摘要
沿用Cadewell直接计算极限强度的方法 ,基于有限元的计算思想 ,将结构离散化为由横向构件和垂向构件所组成的结构 ,然后利用船体梁在破损时的应力分布 ,精确计算了船体梁的极限强度 ,并对加筋板受压时可能出现的 5种屈曲形式作了分析 ,给出了考虑这 5种屈曲模式的加筋板极限屈曲强度的公式 ;以某大型散货船为例 ,对船体的极限强度进行了评估 ,结果表明该方法是简便、可靠、实用可行的。
This paper made use of Caldwell′s direct calculation method of the ultimate strength of ship hull girder to develope the formulations to calculate the ultimate strength of stiffened panels under combined in-plane bending and lateral pressure. By comparison with some results from International Ship & Offshore Structures Congress, this simplified method was shown to have engineering accuracy and be able to be used in the phase of design.
出处
《船海工程》
2003年第3期1-4,共4页
Ship & Ocean Engineering
关键词
船舶
船体梁
极限强度
计算方法
应力分布
加筋板
屈曲
ship hull girder
ultimate strength
stress distribution
stiffened plates
collapse
