Performance of an active control system with piezoelectric actuators

Baz, A.; Poh, S.

doi:10.1016/0022-460x(88)90245-3

Cited by 392 publications

(177 citation statements)

References 8 publications

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“…They also showed that embedded actuators in composites degrade the ultimate tensile strength, but have no effect on the elastic modulus. Baz and Poh [3] investigated methods to optimize the location of piezoelectric actuators on beams to minimize the vibration amplitudes. The numerical results of the problem demonstrated the control for vibrations in large flexible structures.…”

Section: Introductionmentioning

confidence: 99%

Finite element analysis of actively controlled smart plate with patched actuators and sensors

Yasin

Ahmad

Alam

2010

Lat. Am. j. solids struct.

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The active vibration control of smart plate equipped with patched piezoelectric sensors and actuators is presented in this study. An equivalent single layer third order shear deformation theory is employed to model the kinematics of the plate and to obtain the shear strains. The governing equations of motion are derived using extended Hamilton's principle. Linear variation of electric potential across the piezoelectric layers in thickness direction is considered. The electrical variable is discretized by Lagrange interpolation function considering two-noded line element. Undamped natural frequencies and the corresponding mode shapes are obtained by solving the eigen value problem with and without electromechanical coupling. The finite element model in nodal variables are transformed into modal model and then recast into state space. The dynamic model is reduced for further analysis using Hankel norm for designing the controller. The optimal control technique is used to control the vibration of the plate.

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Section: Introductionmentioning

confidence: 99%

Finite element analysis of actively controlled smart plate with patched actuators and sensors

Yasin

Ahmad

Alam

2010

Lat. Am. j. solids struct.

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“…Supposons que le déclencheur est collé parfaitement sur la poutre, la distribution induite du moment M(x,t) entre le déclencheur et la surface de la pièce peut être calculée par l'hypothèse de Kirchoff. La contrainte induite par le déclencheur quand une tension de commande V(x, t) est appliquée est donnée par [38,39]:…”

Section: Y(xt) = Y(x)f(t)unclassified

Étude du phénomène de résonance des pièces complexes en aluminium /

Khadir¹

2007

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“…This is reflected in the different state matrices associated with the systems represented by (18) and (22). Furthermore, as evidenced from (18) and (22) the charge driven state-space equations are expressed in terms of , , , and matrices associated with the voltage-driven case.…”

Section: B State-space Model Of the Composite Systemmentioning

confidence: 99%

Resonant control of structural vibration using charge-driven piezoelectric actuators

Moheimani

Vautier

2004

2004 43rd IEEE Conference on Decision and Control (CDC) (IEEE Cat. No.04CH37601)

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Abstract-Driving piezoelectric actuators by charge, or current rather than voltage is known to significantly reduce the hysteretic nature of these actuators. Although this feature of piezoelectric transducers has been known to the researchers for some time, still voltage amplifiers are being used as the main driving mechanism for piezoelectric devices. This is due to the perceived difficulty in building charge/current amplifiers capable of driving highly capacitive loads such as piezoelectric actuators. Recently, a new charge amplifier has been proposed which is ideal for driving piezoelectric loads used in applications such as active damping of vibration. Consequently, it is now possible to effectively, and accurately control the charge deposited on the electrodes of a piezoelectric transducer, and thereby avoid hysteresis altogether. This paper further investigates properties of piezoelectric transducers driven by charge sources when used with resonant controllers for structural vibration control applications. The paper reports experimental results of a multivariable resonant controller implemented on a piezoelectric laminate cantilever beam.

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Performance of an active control system with piezoelectric actuators

Cited by 392 publications

References 8 publications

Finite element analysis of actively controlled smart plate with patched actuators and sensors

Finite element analysis of actively controlled smart plate with patched actuators and sensors

Étude du phénomène de résonance des pièces complexes en aluminium /

Resonant control of structural vibration using charge-driven piezoelectric actuators

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