Journal ArticleDOI
Vibration control of beams with active constrained layer damping
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In this paper, an analytical methodology is presented to study the active vibration control of beams treated with active constrained layer damping (ACLD), which is based on the conventional theory of structural dynamics.Abstract:
An analytical methodology is presented to study the active vibration control of beams treated with active constrained layer damping (ACLD). This analytical method is based on the conventional theory of structural dynamics. The process of deriving equations is precise and easy to understand. Hamilton's principle with the Rayleigh–Ritz method is used to derive the equation of motion of the beam/ACLD system. By applying an appropriate external control voltage to activate the piezoelectric constraining layer, a negative velocity feedback control strategy is employed to obtain the active damping and effective vibration control. From the numerical results it is seen that the damping performances of the beam can be significantly improved by the ACLD treatment. With the increase of the control gain, the active damping characteristics are also increased. By equally dividing one ACLD patch into two and properly distributing them on the beam, one can obtain better active vibration control results than for the beam with one ACLD patch. The analytical method presented in this paper can be effectively extended to other kinds of structures.read more
Citations
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Active aeroelastic flutter analysis and vibration control of supersonic composite laminated plate
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TL;DR: In this paper, the active aeroelastic flutter analysis and vibration control at the flutter bounds of the supersonic composite laminated plates with the piezoelectric patches are studied.
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Active tuning of vibration and wave propagation in elastic beams with periodically placed piezoelectric actuator/sensor pairs
TL;DR: In this article, a negative proportional feedback control strategy is employed to design the controllers which can provide a positive active stiffness to the beam for a positive feedback control gain, which can increase the stability of the structural system.
Journal ArticleDOI
Active aeroelastic flutter analysis and vibration control of supersonic beams using the piezoelectric actuator/sensor pairs
Zhi-Guang Song,Feng-Ming Li +1 more
TL;DR: In this article, the active aeroelastic flutter characteristics and vibration control of supersonic beams applying the piezoelectric material are studied further using the assumed mode method.
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Active vibration control of conical shells using piezoelectric materials
TL;DR: In this paper, the active vibration control of conical shells is studied using velocity feedback and linear quadratic regulator methods, and the results show that the active vibrational control of a conical shell can be improved by using a velocity feedback mechanism.
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Vibration suppression of composite laminated plate with nonlinear energy sink
TL;DR: In this paper, the NES was used to suppress the severe vibration of composite laminated plate with speed wind loadings in to protect the composite laminate plate from excessive vibration.
References
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Journal ArticleDOI
Modelling of Piezoelectric Actuator Dynamics for Active Structural Control
TL;DR: In this article, the effects of dynamic coupling between a structure and an electrical network through the piezoelectric effect are derived. But the authors focus on the case of a cantilevered beam with surface mounted piezoceramics and indirect voltage and current drive.
Journal ArticleDOI
Sound absorption of a finite flexible micro-perforated panel backed by an air cavity
TL;DR: In this paper, the acoustic absorption of a finite flexible micro-perforated panel backed by an air cavity is studied in detail, and the absorption model is developed based on the modal analysis solution of the classical plate equation coupled with the acoustic wave equation.
Journal ArticleDOI
Vibration control of plates with active constrained layer damping
Amr M. Baz,J. Ro +1 more
TL;DR: In this paper, a finite element model is developed to analyze the dynamics and control of flat plates which are partially treated with multi-patches of active constrained layer damping (ACLD) treatments.
Journal ArticleDOI
Active constrained layer damping of clamped-clamped plate vibrations
C. Chantalakhana,Roger Stanway +1 more
TL;DR: In this article, the authors present a numerical and experimental study of the application of active constrained layer damping to a clamped-clamped plate, where a passive constrained viscoelastic damping layer is augmented with an active scheme employing a PZT patch as the actuator.
Journal ArticleDOI
Spectral element modeling for the beams treated with active constrained layer damping
Usik Lee,Joohong Kim +1 more
TL;DR: In this article, a spectral finite element for the beam with active constrained layer damping (ACLD) is proposed, which is formulated from exact wave solutions of a set of fully coupled dynamic equations of motion.
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