面向组合动力的空天飞行器动力学特性与控制问题  

Dynamic characteristics and control problems of aerospace vehicle facing combined engine

作　　者：郭建国[1] 梁乐成 郭宗易[1] 胡冠杰 Guo Jianguo;Liang Lecheng;Guo Zongyi;Hu Guanjie(Institute of Precision Guidance and Control,School of Astronautics,Northwestern Polytechnical University,Xi'an 710072,China)

机构地区：[1]西北工业大学航天学院精确制导与控制研究所,西安710072

出　　处：《空天技术》2024年第5期1-13,共13页Aerospace Technology

基　　金：国家自然科学基金(52272404,92271109)。

摘　　要：空天飞行器作为一种新型的跨域飞行器,能够在地面机场和轨道空间之间自由往返。由于必须采用组合动力以实现宽域高性能飞行,其多模态工作、模态转换和一体化构型同时给控制设计带来困难。面向组合动力所引发的特殊控制问题,从模型建立、动力学特性和关键问题三个方面,综述了空天飞行器的控制设计。介绍了主流的组合动力技术方案和机体推进一体化,总结了模态转换技术及其划分准则,给出了组合动力空天飞行器的耦合切换控制模型。从气动/推进和控制耦合、模态转换影响动力学特性、不确定性和控制受限情况方面分析了系统动力学特性,指出了控制设计所面临的难点。梳理了当前有待解决的关键控制问题和研究现状,并展望了未来的发展方向。The aerospace vehicle,as a novel innovative aircraft,facilitates travel between the ground airport and the orbital space.Employing combined engines for broad high-performance capabilities,its multimode characteristics,mode transitions,and integrated configuration present control challenges.The specialties of aerospace vehicle control arising from combined engine are reviewed,including model establishment,dynamic characteristics,and key control problems.The mainstream combined engine scheme and flightpropulsion integration are introduced.The mode transition techniques and their division are summarized,and a coupled switching control model for aerospace vehicles with combined engine is presented.Arising from theaerodynamic/propulsive and control coupling,dynamic changes from mode transitions,uncertainties and control constraints,control difficulties are highlighted.The key control problems and research status are summarized,while the future development direction is foreseen.

关 键 词：组合动力 空天飞行器 姿态控制 模态转换 特性分析 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计]