超长舱段加筋圆柱壳结构优化设计  

Optimum design of long cabin stiffened cylindrical shell

作　　者：黄加强[1] 

机构地区：[1]海军驻武汉719所军事代表室,武汉430064

出　　处：《船舶力学》2016年第1期137-141,共5页Journal of Ship Mechanics

摘　　要：针对超长舱段加筋圆柱壳结构,分别基于等刚度和变刚度的设计理念,采用遗传算法对其结构进行优化设计研究,探究了不同分段方案以及不同材料参数对其优化设计方案的影响,优化结果表明,当材料的屈服强度较低时,由于受到强度条件限制,分别采用变刚度和等刚度的设计理念优化得到结构方案差异较小;而当采用高强度材料时,稳定性为结构设计的积极约束条件,采用变刚度的设计理念可以得到重量更轻的设计方案;同时,不同的分段方案对优化结果也有一定的影响。Genetic algorithm was utilized to study the optimum design of long cabin stiffened cylindrical shell based on the design concept of equal stiffness and variable stiffness respectively, exploring both the effect of different segmentation schemes and different material parameters on the optimal design. Optimization results show that when the yield strength of material is relatively low, the difference of design parameters between the equal stiffness and variable stiffness is very small because of the constraint of strength; while the yield strength is relatively high, the design concept of variable stiffness can get lighter weight as the stability is the main active constraint. Meanwhile, different segmentation schemes also have some influence on the optimization results.

关 键 词：超长舱段 圆柱壳 遗传算法 优化设计 

分 类 号：U663.7[交通运输工程—船舶及航道工程]