基于温度场和共同规范的船体结构强度分析  

Hull Structural Strength Analysis Based on Temperature Field and Common Rules

作　　者：马欣 顾金兰[2] 侯海燕 朱彦[2] MA Xin;GU Jinlan;HOU Haiyan;ZHU Yan(Lloyd's Register Classification Society(China)Co.,Ltd.,Shanghai 200001,China;Jiangnan Shipyard(Group)Co.,Ltd.,Shanghai 201913,China)

机构地区：[1]英国劳氏船级社(中国)有限公司,上海200001 [2]江南造船(集团)有限责任公司,上海201913

出　　处：《造船技术》2022年第4期38-42,65,共6页

摘　　要：总结船体结构热应力的计算方法,基于热平衡理论研究某灵便型油船装货温度80℃时的温度场。计算基于内底板设计的许用货物密度。计算强框的屈服和屈曲强度。计算结果显示,叠加协调共同结构规范(Harmonized Common Structural Rules,HCSR)载荷后,温度场引起的热应力会造成舭部结构变形,总应力较大的增加可引起结构屈服和屈曲失效。因此,即使温度小于80℃,也应当在设计时适当考虑温度场影响。研究方法简单快捷,具有重要的工程技术意义。The calculation method of thermal stress of hull structure is summarized,and the temperature field of a handysize tanker at loading temperature of 80℃is studied based on the thermal balance theory.The allowable cargo density based on interior bottom plate design is calculated.The yield strength and buckling strength of strong frame are calculated.The calculation results show that,after the Harmonized Common Structural Rules(HCSR)loads are superimposed,the thermal stress caused by temperature field can cause the bilge structural deformation,and a large increase in total stress can cause the structural yield and buckling failure.Therefore,even if the temperature is less than 80℃,the influence of temperature field should be properly considered in the design.The research method is simple and quick,and is of important engineering significance.

关 键 词：船体结构热应力 温度场 协调共同结构规范 应力和屈曲强度 许用货物密度 

分 类 号：U661.43[交通运输工程—船舶及航道工程]