Shape Control of Composite Plates and Shells with Embedded Actuators. I. Voltages Specified

In this paper, the problem of vibration suppression of a smart composite plate with bonded piezoelectric patches is considered. A higher order plate model is used for finite element modeling of the plate and the PID controller is used to generate control voltage command to the piezo actuators from the piezo sensors data. Derived formulation and the control algorithm is implemented in a finite element (FE) code and the FE modeling results are verified using available results of previous studies. The effect of control gain on the vibration suppression characteristics is studied. Furthermore, since FE modeling reduces the order of the real problem, the problem of un-modeled residual modes on the so-called spillover effect is investigated.

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“…2. Good agreement is seen between the numerical results of current study with the experimental results of (Koconis et al 1994). …”

Section: Verification Studiessupporting

confidence: 83%

“…The material properties of the Kynar layer are given in (Shakeri et al 2009). The effect of applied voltage on the deflection of the free end of the beam is investigated by (Koconis et al 1994) and are compared with the present study results in Fig. 2.…”

Section: Verification Studiesmentioning

confidence: 78%

Consideration of Spillover Effect in Active Vibration Suppression of a Smart Composite Plate Using Piezoelectric Elements

Eshraqi¹,

Shahravi

Azimi

2016

Lat. Am. j. solids struct.

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“…The e ects of applied voltage on the tip de ection are studied and compared with the results obtained by Koconis et al [32] in Figure 3. It is observed that results obtained by the present model are in excellent agreement with those of Koconis et al [32]. Having validated our proposed model, we present in this section results of static and dynamic studies on FGM plates with integrated piezoelectric sensor and actuator layers for two distinct conÿgurations.…”

Section: Numerical Studiesmentioning

confidence: 94%

“…The relevant material properties are listed in Table I. The e ects of applied voltage on the tip de ection are studied and compared with the results obtained by Koconis et al [32] in Figure 3. It is observed that results obtained by the present model are in excellent agreement with those of Koconis et al [32].…”

Section: Numerical Studiesmentioning

confidence: 99%

Active control of FGM plates subjected to a temperature gradient: Modelling via finite element method based on FSDT

Liew¹,

He²,

Ng³

et al. 2001

Numerical Meth Engineering

132

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SUMMARYAn e cient ÿnite element formulation based on a ÿrst-order shear deformation theory (FSDT) is presented for the active control of functionally gradient material (FGM) plates with integrated piezoelectric sensor=actuator layers subjected to a thermal gradient; this is accomplished using both static and dynamic piezothermoelastic analyses. The formulation based on FSDT can be applied to a range of relatively thin-to-moderately thick plates. A constant displacement-cum-velocity feedback control algorithm coupling the direct and inverse piezoelectric e ects is applied to provide active feedback control of the integrated FGM plate in a self-monitoring and self-controlling system. Numerical results for the control of bending and torsional de ections and=or vibrations are presented for a FGM plate comprising zirconia and aluminium. The e ects of constituent volume fraction and the in uence of feedback control gain on the static and dynamic responses of the FGM plates are examined in detail.

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“…In particular, active buckling (Chandrashekhara and Bhatia, 1993) and shape control (Koconis, Kollar and Springer, 1994a;1994b) have been considered. The application of piezoelectric devices to active vibration control of plates has focused on relatively low frequency modes afforded by thin plates (Tanaka, Kikushima and Kuroda, 1992).…”

Section: Finite Element Modeling Of a Photolithography Platenmentioning

confidence: 99%

Vibration control for precision manufacturing using piezoelectric actuators

Martinez¹,

Hinnerichs²,

Redmond

1997

Precision Engineering

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ABSTRACTreasonable stroke limits, all of which can be used to increase performance levels in precision manufacturing systems. This paper describes two examples of embedding piezoelectric actuators in structural components for vibration control. One example involves suppressing the self excited chatter phenomenon in the metal cutting process of a milling machine and the other involves damping vibrations induced by rigid body stepping of a photolithography platen. Finite element modeling and analyses are essential for locating and sizing the actuators and permit further simulation studies of the response of the dynamic system. Experimental results are given for embedding piezoelectric actuators in a cantilevered bar configuration, which was used as a surrogate machine tool structure. These results are incorporated into a previously developed milling process simulation and the effect of the control on the cutting process stability diagram is quantified. Experimental results are also given for embedding three piezoelectric actuators in a surrogate photolithography platen to suppress vibrations. These results demonstrate the potential benefit that can be realized by applying advances from the field of adaptive structures to problems in precision manufacturing.Piezoelectric actuators provide high frequency, force, and stiffness capabilities along with

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Shape Control of Composite Plates and Shells with Embedded Actuators. I. Voltages Specified

Cited by 106 publications

References 30 publications

Consideration of Spillover Effect in Active Vibration Suppression of a Smart Composite Plate Using Piezoelectric Elements

Consideration of Spillover Effect in Active Vibration Suppression of a Smart Composite Plate Using Piezoelectric Elements

Active control of FGM plates subjected to a temperature gradient: Modelling via finite element method based on FSDT

Vibration control for precision manufacturing using piezoelectric actuators

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