Reentry trajectory optimization design for lunar return through coevolutionary algorithm
-
摘要: 在考虑热流、过载、动压以及开伞点参数等多种约束条件下,针对低升阻比返回舱月面返回再入轨迹优化设计问题,基于分段线性倾侧角参数化策略,提出了采用合作进化算法进行参数优化的策略来实现再入轨迹的快速高精度优化设计.首先采用以能量为自变量的分段线性倾侧角控制参数化策略,将连续最优控制问题转化为有限维参数寻优问题,然后基于逃逸粒子群算法和自适应差分进化算法的合作进化算法求解该问题.数值仿真验证了倾侧角参数化策略的正确性,对比试验分析表明合作进化算法较传统进化算法有更快的收敛速度和更高的优化精度的综合性能,更加适合月面返回再入轨迹优化设计问题的求解.Abstract: Reentry trajectory optimization with multiple constraints on g-load, dynamic pressure, heat flux on stagnation point of craft and parachute deployment position was studied for low-lift-to-drag lunar return vehicle, and a novel coevolutionary algorithm was presented to solve the parameters optimization problem based on the piece-wise linear bank modulation strategy. Firstly, a piece-wise linear bank modulation versus energy policy was introduced to convert the continuous optimal problem into a finite-dimensional parameter optimization problem. Then, the coevolutionary algorithm consists of escapable particle swarm optimization algorithm and adaptive differential evolution algorithm was employed to solve it. Numerical simulation demonstrates the feasibility of the adopted control parameterization strategy. A performance comparative case was carried out. The coevolutionary algorithm proves to be effective with great accuracy and is well suited for reentry trajectory optimal profile design.
-
[1] Pontani M, Conway B A.Particle swarm optimization applied to space trajectories [J].Journal of Guidance,Control,and Dynamics,2010,33(5):1429-1441 [2] 王俊波,宋勋, 宋剑爽,等.高超声速再入滑翔飞行器多约束轨迹快速优化[J].北京航空航天大学学报,2011,37(7):777-781 Wang Junbo,Song Xun,Song Jianshuang,et al.Rapid trajectory optimization for hypersonic reentry vehicles with multi-constraints [J].Journal of Beijing University of Aeronautics and Astronautics,2011,37(7):777-781(in Chinese) [3] 王银,陆宇平, 张崇峰.月球返回舱跳跃再入弹道特性分析与优化设计[J].南京航空航天大学学报,2010,42(1):21-24 Wang Yin,Lu Yuping,Zhang Chongfeng.Skip-entry trajectory characteristic analysis and optimal design for lunar return vehicle [J].Journal of Nanjing University of Aeronautics & Astronautics,2010,42(1):21-24(in Chinese) [4] 王银,陆宇平, 张崇峰.带配平翼月球返回舱跳跃再入轨迹优化设计[J].宇航学报,2011,32(2):285-289 Wang Yin,Lu Yuping,Zhang Chongfeng.Skip-entry trajectory optimization design for lunar return vehicle with trim-flaps[J].Journal of Astronautics,2011,32(2):285-289(in Chinese) [5] 姚寅伟, 李华滨.基于Gauss伪谱法的高超声速飞行器多约束三维再入轨迹优化[J].航天控制,2012,30(2):33-38,45 Yao Yinwei,Li Huabin.The generation of three-dimensional constrained entry trajectories for hypersonic vehicle based on the Gauss pseudospectral method [J].Aerospace Control,2012, 30(2): 33-38,45(in Chinese) [6] Brunner C W, Lu P.Skip entry trajectory planning and guidance [J].Journal of Guidance,Control,and Dynamics,2008,31(5):1210-1219 [7] Vernis P, Spreng F,Gelly G,et al.Accurate skip-entry guidance for low to medium L/D spacecrafts return missions requiring high range capabilities[C]//AIAA Guidance,Navigation,and Control Conference.Reston,VA:AIAA,2011:6649-1-6649-15 [8] Kennedy J, Eberhart R.Particle swarm optimization[C]//Proceedings of the IEEE International Conference on Neural Networks.Piscataway,NJ:IEEE,1995:1942-1948 [9] Storn R, Price K.Differential evolution:a simple and efficient adaptive scheme for global optimization over continuous space[R].TR-95-012,1995 [10] Brunner C W. Skip entry trajectory planning and guidance[D].Ames,Iowa:Iowa State University,2008
点击查看大图
计量
- 文章访问数: 1080
- HTML全文浏览量: 32
- PDF下载量: 522
- 被引次数: 0