| 高超声速飞行器滑行段最优弹道的间接算法 |
| |
| 引用本文： | 李佳峰,周浩,陈万春.高超声速飞行器滑行段最优弹道的间接算法[J].飞行力学,2009,27(3). |
| |
| 作者姓名： | 李佳峰 周浩 陈万春 |
| |
| 作者单位： | 北京航空航天大学,宇航学院,北京,100191 |
| |
| 摘 要： | 针对高超声速飞行器滑行段非线性程度高的特点,提出了逐步细分的参数法优化策略,采用序列二次规划(SQP)算法得到了问题的次优解.在此基础上,构建了原系统的等价系统,并给出了两个系统协态变量之间的关系,提出了沿次优弹道的分段打靶法,求解等价系统的两点边值问题(TPBVP) 后,经转化得到了原问题的最优解.优化结果表明,采用逐步细分的优化策略能克服优化算法对初值敏感的缺点,快速稳定地收敛到问题的解,沿次优弹道的分段打靶法更能适应非线性程度高的系统.
|
| 关 键 词： | 高超声速飞行器 弹道优化 最优控制 间接算法 打靶法 |
Indirect Method for the Hypersonic Vehicle Maximum-Glide Problem |
| |
| LI Jia-feng,ZHOU Hao,CHEN Wan-chun.Indirect Method for the Hypersonic Vehicle Maximum-Glide Problem[J].Flight Dynamics,2009,27(3). |
| |
| Authors: | LI Jia-feng ZHOU Hao CHEN Wan-chun |
| |
| Institution: | School of Astronautics;Beijing University of Aeronautics and Astronautics;Beijing 100191;China |
| |
| Abstract: | A parameter method of gradually increased subsections was proposed to fit in with the highly nonlinear characteristics of the hypersonic vehicle maximum-glide problem.Based on the suboptimal results obtained by optimizing with the SQP method,the equivalence system was established and the co-states relation to the original problem was derived;then,a subsection shooting method along the suboptimal trajectery solution was given to explore the TPBVP of the equivalence system,and the optimal solution was compute... |
| |
| Keywords: | hypersonic vehicle trajectory optimization optimal control indirect method shooting method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
