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2019 | OriginalPaper | Chapter

6. Boundary Control of Beams

Author : Hornsen (HS) Tzou

Published in: Piezoelectric Shells

Publisher: Springer Netherlands

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Abstract

Distributed control of a PVDF laminated cantilever beam was studied in this chapter. The laminated cantilever beam had a distributed piezoelectric sensor and a distributed actuator; both were surface bonded. Closed-loop feedback controls of the beam using the displacement and velocity signals were respectively evaluated and results compared. The results showed that the displacement feedback controls were insignificant and the velocity feedback controls were much more effective. In the velocity feedback control, the system damping increased to an ultimate value and then gradually dropped down as the feedback gain continuously increased. This was caused by the additional constraint imposed by the boundary control moment at the free-end. The free-end boundary condition was gradually changing to a sliding-roller boundary condition as proved by finite element analyses and laboratory experiments.

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Metadata
Title
Boundary Control of Beams
Author
Hornsen (HS) Tzou
Copyright Year
2019
Publisher
Springer Netherlands
DOI
https://doi.org/10.1007/978-94-024-1258-1_6

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