空间飞行器动力学模型的动态反馈线性化  

ON DYNAMIC FEEDBACK LINEARIZATION OF SPACECRAFT DYNAMICAL MODELS

作　　者：方勃[1] 吴瑶华[1] 黄文虎[1] 

机构地区：[1]哈尔滨工业大学航天工程与力学系

出　　处：《宇航学报》1997年第3期8-13,共6页Journal of Astronautics

摘　　要：本文研究了空间飞行器非线性动力学模型的线性化问题。利用微分几何方法和反馈线性化理论，本文证明了推力方向相对体系不变，即受有“常方向推力”作用限制的空间飞行器的轨道—姿态耦合非线性动力学模型可用二阶动态补偿器／增广状态反馈／增广状态微分同胚变换实现精确线性化，提出了飞行器动态反馈线性化的分步算法，并给出了实现线性化的状态反馈／微分同胚的具体形式。The linearization problem of spacecraft nonlinear dynamical models is studied is this paper By using the methods of differential geometry and of feedback linearization,the fact that the nonlinear dynamical models of spacecrafts with constant direction thrust,which be trajectoryattitude parameters coupling,can be exact linearized by 2 order dynamic compensator/augmented state feedback/augmented diffcomorphism is proved,the step by step algorithm of dynamic feedbak linearization of spacecrafts proposed,the concrete forms of state feedback/disscomorphism realizing linearization is given So the problem of spacecraft control system design is transformed to that of linear systems

关 键 词：空间飞行器 线性化 补偿器 反馈 动力学模型 

分 类 号：V412.4[航空宇航科学与技术—航空宇航推进理论与工程]