计算物理 ›› 2000, Vol. 17 ›› Issue (5): 573-578.

• 论文 • 上一篇    下一篇

应用自适应遗传算法的气动优化设计

王晓鹏, 高正红   

  1. 西北工业大学飞机系, 陕西 西安 710072
  • 收稿日期:1999-06-21 修回日期:1999-09-03 出版日期:2000-09-25 发布日期:2000-09-25
  • 作者简介:王晓鹏(1974~),男,陕西商州,博士生,主要从事飞行器外形优化设计与飞机大攻角数值模拟研究,西北工业大学503教研室.

AERODYNAMIC OPTIMIZATION DESIGN THROUGH SELF-ADAPTIVE GENETIC ALGORITHM

WANG Xiao-peng, GAO Zheng-hong   

  1. Northwestern Polytechnical University, Xi'an 710072, P R China
  • Received:1999-06-21 Revised:1999-09-03 Online:2000-09-25 Published:2000-09-25

摘要: 对简单遗传算法(SGA)加以改进,形成了气动优化设计中的自适应遗传算法(SAGA)。采用实数编码来表示种群中的个体,不需要进行二进制的编码和解码操作,并针对具体问题设计了杂交和变异算子,提高了优化设计的质量和效率。最后分别以翼型和机翼为例,应用自适应遗传算法对跨音速翼型和机翼的升阻比进行优化设计。

关键词: 自适应遗传算法, 欧拉方程, 气动优化设计

Abstract: A simple genetic algorithm(SGA) is modified to form self-adaptive genetic algorithm(SAGA) in aerodynamic optimization design. Real number coding skill is used in the algorithm to represent individuals of population, while binary coding and encoding are not required. In order to improve the quality and efficiency of optimization design, crossover and mutation operators are designed with respect to specified problem. Then self-adaptive genetic algorithm is adopted to maximize lift-to-drag ratio of transonic airfoil and wing as examples. Analysis approves the designed results reasonable.

Key words: self-adaptive genetic algorithm, Euler equations, aerodynamic optimization design

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