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可重复使用航天器(RLV)再入过程初期,反作用力控制系统(RCS)是其姿态控制的主要手段,优化RCS控制方法可以降低RCS总冲需求并提高系统动态响应,以提高航天器的任务载荷和任务可靠性。以某跨大气层飞行器RCS为研究对象,给出了RCS模型和3种RCS控制方法,并进行仿真计算分析3种方法在完成特定飞行任务时的姿态控制效果及总冲需求。仿真结果表明:3种方法均能完成飞行器姿态控制,并各有其优缺点。本文的研究将为RLV飞行控制系统控制率设计提供有效参考。
In the early stage of reentry of reusable spacecraft (RLV), reaction control system (RCS) is the main means of attitude control. Optimizing RCS control method can reduce total RCS demand and improve system dynamic response to improve the mission of spacecraft Load and mission reliability. Based on RCS model of an inter-caste aircraft, RCS model and three kinds of RCS control methods are given. The simulation results show that the three methods can achieve the effect of attitude control and the total demand when completing certain missions. The simulation results show that all three methods can accomplish attitude control of the aircraft, and each has its own advantages and disadvantages. The research in this paper will provide an effective reference for the control design of RLV flight control system.