Optimization of damping and absorbing performance of shunted piezo elements utilizing negative capacitance

Neubauer, Marcus; Oleskiewicz, Robert; Popp, Karl; Krzyżyński, Tomasz

doi:10.1016/j.jsv.2006.04.043

Cited by 108 publications

(87 citation statements)

References 10 publications

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“…By dimensionless transformations and retransformations, these systems affect dynamical flexibility of the system and the values of capacitance in the external electric network which is connected to the piezostack actuator. Negative value of the external capacitor can be realized by the synthetic impedance with the use of operational amplifiers as mentioned and proposed in [3,9].…”

Section: Discussionmentioning

confidence: 99%

“…Possibility of piezoelectric elements application as actuators for vibration isolation has been presented in [1][2][3]. Other vibration reduction types used in synthesis of mechanical systems, have been compared and presented in [4].…”

Section: Introductionmentioning

confidence: 99%

“…Knowing the possibilities of creating negative capacitance elements and utilizing them for vibration control [3,9], one formulates the goal of the paper as to check what are the impacts, constrains and limitations if selective parameters take and set out of the required ranges during identified steps of the synthesis process (against the assumptions from [5,6]). As parameters identification is very important [10], the authors investigated, on the basis of the example of a cascade mechatronic LC system, which stiffness elements are important and have the influence on negative capacitance in the external electric network.…”

Section: Introductionmentioning

confidence: 99%

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The Reverse Task of Discrete Mechatronic Vibration Systems With Negative Stiffness and Capacitance Elements

Białas

Buchacz

Gałęziowski

2015

Archive of Mechanical Engineering

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the use of different distribution methods of dynamical characteristics in the form of slowness function, mechatronic discrete systems have been synthesized. Each model consists of mechanical discrete part and a piezostack actuator connected to L x R x C x external network that has to comply with dynamical requirements in the form of poles and zeros. External network can work within different configurations. In this paper, one investigates the influence of negative parameters of stiffness in mechanical replacement models and capacitance in final mechatronic structures, after dimensionless transformations and retransformations.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Reverse Task of Discrete Mechatronic Vibration Systems With Negative Stiffness and Capacitance Elements

Białas

Buchacz

Gałęziowski

2015

Archive of Mechanical Engineering

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“…There is an optimal point where the maximum energy is dissipated. Analytical equations for the optimal values of an R-shunt were first presented in [6] and later extended by [8]. Equation (6) gives the resistance value when the mechanical displacement of the mass M is minimized.…”

Section: R-shuntmentioning

confidence: 99%

“…In this paper, different semi-passive and semi-active shunting techniques are applied and used in three different ways, to change the fundamental behavior of the tuned mass absorber: First, a simple resistant (R-shunt) and an RL-shunt are connected to piezoelectric elements, which are bonded to the absorber structure, to change the damping behavior of the absorber. Second, a resonant shunt, in combination with a negative capacitance, which is thoroughly described in [8] and [9], is used to attenuate the absorber's vibration, thus making it possible to achieve a structural behavior, which is nearly equivalent to that of a stiffly coupled additional mass only. Third, the negative capacitance itself is used to reduce the stiffness of the absorber in order to change the passive tuning frequency toward lower values.…”

Section: Introductionmentioning

confidence: 99%

Tuning of a vibration absorber with shunted piezoelectric transducers

et al. 2014

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In order to reduce structural vibrations in narrow frequency bands, tuned mass absorbers can be an appropriate measure. A quite similar approach which makes use of applied piezoelectric elements, instead of additional oscillating masses, are the well-known resonant shunts, consisting of resistances, inductances, and possibly negative capacitances connected to the piezoelectric element. This paper presents a combined approach, which is based on a conventional tuned mass absorber, but whose characteristics can be strongly influenced by applying shunted piezoceramics. Simulations and experimental analyses are shown to be very effective in predicting the behavior of such electromechanical systems. The vibration level of the absorber can be strongly attenuated by applying different combinations of resistant, resonant, and negative capacitance shunt circuits. The damping characteristics of the absorber can be changed by applying a purely resistive or resonant resistant shunt. Additionally, the tuning frequency of the absorber can be adapted to the excitation frequency, using a negative capacitance shunt circuit, which requires only the energy to supply the electric components.

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Reverse task as a designing of mechatronic vibrating branched systems

Buchacz

Gałęziowski

2011

Proc Appl Math and Mech

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In this paper a new approach for designing mechatronic vibrating branched structures has been presented. Mechatronic structures have been built from mechanical discrete systems connected to piezoelectric actuator and externalLxRxCx network, with different configurations. Modeling simplification has been performed by use of non dimensional transformations and retransformations. In each case reverse task has been solved by distribution into partial fraction method in respect to required dynamic properties in form of frequency spectrum: resonant and anti resonant frequencies. Furthermore, different configurations of final LxRxCx network have been presented. These considerations have been supported by calculation examples, and all results have been presented in the graphical form. (© 2011 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Optimization of damping and absorbing performance of shunted piezo elements utilizing negative capacitance

Cited by 108 publications

References 10 publications

The Reverse Task of Discrete Mechatronic Vibration Systems With Negative Stiffness and Capacitance Elements

The Reverse Task of Discrete Mechatronic Vibration Systems With Negative Stiffness and Capacitance Elements

Tuning of a vibration absorber with shunted piezoelectric transducers

Reverse task as a designing of mechatronic vibrating branched systems

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