RLV末端能量管理段三维鲁棒制导方法  

3D Robust Guidance for a RLV During TAEM Phase

作　　者：穆凌霞 余翔 张友民[3] MU Ling-xia;YU Xiang;ZHANG You-min(Shannxi Key Laboratory of Complex System Control and Intelligent Information Processing,Xi’an University of Technology,Xi’an 710048,China;School of Automation Science and Electrical Engineering,Beihang University,Beijing 100191,China;Department of Mechanical,Industrial&Aerospace Engineering,Concordia University,Montreal H3G 1M8,Canada)

机构地区：[1]西安理工大学陕西省复杂系统控制与智能信息处理重点实验室,西安710048 [2]北京航空航天大学自动化科学与电气学院,北京100191 [3]康考迪亚大学机械、工业与航空工程系,蒙特利尔H3G 1M8

出　　处：《宇航学报》2021年第9期1162-1171,共10页Journal of Astronautics

基　　金：国家自然科学基金(61903297,61833013,61973012);陕西省自然科学基础研究计划(2019JQ-751);陕西省教育厅自然科学专项项目(19JK0569)。

摘　　要：针对传统可重复使用运载器(RLV)末端能量管理段(TAEM)制导方法在精度和实时性方面的不足,提出了一种三维鲁棒制导方法,提高扰动情形下的返回精度。首先,转换RLV时域制导模型为以高度为自变量的等效模型,设计基于滑模控制理论的制导算法,根据运载器当前状态生成满足动力学、末端和动压约束的状态轨线及制导指令;输入指令至RLV时域制导模型,一个制导周期后根据当前飞行状态更新制导指令,抵抗气动、大气及质量偏差等扰动。标称和扰动两种情形下的仿真验证了制导方法的性能。Due to the traditional terminal area energy management(TAEM)guidance methods for a reusable launch vehicle(RLV)showing low precision and poor robustness,a 3D guidance strategy with real-time correction is proposed for improving the guidance performance in terms of precision and robustness.Firstly,the RLV time-domain-based guidance model is transformed to the altitude-domain-based dynamic equations.A sliding mode guidance law is designed to generate the RLV trajectories and guidance commands in the presence of hybrid constraints.The guidance command is then regarded as the input of the time-domain-based guidance model.After a guidance period,the command is updated according to the current flight states against the influences of the disturbances on aerodynamic,atmosphere,and vehicle mass.Simulation results show good performance of the proposed guidance method.

关 键 词：可重复使用运载器(RLV) 末端能量管理段 三维鲁棒制导 滑模制导 

分 类 号：V475[航空宇航科学与技术—飞行器设计]