大跨度加筋板架优化设计研究  

Optimization design of large-span stiffened panel

作　　者：乔迟 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：《舰船科学技术》2015年第8期23-26,30,共5页Ship Science and Technology

摘　　要：在大跨度双层甲板设计中,横向舱壁起到了代替强横梁支撑甲板板架的作用,相比于单层甲板设计可以减小主要构件的腹板高度。本文将横向舱壁简化为两端简支的大跨度加筋板架,使用有限元方法研究其在均布载荷作用下的响应。分析了板厚、扶强材尺寸和间距对结构强度和稳定性的影响,并讨论了以结构重量最小为目标的优化设计方法。In the design of large-span double deck,transverse bulkhead takes the place of web frame to supportdeck grillage,so that web height of primary members can be reduced,comparing to single deck design. In this paper,the transverse bulkhead was simplified as a simple-supported large-span stiffened panel,and its response under uniform pressure was obtained through finite element analysis. The impact of plate thickness,stiffener size and spacing on the strength and stability characteristics of stiffened panel was analyzed. Furthermore,the optimization design for minimum structural weight was discussed.

关 键 词：大跨度 加筋板架 屈曲 优化设计 

分 类 号：U663.4[交通运输工程—船舶及航道工程]