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Nonlinear Dynamics

, Volume 76, Issue 3, pp 1737–1751 | Cite as

Dynamics and control of a parallel mechanism for active vibration isolation in space station

  • Jinguo Liu
  • Yangmin Li
  • Yang Zhang
  • Qing Gao
  • Bin Zuo
Original Paper

Abstract

Vibration in the microgravity environment is with the characteristics of low frequency, small amplitude, and randomness. Control method of an active vibration isolation system with parallel mechanism applied to space application, which is effective for disturbance suppression, is proposed. The dynamics model of active vibration isolation system with payload is represented via Kane’s method, thereafter the description in state-space linearization is introduced. System properties and step responses of the systems in open loop are evaluated in detail. Controllability and observability of the system are checked by state-space equations of the system. The state feedback decoupling with double-loop proportional-integral-derivative (PID) control method is adopted as the system controller to design the decoupling matrix and the PID controller. For improving the properties of the system, a control system with H-infinity method is also designed and evaluated. Finally, various types of simulation results are demonstrated to verify the effectiveness of the active vibration damping system proposed.

Keywords

Active vibration isolation Space station Control method PID control \(\hbox {H}_{\infty }\) control 

Notes

Acknowledgments

This research is supported by the National Natural Science Foundation of China (51175494 and 61128008), the State Key Laboratory of Robotics Fund (O8A120S), and Macao Science and Technology Development Fund (108/2012/A3).

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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  • Jinguo Liu
    • 1
  • Yangmin Li
    • 1
    • 2
    • 3
  • Yang Zhang
    • 1
  • Qing Gao
    • 1
    • 4
  • Bin Zuo
    • 1
    • 4
  1. 1.State Key Laboratory of Robotics, Shenyang Institute of AutomationChinese Academy of SciencesShenyang China
  2. 2.Department of Electromechanical EngineeringUniversity of MacauMacaoChina
  3. 3.School of Mechanical EngineeringTianjin University of TechnologyTianjin China
  4. 4.University of the Chinese Academy of SciencesBeijing China

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