shanghai Merchant Ship Design and Research Institute,Shanghai 201203,China)

机构地区：[1]上海船舶研究设计院,上海201203

出　　处：《船舶设计通讯》2022年第1期47-53,共7页Journal of Ship Design

摘　　要：基于谱分析方法和三维势流理论,求解获得波浪诱导载荷幅频响应传递函数,并结合具体的海浪谱和海况散布图得到相应概率水平的波浪诱导载荷长期值。以长期预报最大值所在剖面的垂向弯矩和艏、艉垂向剪力为控制参数,确定设计波各要素。基于有限元直接计算方法,进行设计波下的船体结构强度计算分析,确定结构优化区域。Transfer function operators of wave loads were calculated with the spectrum method and three dimensional potential flow theory.Wave parameters of the highest vertical bending moment and shear force were determined with the specific wave spectrum and wave scatter diagrams.Stress responses of ship structures were calculated based on the finite element direct calculation method.Ship structures were optimized based on the analysis result.

关 键 词：设计波 控制参数 强度分析 结构优化 

分 类 号：U661.43[交通运输工程—船舶及航道工程]