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Elastic Beam Vibration Control With Phase-Locked Loop

[+] Author Affiliations
Guilherme Cano Lopes, Átila Madureira Bueno

Univ Estadual Paulista - UNESP, Sorocaba, SP, Brazil

José Manoel Balthazar

Univ Estadual Paulista - UNESP, Bauru, SP, Brazil

Paper No. IMECE2014-36647, pp. V04BT04A026; 8 pages
  • ASME 2014 International Mechanical Engineering Congress and Exposition
  • Volume 4B: Dynamics, Vibration, and Control
  • Montreal, Quebec, Canada, November 14–20, 2014
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4648-3
  • Copyright © 2014 by ASME


The Phase-Locked Loop (PLL) is a closed-loop control system that synchronizes a local oscillator to an oscillatory incoming signal. The PLL plays important roles in communication, computation and control systems, allowing the correct flow of information by efficiently generating and distributing clock reference signals. PLLs are also applied in motor speed control and in atomic force microscopy. Nevertheless, PLLs are inherently nonlinear devices, and behaviors such as bifurcations and chaos may arise. In this paper, the vibration control of an elastic beam is performed by a PLL control structure. Additionally, different designs for the PLL-beam control system are discussed.

Copyright © 2014 by ASME



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