FOS control of smart intelligent structures for an hollow composite beam

Volume: 3    Issue: 2

Year of Publication: 2016

Pages: (31-44)

Authors: Mr. Arunkumar G., Dr. T.C.Manjunath

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Abstract

This paper features the modeling, design & control of a smart structure using the concept of fast output sampling feedback control law. Collocated piezoelectric patches are bonded as sensor / actuator to the master structure at a certain finite element location on the beam, i.e., nearby the fixed end of the composite box beam. The beam structure is modeled in state space form using the concept of piezoelectric theory, the beam theory and the Finite Element Method. The beam is subjected to an external disturbance (say, impulse or sine or random excitation). FOS controller is designed for the smart composite box beam. When the designed controller is put in the loop with the plant, the plant performs well and the vibrations are damped out in a quicker time. The performance of the designed controller is thus evaluated for vibration control and the conclusions are drawn, the simulation results show the effect of the designed controller.

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Keywords

FOS, Vibrations, Composite beam, State space theory, Beam theory.