C型独立液货罐焊接接头的疲劳载荷研究  

Study of fatigue loads on welded joints of type C independent liquid cargo tank

作　　者：沈秋彬 吴剑国[1,2] 洪英[3] 牛松[3] SHEN Qiu-Bin WU Jian-guo Hong Ying Niu Song(College of Architectural ＆ Civil Engineering, Zhejiang University of Technology, Hangzhou 310014, China Rules and Technical Center, CCS, Shanghai 200135, China Hangzhou Hongneng Ship Design Co., Ltd., Hangzhou 310023, China)

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310023 [3]中国船级社技术中心,上海200135

出　　处：《船舶》2017年第3期41-47,共7页Ship & Boat

基　　金：中国船级社资助;研究成果将运用于2017版<散装运输液化气体船舶构造与设备规范>

摘　　要：针对C型独立液货罐的特点,提炼出C型独立液货罐的疲劳计算工况;按照IGC规则推导了高周疲劳动压力计算公式,并且与中国船级社《船舶结构疲劳强度指南》中的等效设计波法计算的疲劳载荷作了对比;此外,还讨论了蒸汽压力、温度变化等低周疲劳载荷,解决了C型独立液货罐疲劳计算的关键问题。The work conditions in the fatigue calculation of type C independent cargo tanks are proposed according to the characteristics of type C independent cargo tanks. The calculation formula of the high-cycle fatigue dynamic pressure are deduced according to the IGC rules. The results are compared with the fatigue loads calculated by the equivalent design wave approach in ＂Guidelines for Fatigue Strength of Ship Structure＂ of CCS. It also discusses the low-cycle fatigue loads as the steam pressure and the change of temperature, and solves the key problem for the fatigue calculation of type C independent cargo tank.

关 键 词：气体运输船 C型独立液货罐 焊接接头 疲劳载荷 

分 类 号：U661.4[交通运输工程—船舶及航道工程]