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Mechanics and control of coupled bending and twisting vibration of laminated beams

A shear-deformable beam theory is proposed to model the coupled bending and twisting vibration in laminated beams. Two types of coupling are considered: mass coupling and stiffness coupling. The control of the coupled vibration is accomplished by smart layers incorporated in the host structure. The...

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Published in:Smart materials and structures 1997-04, Vol.6 (2), p.123-133
Main Authors: Aldraihem, Osama J, Wetherhold, Robert C
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Language:English
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description A shear-deformable beam theory is proposed to model the coupled bending and twisting vibration in laminated beams. Two types of coupling are considered: mass coupling and stiffness coupling. The control of the coupled vibration is accomplished by smart layers incorporated in the host structure. The capability of two different types of piezoelectric layers in detecting and supplying bending and twisting motion is addressed in this article. Traditional PZT piezoelectric layers can detect and supply a twisting motion only indirectly, while a PZT/epoxy piezoelectric composite (PZT/Ep) has been shown to sense and actuate both bending and twisting motion. A modal cost and controllability analysis is discussed to compare the performance of the actuation configurations. In a series of examples, the PZT/Ep actuator has provided the best bending-twisting actuation for vibration damping. (Author)
doi_str_mv 10.1088/0964-1726/6/2/001
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source Institute of Physics; Institute of Physics:Jisc Collections:IOP Publishing Journal Archive 1874-1998 (access period 2020 to 2024)
subjects Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Physics
Solid mechanics
Structural and continuum mechanics
Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...)
Vibrations and mechanical waves
title Mechanics and control of coupled bending and twisting vibration of laminated beams
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