Analysis of aerodynamic characteristics and trajectory optimization of variable-sweep wing guided rockets

被引：0
|
作者：
Chen J. [1 ]
Wang Y. [1 ]
Yu C. [2 ]
Wu W. [1 ]
He X. [3 ]
机构：
[1] School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing
[2] Sino-French Engineer College, Nanjing University of Science and Technology, Nanjing
[3] National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing
来源：
Zhongguo Guanxing Jishu Xuebao/Journal of Chinese Inertial Technology | 2023年 / 31卷 / 12期
关键词：
aerodynamic characteristics; pseudospectral method; rocket; trajectory optimization; variable-sweep wing;
D O I：
10.13695/j.cnki.12-1222/o3.2023.12.009
中图分类号：
学科分类号：
摘要：
To enhance the range of guided rocket projectile, the aerodynamic characteristics of variable-sweep wing guided rocket projectile are analyzed, and the rocket projectile’s trajectory is optimized by adding the dynamic change strategy of wing sweep angle. The aerodynamic parameters of rocket projectile at various sweep angles are calculated by computational fluid dynamics (CFD) simulation, and the aerodynamic characteristics are analyzed to summarize deformation patterns. An hp-adaptive Radau pseudospectral method is employed to optimize the rocket projectile's trajectory. Considering the wing deformation strategy of the rocket projectile, the variation in sweep angle is incorporated into the calculations to compare and analyze the glide trajectory of both fixed-wing and variable-sweep wing rocket projectiles at different sweep angles. The simulation results indicate that variable-sweep wing guided rocket projectiles range can be increased by 10.8% to 34.6% compared with fixed-wing rocket projectiles, which has a certain theoretical significance for enhancing the projectile's range. © 2023 Editorial Department of Journal of Chinese Inertial Technology. All rights reserved.
引用
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页码：1228 / 1235
页数：7
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