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Application of Improved Genetic Algorithm to Optimization Design of Projectile Structure


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Application of Improved Genetic Algorithm to Optimization Design of Projectile Structure
LI Ke-jingZHANG Xiao-bing
School of Power Engineering,NUST,Nanjing 210094,China
genetic algorithms genetic operators projectiles projectile structures optimization
To solve the complex models of projectile structures,an intelligent optimization method is put forward.An improved genetic operator based on real coding is used,including the niche concept and the best-keeping after operation of the genetic operators in each.Hamming distance is used to replace the worse individual of current generation by the best one of the father generation.Taking a projectile’s structure design for example,and comparing the optimization algorithm with the original one,the numerical simulations show that the projectile’s structure has better shape to reduce the drag,with the flying time shortened by 5.3%.The improved genetic algorithm is more effective in realizing the global optimization and promoting evolution efficiency,and has stronger adaptability in solving complex optimization problems.


[ 1] 金志明. 枪炮内弹道学[M ]. 北京: 北京理工大学出版社, 2004. 10- 11.
[ 2] Jiang Z, Takayam a K, Skew s B W. W ave interac tion fo llow ing the em ergence o f a superson ic pro jec tile from a tube[ A] . 17th Interna tiona l Sym po sium on Ballistics [ C ]. M idrand, Sou th Africa: IBC, 1998. 9- 16.
[ 3] Sakamoto K, M atsunnaga K, Fukushim a J, et a.l Num er ica l analysis o f the propagating b last wave in a fir ing range[ A ]. 19th International Symposium on Ba llistics [ C ]. Interlaken, Sw itzer land: IBC, 2001. 289- 296.
[ 4] A ibarow A V, Babayev D B, M ironov A A. Num er ica l simu lation o f 3D m uzzle brake and m issile launcher flow fie ld in the presence o fm ovab le objects[ A]. 20 th Inte rnational Sym posium on Ballistics [ C ] . Orlando, USA: IBC, 2002. 226- 232.
[ 5] 尤国钊, 魏琪. 膛口流场的数值模拟[ J] . 爆炸与冲击, 1989, 9( 3): 254- 260.
[ 6] 马大为. 含复杂波系的膛口非定常流场[ D] . 南京: 南京理工大学图书馆, 1991.
[ 7] 乐贵高, 马大为, 冯勇, 等. 某火炮膛口流场数值仿真[ J]. 兵工学报, 2004, 25( 1): 19- 22.
[ 8] 代淑兰, 许厚谦, 孙磊. 含运动边界的膛口流场数值模拟[ J]. 弹道学报. 2007, 19( 3): 93- 96.
[ 9] 陶文铨. 数值传热学[M ]. 第2版. 西安: 西安交通大学出版社, 2001. 428.


Last Update: 2012-11-19