Pole-Placement Vibration Control of a Flexible Composite I-beam using Piezoceramic Sensors and Actuators

Abstract

This article concerns active vibration control of a flexible 3.35-m long composite I-beam that is used in civil structures in a cantilevered configuration by using piezoceramic materials, in particular the PZT (lead zirconate titanate), in the form of patches. These PZT patches are surface-bonded on the I-beam and function 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 the 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 a dramatic increase in damping of the beam. Experimental results verify the simulated results and demonstrate the effectiveness of active control of a civil structure using smart materials.

Keywords

active vibration control smart composite pole-placement control piezoelectric materials

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