The invention discloses a satellite flexible structure static deformation compensation method based on piezoelectric actuators, and belongs to the technical field of spacecraft control, and the method comprises the operation steps: installing p piezoelectric actuators at different positions of a flexible structure; static deformation of the flexible structure at m different measurement points is measured; calculating modal coordinates corresponding to the static deformation in the first n orders of modals of the flexible structure, wherein p is greater than n; a piezoelectric actuator is used as an external force excitation source of the flexible structure, and a kinetic equation of the flexible structure is constructed; and calculating the input voltage of each piezoelectric actuator according to the kinetic equation and the modal coordinates, thereby controlling the piezoelectric actuators to compensate the static deformation of the flexible structure. According to the method, accurate and efficient compensation of the static deformation of the satellite flexible structure can be quickly realized.
本发明公开了一种基于压电作动器的卫星柔性结构静态形变补偿方法,属于航天器控制技术领域,该方法的操作步骤包括:将p个压电作动器安装在柔性结构的不同位置;测量柔性结构在m个不同测量点的静态形变;计算静态形变在柔性结构的前n阶模态下对应的模态坐标,其中p>n;以压电作动器作为柔性结构的外界力激励源,构建柔性结构的动力学方程;根据动力学方程以及模态坐标,计算每一个压电作动器的输入电压,由此控制压电作动器对柔性结构的静态形变进行补偿。该方法能够快速实现卫星柔性结构静态形变的精准高效补偿。
Satellite flexible structure static deformation compensation method based on piezoelectric actuator
一种基于压电作动器的卫星柔性结构静态形变补偿方法
2022-12-06
Patent
Electronic Resource
Chinese
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