华中科技大学学报：自然科学版2012，Vol.40Issue(3)：49-53,5.
多模块构架式空间可展开天线结构参数优化
Optimization of structural parameters for space deployable truss antenna with multi-module
摘要
Abstract
In order to reduce the launching cost of deployable antenna and improve its deployment stiffness,by taking the mass and the first order natural frequency of deployable truss antenna with multi-module as the objective functions,the structural parameters of truss structure were optimized based on BP（back propagation） neural network and genetic algorithm.The numerical simulation of structural parameters was studied by software ANSYS,and the objective function values corresponding to the design variables were obtained.The training samples and test samples were obtained by orthogonal design.According to the basic idea of BP neural network,prediction model was derived by adjusting the parameters of network model.Sub-goals multiplication and division were adopted to simplify the multi-objective optimization as a single-objective function.The optimization analysis was performed by genetic algorithm,and the design parameters of truss structure were obtained.The results show that the mass is reduced and the deployment stiffness is improved simultaneously.This optimization method provides a foundation for the structural design of deployable truss antenna.关键词
空间可展开天线/支撑桁架/多目标优化/反向传播（BP）神经网络/遗传算法Key words
space deployable antenna/truss structure/multi-objective optimization/BP(back propagation) neural network/genetic algorithm分类
机械制造引用本文复制引用
田大可,郭宏伟,邓宗全,刘荣强..多模块构架式空间可展开天线结构参数优化[J].华中科技大学学报：自然科学版,2012,40(3):49-53,5.基金项目
国家自然科学基金资助项目 （）
高等学校学科创新引智计划资助项目 （）
机器人技术与系统国家重点实验室自主研究课题资助项目 （）
