五自由度气浮仿真试验台的动力学建模  

Dynamic Modeling for the 5-DoF Air Bearing Spacecraft Simulator

作　　者：许剑[1] 任迪[1] 杨庆俊[1] 包钢[1] 

机构地区：[1]哈尔滨工业大学气动技术中心,哈尔滨150080

出　　处：《宇航学报》2010年第1期60-64,共5页Journal of Astronautics

摘　　要：五自由度气浮仿真试验台是在地面模拟微小卫星空间运动的一种重要仿真设备。通过分析试验台的系统结构,定义世界系、轨道系及本体系三个坐标系,建立了其所模拟微小卫星空间运动的一般情况下轨道动力学和姿态动力学模型,最后根据试验台目前执行机构为冷气推进装置的实际工作情况导出了试验台状态方程,为下一步试验台模拟微小卫星的自治飞行提供了理论基础。The five degrees of freedom air bearing spacecraft simulator is an important device to simulate micro-satellite＇ s autonomous attitude control and orbital maneuver on the ground. By analyzing structure of the simulator, three coordinates are defined. Then the orbital model and attitude model are constructed based on spacecraft attitude dynamics. Because the actuator of the simulator is a cold gas propulsion system, a state equation is derived at last according to actual situation, and this state equation is the foundation of the further research on the simulator.

关 键 词：航天器仿真 气浮轴承 动力学模型 推进系统 状态方程 

分 类 号：V448.25[航空宇航科学与技术—飞行器设计]