多腐蚀球形耐压壳屈曲特性研究  

Buckling characteristics of pressurized multi-corroded spherical shell

作　　者：朱永梅[1] 周祥 林海超 张建[1] ZHU Yong-mei;ZHOU Xiang;LIN Hai-chao;ZHANG Jian(Jiangsu University of Science and Technology,Zhengjiang 212003,China)

机构地区：[1]江苏科技大学,江苏镇江212003

出　　处：《舰船科学技术》2022年第5期7-10,共4页Ship Science and Technology

摘　　要：研究均匀外压下的多腐蚀球形耐压壳的屈曲。将局部腐蚀简化为球壳上的方形等深减薄,分别研究单腐蚀、双腐蚀并立和双腐蚀叠加3种情况下球壳的稳定性,并在此基础上分析双腐蚀叠加的腐蚀面积、深度和腐蚀位置对承载能力的影响规律。结果表明,双腐蚀叠加球壳的屈曲载荷下降了33.4%,且腐蚀面积和深度对承载能力的影响高于腐蚀位置对承载能力的影响。The buckling of a multi-corroded spherical pressure shell was studied under uniform external pressure. The local corrosion was simplified to the square on the shell, and the stability of the shell was studied under the conditions of single corrosion, double corrosion, respectively. On this basis, the effects of corrosion area, depth and corrosion position on the load carrying capacity of spherical shell were analyzed in the double corrosion stack. The results show that the buckling load of the double corrosion stack spherical shell is decreased by 33.4%, and the effect of the corrosion area and depth on the bearing capacity is higher than that of the corrosion location.

关 键 词：腐蚀 球形耐压壳 屈曲 单腐蚀 双腐蚀 

分 类 号：U661.4[交通运输工程—船舶及航道工程]