航空学报 > 2016, Vol. 37 Issue (S1): 99-105   doi: 10.7527/S1000-6893.2016.0170

亚轨道飞行器能量管理段轨迹设计

臧希恒, 胡永太   

  1. 西安飞行自动控制研究所, 西安 710065
  • 收稿日期:2016-04-21 修回日期:2016-05-27 出版日期:2017-01-10 发布日期:2016-06-12
  • 通讯作者: 臧希恒,Tel.:029-88398294,E-mail:zangxiheng@163.com E-mail:zangxiheng@163.com
  • 作者简介:臧希恒,男,博士,工程师。主要研究方向:空天飞行器再入控制、无人机飞控系统总体、无人机空中加油控制。Tel.:029-88398294,E-mail:zangxiheng@163.com;胡永太,男,硕士,研究员。主要研究方向:空天飞行器再入控制、无人机飞控系统总体、平流层飞艇飞行控制。Tel.:029-88398294,E-mail:13991809811@139.com

Trajectory design for terminal area energy management of suborbital reusable launch vehicle

ZANG Xiheng, HU Yongtai   

  1. Xi'an Flight Automatic Control Research Institute, Xi'an 710065, China
  • Received:2016-04-21 Revised:2016-05-27 Online:2017-01-10 Published:2016-06-12

摘要:

亚轨道飞行器(SRLV)通过跟踪特定的轨迹来实现对能量的控制与管理,轨迹设计是能量管理的一项关键技术。深入研究了亚轨道飞行器能量管理段(TAEM)轨迹的设计思想、准则和流程;提出了一种基于待飞距离规划动压剖面的轨迹设计方法,通过调整航向调整段的动压剖面,保证飞行器以亚声速状态进入航向调整段,避免飞行器转弯超调;提出了采用顺风作为轨迹设计的缺省状态,保证飞行器在严重的逆风状态下仍然可以满足着陆窗口约束;通过具体算例进行仿真分析,验证了设计方法的有效性。

关键词: 亚轨道飞行器, 能量管理段, 轨迹设计, 能量走廊, 动压剖面

Abstract:

The energy of suborbital reusable launch vehicle (SRLV) is controlled and managed by flying along a specific path, so the method of trajectory design is a key technology for terminal area energy management (TAEM). The principle, criterion and process of trajectory design methodology for TAEM of SRLV are represented. An approach of reference dynamic pressure profile design based on distance-to-go is proposed. The subsonic state for entering heading alignment phase is ensured by adjusting the dynamic pressure at heading alignment phase, in this way the SRLV turning overshoot is avoided. In order to ensure the TAEM/approach and landing interface constraints to be met in the presence of severe headwinds, the reference dynamic pressure is designed in tailwind conditions as default. Finally, according to the example simulation analysis, the validity of the TAEM trajectory design method is proved.

Key words: suborbital reusable launch vehicle, terminal area energy management, trajectory design, energy corridor, dynamic pressure profile

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