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Pole Placement Control of a Smart Flexible Beam

[+] Author Affiliations
V. Sethi, G. Song

University of Akron, Akron, OH

Paper No. IMECE2002-39027, pp. 407-413; 7 pages
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • Adaptive Structures and Materials Systems
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Aerospace Division
  • ISBN: 0-7918-3625-8 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME


This paper concerns active vibration control of a 3.35 meter long composite I-beam that is used in civil structures in a cantilevered configuration by using peizoceramics materials, in particular the PZT (Lead Zirconate Titanate), in the form of patches. These PZT patches are surface-bonded on the I-beam and perform as actuators and sensors. A real-time data acquisition and control system is used to record the experimental data and to implement controllers. To assist control system design, open loop testing and system identification are conducted. A Pole Placement controller is designed and is simulated using the identified model. Simulations show the dramatic increase in damping of the beams which when implemented experimentally corroborates the simulation results. Experimental results verify the simulated results and demonstrate the effectiveness of active control of a civil structure using smart materials.

Copyright © 2002 by ASME



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