独立C型三体液货罐的应力分析与强度评估方法  

Stress Analysis and Strength Evaluation Method for Star-tri-cylinder Independent Type C Tank

作　　者：吴剑国[1,2] 朱彦彦[1] 洪英[3] 沈秋彬 牛松[3] 

机构地区：[1]浙江工业大学建筑工程学院,杭州310014 [2]杭州弘能船舶设计有限公司,杭州310014 [3]中国船级社规范与技术中心,上海200135

出　　处：《船舶工程》2017年第6期1-5,32,共6页Ship Engineering

摘　　要：新型的独立C型三体液货罐具有容积率高、体量大、支撑不固定、结构与受力复杂等特点,文章在理论分析和大量计算的基础上,提出一套液货船独立C型三体罐应力分析和评估方法,包括液货加速度和内部压力公式、壳体有限元网格尺寸、单元类型及直接强度评估准则,并给出了8 410 m^3星形三体独立C型罐应力分析和强度评估的案例。The new star-tri-cylinder independent type C tank has the characteristics of large volume, big size, unfixed support, complex structures and loads. Based on theoretical analysis and amount of calculations, the paper presents a set of the stress analysis and evaluation approach for the star-tri-cylinder independent type C tank of liquid cargotank, including the formula of acceleration and internal pressure loads of liquid cargo, types of cylinder shell FE mesh sizes and element types, as well as the corresponding direct strength assessment criteria. The case study of stress analysis and strength evaluation of the 8 410 ms star-tri-cylinder independent type C tank is also shown.

关 键 词：独立C型三体罐 应力分析 强度评估 网格单元 有限元 

分 类 号：U661.43[交通运输工程—船舶及航道工程]