CSR节点力施加方法对集装箱船总强度评估的适用性研究

以10 000 TEU集装箱船为例,分别采用DNV规范中的节点力法及《油船散货船共同结构规范》(CSR)中的节点力法对其总强度进行计算。对比二者的计算结果,分析CSR节点力施加方法对集装箱船总强度评估的适用性及其优缺点。结果显示,CSR节点力施加方法适用于集装箱船总强度评估,且可有效避免局部应力集中现象。

The Research on Applicability of Nodal Force Method of CSR in Global Strength Evaluation of Container Carriers

NFM (Nodal Force Method) is a method of strength evaluation by applying nodal forces in the FE (Finite Element) model to simulate hull girder loads, which is used for global strength analysis of hull structures in Container Carriers by DNV (DET NORSKE VERITAS). CSR (Common Structure Rules) also proposed NFM which based on shear flow theory. The NFMs required in DNV Rules and CSR are used separately to carry out FE analysis of 10,000 TEU Container Carrier in this paper. By comparing the results of two methods, the applicability and merits/faults of NFM proposed by CSR in Container Carriers are analyzed in this paper. The results show that NFM of CSR is applicable to the global strength evaluation of Container Carriers and the phenomenon of stress concentration is avoided effectively compared with NFM of DNV.