Scholarlink

<p>In this paper, the active nonlinear vibration control of the membrane antenna spacecraft in the absence of actuators and sensors on the antenna structure is studied. The rigid-flexible coupling dynamic equation of the membrane antenna spacecraft is established with the large-amplitude nonlinear vibration considered. Based on the state space model, a state observer is designed to estimate the flexible vibration by using the measured translational and attitude motion of the satellite, and then a linear quadratic regulator (LQR) controller is designed to suppress the nonlinear vibration by only using the control on the hub satellite. Simulation results show that the designed state observer can estimate the flexible vibration accurately; the control force applied on the satellite can only suppress the symmetric vibration modes of the membrane antenna structure; the control moment applied on the satellite can only suppress the asymmetric vibration modes of the membrane antenna structure; and by using the control force and the control moment, the nonlinear vibration of the spacecraft can be suppressed effectively.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Active nonlinear vibration suppression of membrane antenna spacecraft by using the measurement and control on the hub satellite

  • 期刊论文

  • 发表日期：

    2025年5月4日

查看全文
  • Jinlin Liu,
  • Yang Jin,
  • Xiang Liu,
  • Fuxiang Dong,
  • Zheng Gu,
  • Junhui He

摘要

In this paper, the active nonlinear vibration control of the membrane antenna spacecraft in the absence of actuators and sensors on the antenna structure is studied. The rigid-flexible coupling dynamic equation of the membrane antenna spacecraft is established with the large-amplitude nonlinear vibration considered. Based on the state space model, a state observer is designed to estimate the flexible vibration by using the measured translational and attitude motion of the satellite, and then a linear quadratic regulator (LQR) controller is designed to suppress the nonlinear vibration by only using the control on the hub satellite. Simulation results show that the designed state observer can estimate the flexible vibration accurately; the control force applied on the satellite can only suppress the symmetric vibration modes of the membrane antenna structure; the control moment applied on the satellite can only suppress the asymmetric vibration modes of the membrane antenna structure; and by using the control force and the control moment, the nonlinear vibration of the spacecraft can be suppressed effectively.