长舱段环肋圆柱壳稳定性加强方式研究  

Study on the Strengthen Method of Stability of Long Cabin Stiffened-Cylindrical Shell

作　　者：阮俊杰 许维军[1] 陈天一 RUAN Jun-jie;XU Wei-jun;CHEN Tian-yi(Institute of Marine Engineering,Harbin Engineering University,Harbin,Heilongjiang150000,China)

机构地区：[1]哈尔滨工程大学船舶工程学院

出　　处：《海洋工程装备与技术》2018年第B10期244-247,共4页Ocean Engineering Equipment and Technology

摘　　要：本论文主要讨论环肋圆柱壳结构处于"非异常特性"和"异常特性"时,采用何种加强方式能有效提高其失稳临界压力。对于"非异常特性"结构,采用非均匀加肋改变肋骨布置形式以期达到提高其失稳临界压力的目的。通过理论法和有限元法,分析潜艇舱段失稳临界压力。比较二者结果,得出非均匀加肋方式能有效提高环肋环肋圆柱壳失稳临界压力。处于"异常特性"的圆柱壳,采用纵横加筋方式并证明能有效地提高其稳定性。This paper is to discuss the strengthen methods which can effectively increase the critical pressure of instability with the unusual features and usual features of ring-stiffened cylindrical shells.For the structure with usual features,non-uniform stiffeners are used to increase the critical pressure for instability.Furthermore,the theoretical method and finite element method are applied to analyze the critical buckling pressure of a submarine cabin.The comparison results showed that the strength method of non-uniform stiffeners can effectively improve the critical pressure of ring-stiffened cylindrical shells,while the combine strength method with longitudinal and circumferential stiffeners was validated to effectively increase the stability of a ring-stiffened cylindrical shell with unusual features.

关 键 词：长舱段环肋圆柱壳 非均匀加肋 纵横加筋 稳定性 

分 类 号：U661.43[交通运输工程—船舶及航道工程]