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Adaptive actuator fault compensation control for a rigid-flexible manipulator with ODEs-PDEs model

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  • Fangfei Cao
  • Jinkun Liu

Abstract

In this paper, the actuator fault problem is studied for a two-link rigid-flexible manipulator system in the presence of boundary disturbance and state constraint. The system consists of a rigid beam, a flexible beam and a payload at the end, which are described by hybrid ordinary differential equations–partial differential equations. The novel controller includes a proportional-derivative feedback structure, a disturbance observer and a fault-tolerant algorithm, which can regulate the joint positions and eliminate vibration of flexible beam, on circumstance of boundary disturbance and actuator fault. With the help of Barrier Lyapunov Function, the states will not be violated. It is proved that the closed-loop system has asymptotic stability by LaSalle Invariance Principle. Simulations are provided to demonstrate the effectiveness of the proposed controller.

Suggested Citation

  • Fangfei Cao & Jinkun Liu, 2018. "Adaptive actuator fault compensation control for a rigid-flexible manipulator with ODEs-PDEs model," International Journal of Systems Science, Taylor & Francis Journals, vol. 49(8), pages 1748-1759, June.
    • Handle: RePEc:taf:tsysxx:v:49:y:2018:i:8:p:1748-1759
    DOI: 10.1080/00207721.2018.1479002
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