Time-Optimal Coplanar Orbit Transfer Using Genetic-Simplex Algorithm
A hybrid algorithm combining genetic with simplex is proposed to solve time-optimal coplanar orbit transfer in this paper. The trajectory optimization problem comes down to constraint parameter optimization, where the nonlinear two-point boundary value problem is avoided. The genetic algorithm (GA) is used to get global optimal parameters and the simplex algorithm is adopted to improve the ability of local search. Different from traditional methods, the proposed algorithm can achieve rapid convergence, global optimal solution and high precision. Additionally, the absolute thrust efficiency commonly used in Q-law approach is introduced here as a limit gate for deciding when to thrust or to coast in order to reach good performance in saving fuel consumption. The proposed control strategy is validated via numerical simulation examples. The results show that in the case of saving fuel consumptions, the proposed algorithm is effective in minimizing the total transfer time.
Xian Zhang Yuehua Cheng Jiang Bin
College of Automation Engineering,Nanjing University of Aeronautics and Astronautics Academy of Frontier Science of NUAA，Nanjing 210016 College of Automation Engineering,Nanjing University ofAeronautics and Astronautics,Nanjing 210016
国际会议
哈尔滨
英文
312-317
2010-01-08（万方平台首次上网日期，不代表论文的发表时间）