升力式再入的三维再入走廊与再入界面窗口  

Three-Dimensional Entry Flight Corridor and Entry Interface Window about Lifting Reentry

作　　者：李洪波[1] 余梦伦[1] 肖业伦[2] 

机构地区：[1]中国运载火箭技术研究院研究发展中心,北京100076 [2]北京航空航天大学宇航学院,北京100191

出　　处：《宇航学报》2010年第9期2059-2066,共8页Journal of Astronautics

摘　　要：针对升力式再入飞行任务设计对地理信息的需求,提出了以"来路走廊"和"去路走廊"为代表的"三维再入走廊"概念,重新定义了"再入界面窗口"概念。其中,"再入界面窗口"解决了"已知着陆点,估计初始再入点的可行地理区间"问题;"三维再入走廊"则系统、直观地揭示了升力式再入飞行器对"临近空间"多重大气层的覆盖能力及其整体变化趋势。求解算法使用高精度积分律的直接配置非线性规划法,配合无奇异的数学模型,可满足全球到达任务的设计需求。基于美国X-33和Advanced Guidance and Control(AGC)项目的测试任务数据,一系列算例检验了"三维再入走廊"与"再入界面窗口"概念的合理性。"三维再入走廊"有助于工程总体设计、军事指挥和商业空天交通指挥人员对类型化的升力式再入任务进行设计和分析;有助于高层决策人士对升力式再入的机动能力进行系统理解和直观把握。To support the flight mission design with geopolitical restrictions,a three-dimensional entry flight corridor concept is presented to provide essential position information.The 3-D corridor system is constituted of a coming corridor and a going corridor,and is used to show the global coverage capability of lifting reentry vehicles for multiple atmospheric targets in near-space.An entry interface window concept is redefined for the 3-D corridor to answer the question that‘given the landing point,how to evaluate the feasible initial entry area’.A solution technique is developed for those two concepts.To satisfy the needs of global reach,the solution technique includes a set of singularity-free models and a direct optimization method combined with nonlinear programming based on high-order Gauss-Lobatto quadrature rules.Based on the data of X-33 vehicle and mission parameters taken from the NASA Advanced Guidance and Control（AGC） Program,a series of examples proved the 3-D corridor concept and the entry interface window to be reasonable.The 3-D corridor system will be convenient for systemic engineers,future military and aerospace traffic commanders to design and analyze one type or several types of lifting reentry missions.And the corridor system can help decision-makers to understand and grasp the maneuvering capability of lifting reentry vehicle.

关 键 词：升力式再入 三维再入走廊 再入界面窗口 临近空间 全球到达 

分 类 号：V412.44[航空宇航科学与技术—航空宇航推进理论与工程]