| 多约束RLV快速再入轨迹规划 |
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| 引用本文： | 何曾彦,许北辰.多约束RLV快速再入轨迹规划[J].飞行力学,2009,27(2). |
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| 作者姓名： | 何曾彦 许北辰 |
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| 作者单位： | 上海宇航系统工程研究所11室,上海,201108 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 研究了一种多约束的重复使用运载器(RLV)三自由度快速再人轨迹规划方法.对于高超声速远程的情况,考虑地球旋转对轨迹规划的精度影响较显著,提出了完整的拟平衡条件;将RLV再入过程划分为两段:初始下降段和滑翔段.首先,将再入走廊转化为控制量的上下边界,在搜索满足航程的控制量时引入近似的纬度和航向角;其次,以终点航程横向偏差为依据迭代搜索改变倾侧方向的时刻;最后,提出航程修正的方法,进一步提高终端落点的精度.通过仿真验证了快速轨迹规划的有效性.
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| 关 键 词： | 重复使用运载器 拟平衡滑翔条件 横向调整 航程修正 |
Rapid Trajectory Reentry Planning for RLV with Multi-Constraints |
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| HE Zeng-yan,XU Bei-chen.Rapid Trajectory Reentry Planning for RLV with Multi-Constraints[J].Flight Dynamics,2009,27(2). |
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| Authors: | HE Zeng-yan XU Bei-chen |
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| Institution: | The Eleventh Department;Shanghai Aerospace System Engineering Institute;Shanghai 201108;China |
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| Abstract: | A methodology is developed for fast design of 3DOF entry trajectories of RLV with multiple constraint conditions.As the earth rotation cannot be safely ignored in long-range hypersonic entry condition,an integrated quasi-equilibrium glide condition is presented.Reentry trajectory is divided into two phases: initial descent phase and glide phase.Reentry corridor is translated into bank angle boundaries.Using the approximate latitude and azimuth angle in searching a bank angle,fitting the downrange.Using the ... |
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| Keywords: | RLV quasi-equilibrium glide conditions lateral regulation range correcting |
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