Boundary Control of a Tensioned Elastic Axially Moving String

  • Kim, Chang-Won (Department of Mechanical and Intelligent Systems Engineering, Pusan National University) ;
  • Hong, Keum-Shik (School of Mechanical Engineering, Pusan National University) ;
  • Park, Hahn (Department of Mechanical and Intelligent Systems Engineering, Pusan National University)
  • Published : 2005.06.02

Abstract

In this paper, an active vibration control of a tensioned elastic axially moving string is investigated. The dynamics of the translating string are described by a non-linear partial differential equation coupled with an ordinary differential equation. A time varying control in the form of right boundary transverse motions is proposed in stabilizing the transverse vibrations of the translating continuum. A control law based on Lyapunov's second method is derived. Exponential stability of the closed-loop system is verified. The effectiveness of the proposed controller is shown through simulations.

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