In this paper, the thermal analysis of a membrane antenna structure is performed, and then, the rigid-flexible coupling dynamic modeling and control of the membrane-antenna-satellite system are studied with the thermal stress considered. The thermal analysis model of the membrane antenna structure is derived based on the finite element method by discretizing the structure into 1D and 2D thermal elements. Considering the thermal stress, the vibration modes of the membrane antenna structure are obtained, and the rigid-flexible coupling dynamic model of the membrane-antenna-satellite system is derived based on the hybrid coordinate method. To reduce the vibration of the membrane antenna structure caused by the attitude maneuver, the control command is designed based on the component synthesis vibration suppression (CSVS) method. Simulation results show that the dynamic properties of the membrane antenna structure are affected significantly by the space thermal environment, the vibration of the membrane antenna structure can be suppressed effectively by the presented CSVS controller, and the accuracy of the attitude maneuver will be improved significantly by the proposed control strategy.

中文翻译：

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带膜天线卫星的热分析和刚柔耦合动力学

本文首先对膜天线结构进行热分析，然后研究考虑热应力的膜-天线-卫星系统刚柔耦合动力学建模与控制。薄膜天线结构的热分析模型是基于有限元方法，将结构离散为一维和二维热元件。考虑热应力，得到膜天线结构的振动模态，基于混合坐标法推导出膜-天线-卫星系统刚柔耦合动力学模型。为降低膜天线结构因姿态机动引起的振动，设计了基于分量合成振动抑制（CSVS）方法的控制指令。