Journal ArticleDOI
Nonlinear Control of a Distributed System: Simulation and Experimental Results
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TLDR
In this paper, a nonlinear active vibration damper was developed which uses a spatially distributed piezoelectric actuator, polyvinylidene flouride, to achieve active vibration control of a cantilever beam.Abstract:
A nonlinear active vibration damper has been developed which uses a spatially distributed piezoelectric actuator, polyvinylidene flouride, to achieve active vibration control of a cantilever beam. The control algorithm was derived using Lyapunov’s Second Method. All modes of the beam can be controlled simultaneously if the angular velocity of the tip of the beam is known. A simulation algorithm was developed to predict the effect of the control on the free decay of a single mode. A parameter study for the first mode was performed and compared to experimental results. The active damper has been tested successfully on two different scale structures.read more
Citations
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Journal ArticleDOI
Distributed piezoelectric sensor/actuator design for dynamic measurement/control of distributed parameter systems: A piezoelectric finite element approach
Horn-Sen Tzou,C.I. Tseng +1 more
TL;DR: In this paper, a new structure (shell or plate) containing an integrated distributed piezoelectric sensor and actuator is proposed, where the distributed sensing layer monitors the structural oscillation due to the direct PDE and the distributed actuator layer suppresses the oscillation via the converse PDE.
Journal ArticleDOI
Finite Element Modeling of Piezoelectric Sensors and Actuators
Woo-Seok Hwang,Hyunchul Park +1 more
TL;DR: In this article, a finite element formulation for vibration control of a laminated plate with piezoelectric sensors/actuators is presented, and the static responses of a bimorph beam are calculated.
Journal ArticleDOI
Active control of FGM plates with integrated piezoelectric sensors and actuators
TL;DR: In this paper, a finite element formulation based on the classical laminated plate theory is presented for the shape and vibration control of the functionally graded material (FGM) plates with integrated piezoelectric sensors and actuators.
Journal ArticleDOI
Active vibration control of flexible beams using shape memory actuators
Amr M. Baz,K. Imam,J. McCoy +2 more
TL;DR: In this article, the authors demonstrate the feasibility of utilizing Shape Memory Actuators (SMA) in controlling the flexural vibrations of a flexible cantilevered beam, by using the finite element method, and integrated with the thermal and dynamic characteristics of SMA to develop a mathematical model of the composite beam-actuators system.
Journal ArticleDOI
Smart Materials, Precision Sensors/Actuators, Smart Structures, and Structronic Systems
TL;DR: An overview of present smart materials and their sensor/actuator/structure applications can be found in this paper, where fundamental multifield optomagnetopiezoelectric-thermoelastic behaviors and novel transducer technologies applied to complex multifield problems involving elastic, electric, temperature, magnetic, light, and other interactions are emphasized.
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