中国空间科学技术

›› 2011, Vol. 31 ›› Issue (5): 76-83.doi: 10.3780/j.issn.1000-758X.2011.05.011

• 技术交流 • 上一篇    

临近空间飞艇外形优化设计与仿真

 杨燕初1,2, 王生1, 顾逸东1, 李英堂1, 苗景刚1   

  1. （1 中国科学院光电研究院，北京  100094)(2 中国科学院研究生院，北京  100049）
  • 收稿日期:2010-12-27 修回日期:2011-01-26 出版日期:2011-10-25 发布日期:2011-10-25
  • 作者简介:杨燕初 1982年生，2007年获中国科学院空间科学与应用研究中心飞行器设计专业硕士学位，现为中国科学院光电研究院计算机应用方向博士研究生，工程师。研究领域为浮空飞行器总体与结构设计。
  • 基金资助:

    国家863计划（2007AA705101），中科院知识创新重大项目（平流层试验飞艇研制与集成演示）

Shape Optimization Design and Simulation of Near Space Airship

 YANG  Yan-Chu1,2, WANG  Sheng1, GU  Yi-Dong1, LI  Ying-Tang1, MIAO  Jing-Gang1   

  1. （1 Academy of Optoelectronics, Chinese Academy of Sciences, Beijing 100094）
    （2 Graduate University of Chinese Academy of Sciences, Beijing 100049）
  • Received:2010-12-27 Revised:2011-01-26 Published:2011-10-25 Online:2011-10-25

PDF (PC)

1769

被引次数

2

摘要： 以临近空间飞艇为对象，针对传统外形设计方法中存在的问题，提出了新的优化设计方法，搭建了流程框架，编制了优化程序。首先研究了遗传算法及多学科设计理论，进而在此基础上建立了飞艇阻力、体面比、应力模型，利用多学科设计理念对飞艇气动、结构、强度进行了一体化设计。其次将遗传算法引入到优化设计当中，并利用Matlab和Fluent开展了联合仿真研究。最后结合实际应用需求进行了算例分析，验证了该方法的可行性和效果。

关键词: 遗传算法, 多学科设计优化, 外形优化, 联合仿真, 平流层, 空间飞艇

Abstract: A new multidisciplinary design optimization(MDO) method based on genetic algorithm was developed. The theoretic framework was built and an optimization program was designed. Firstly, genetic algorithm and MDO method were studied, and the resistance model, volume suface  ratio model, stress model were built, and the MDO method integrating aerodynamics, structure, and strength was introduced. Secondly, the genetic algorithm was used to optimize the airship shape which concluded a composite objective function, and a co-simulation method was carried out by the Matlab and Fluent. Finally, a practical case was provided and the feasibility of the method was demonstrated.

Key words: Genetic algorithm, Multidisciplinary design optimization, Shape optimization, Co-simulation, Stratosphere, Space airship