Spar平台硬舱壳体加强筋布置型式对结构稳定性影响研究  

Study on influence of structural types of stiffeners of spar hard tank shell on structural stability based on API rules

作　　者：谢仲安[1] 张世联[1] 

机构地区：[1]上海交通大学船舶海洋与建筑工程学院,上海200240

出　　处：《海洋工程》2010年第4期105-110,共6页The Ocean Engineering

基　　金：上海市科学技术委员会重大基础课题资助项目(05DJ14001)

摘　　要：基于API BULL2U规范有关圆柱壳体结构稳定性条文,对Spar平台的圆柱型硬舱壳体的骨架布置型式与圆柱壳体结构的稳定性关系进行了初步探讨,编写了圆柱壳体结构稳定性计算分析软件。通过对例题的计算,认为在Spar平台硬舱壳体设置环向加强筋可显著提高第Ⅱ类和第Ⅲ类屈曲的临界应力,但对第Ⅰ类屈曲的临界应力影响不大;当数量超过的临界值时,设置纵向筋可显著提高第Ⅰ类屈曲临界应力,但对第Ⅱ类和第Ⅲ类屈曲模式纵向加强作用有限。While there has been some basic research on Spar platform which is used to exploit the deep-sea resource,the structural design of Spar still stays on the conceptual level in our country.This paper discusses the relationship between the structural type and the stability of the cylindrical hard tank shell based on the rules of API BULL 2U for the structural stability calculation of the cylindrical shell.Some important points are found in a case study,which can be valuable to the further research of Spar hard tank shell structural design.

关 键 词：SPAR平台 API规范 硬舱壳体结构 加强筋 

分 类 号：P752[天文地球—海洋科学]