基于改进粒子群算法的大开口甲板板架轻量化设计  

Large opening deck plate frame lightweight design based on improved particle swarm optimization

作　　者：蔡厚平[1] 李明霞[1] 

机构地区：[1]南通航运职业技术学院,江苏南通226010

出　　处：《舰船科学技术》2015年第5期109-113,共5页Ship Science and Technology

基　　金：国家自然科学基金资助项目(11202078)

摘　　要：船舶甲板板架是船体结构的主要组成部分,如何减轻其结构重量是船体结构设计中最为关注的问题之一。本文根据典型甲板结构特点并结合工程经验提出带支柱大开口甲板板架结构轻量化设计数学模型,针对粒子群算法在寻优过程中存在的容易陷入局部极小、收敛速度慢等缺点,结合粒子在实际寻找食物的过程中,大部分可以飞到其预期的最佳位置,而少数粒子由于受不确定因素影响,发生飞行偏离,提出一种改进粒子群算法。基于改进的粒子群优化算法和ANSYS参数化建模技术完成了典型甲板板架结构在强度约束条件和稳定性约束条件下的轻量化设计,获得了最优设计方案。Ship deck plate rack is a major component of the hull structure, how to reduce the weight of the structure of the hull structure design is one of the issues most concern. Based on the structural characteristics of a typical deck and engineering experience combined with the shortcomings of the pillars made large opening deck plate frame structure lightweight design mathematical model for particle swarm optimization process in the presence of easy to fall into local minimum, slow convergence, combined particles in the actual process of looking for food, most of which are expected to be the best place to fly, but a small number of particles due to the influence of uncertain factors, the occurrence flight deviation, an improved particle swarm optimization. Completion of the deck plate frame structure typical lightweight design constraints under strength and stability constraints based on improved particle swarm optimization algorithm and Ansys parametric modeling techniques to obtain the optimal design.

关 键 词：粒子群算法 开口甲板板架 轻量化 参数化建模 

分 类 号：U661[交通运输工程—船舶及航道工程]