| 高超声速航天器最优再入大回转轨迹与控制 |
| |
| 引用本文： | 王志刚,袁建平,陈士橹.高超声速航天器最优再入大回转轨迹与控制[J].弹道学报,2005,17(2):60-64. |
| |
| 作者姓名： | 王志刚 袁建平 陈士橹 |
| |
| 作者单位： | 西北工业大学航天工程学院,西安,710072;西北工业大学航天工程学院,西安,710072;西北工业大学航天工程学院,西安,710072 |
| |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| |
| 摘 要： | 研究了飞回型可重复使用航天器以高超声速再入返回的最优大回转轨迹设计和轻制方法,分析了飞回型航天器再入中靠气动力实现轨迹大回转的关键技术,建立了最优再入的数学模型.采用极大值原理和共轭梯度法求解最优再入大回转问题.通过仿真,得到了考虑大回转的最优再入轨迹特性及其控制规律,分析了转弯开始时刻和滚转角对再入中倾斜转弯控制特性的影响规律.探讨了高超声速大回转再入的控制方法.
|
| 关 键 词： | 高超声速航天器 再入 大回转 最优轨迹 |
| 修稿时间： | 2004年7月7日 |
OPTIMAL REENTRY VOLTE-FACE TRAJECTORY AND CONTROL FOR HYPERSONIC SPACECRAFT |
| |
| Wang Zhigang,Yuan Jianping,Chen Shilu.OPTIMAL REENTRY VOLTE-FACE TRAJECTORY AND CONTROL FOR HYPERSONIC SPACECRAFT[J].Journal of Ballistics,2005,17(2):60-64. |
| |
| Authors: | Wang Zhigang Yuan Jianping Chen Shilu |
| |
| Abstract: | Volte-face trajectory and control of fly-back reusable spacecraft in hypersonic reentry are studied. The key technology of volte-face trajectory and control realized by adjusting aerodynamic force is analyzed. Three degree-of-freedom model of glide for spacecraft reentry is funded. Based on maximum principle and conjugate gradient method, the dynamic optimization problem of spacecraft reentry is resolved. With the constraint conditions of glide stage in reentry, optimal control variables, attack angle and roll angle, are gotten to minimize the distance between the stage end point and the launch station by means of simulation. The optimal volte-face trajectory characteristics are investigated. The laws of turning-time and roll angles during reentry acting to volte-face control characteristics are studied. Spacecraft control laws for volte-face reentry motion are explored. |
| |
| Keywords: | hypersonic spacecraft reentry volte-face optimal trajectory |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
