摘要
以一艘110 m江海直达散货船为研究对象,通过全船有限元直接计算,对货舱区各主要构件的板厚进行优化,使船中0.6L(即0.2L^0.8L)范围内构件的屈服强度、屈曲强度都在IACS《散货船共同结构规范》规定的许用标准之内(或不超过许用标准5%),并且没有较大富余(至少有一种强度余量在±5%以内)。在参考其他优化算法的基础上,推出了适合文中模型的算法,通过计算证明该算法是可行的,收敛速度也比较快。
The whole hull structure strength FE analysis was carried out for a 110m river-to-sea bulk carrier to optimize the plating thickness of the main structures, aiming at that the yield strength and buckle strength in the range of the midship 0. 6L don＇t exceed the allowable standard of the JBP of IACS, without large margin of strength at same time. On the basis of common optimization algorithm, a suitable optimal method was proposed for the direct calculation, which was proved to be feasible with rapid convergency rate.
出处
《船海工程》
北大核心
2008年第1期19-22,共4页
Ship & Ocean Engineering
关键词
净尺寸
直接计算
优化设计
等强度
net-dimension
direct calculation
optimization design
iso-strength
