&lt;title&gt;Enhanced semi-passive damping using continuous switching of a piezoelectric device on an inductor&lt;/title&gt;

Richard, Claude; Guyomar, Daniel; Audigier, David; Bassaler, Henri

doi:10.1117/12.384569

Cited by 238 publications

(268 citation statements)

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“…Switching shunts seem to be promising for an implementation that does not require power, because the switches can be realized with MOSFETs that require meaningless power to be switched and the small amount of power, required to switch the MOSFETs, could be supplied by an additional piezoelectric patch. Switching R-L shunts have been proposed by [21,22]. In the present work with the aim to obtain a good performance without having to tune the system, it is considered a switching passive circuit, which opens and closes at a precise timing.…”

Section: Active Control Strategiesmentioning

confidence: 99%

Implementation of an Electronic Circuit for SSSA Control Approach of a Plate Type Element and Experimental Match with a Feed-Forward Approach

Viscardi¹,

Leo²

2016

Archive of Mechanical Engineering

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Successful implementation of an active vibration control system is strictly correlated to the exact knowledge of the dynamic behavior of the system, of the excitation level and spectra and of the sensor and actuator's specification. Only the correct management of these aspects may guarantee the correct choice of the control strategy and the relative performance. Within this paper, some preliminary activities aimed at the creation of a structurally simple, cheap and easily replaceable active control systems for metal panels are discussed. The final future aim is to control and to reduce noise, produced by vibrations of metal panels of the body of a car. The paper is focused on two points. The first one is the realization of an electronic circuit for Synchronized Shunted Switch Architecture (SSSA) with the right dimensioning of the components to control the proposed test article, represented by a rectangular aluminum plate. The second one is a preliminary experimental study on the test article, in controlled laboratory conditions, to compare performances of two possible control approach: SSSA and a feed-forward control approach. This comparison would contribute to the future choice of the most suitable control architecture for the specific attenuation of structure-born noise related to an automotive floor structure under deterministic (engine and road-tyre interaction) and stochastic (road-tyre interaction and aerodynamic) forcing actions.

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Section: Active Control Strategiesmentioning

confidence: 99%

Implementation of an Electronic Circuit for SSSA Control Approach of a Plate Type Element and Experimental Match with a Feed-Forward Approach

Viscardi¹,

Leo²

2016

Archive of Mechanical Engineering

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“…ζ e = − log e γ √ π 2 + (log e γ) 2 (60) Richard et al, 2000) ω * e 100 ω * e = 100 Resonance curves for different values of the control strength parameter β . Increasing value of β suppresses the resonance peak around ω * = 1 and stretches the differences between the solutions obtained by method of harmonic balance and shooting method in frequency ranges lower than specific frequencies.…”

Section: Shunt For Voltage Inversionmentioning

confidence: 99%

“…The inversion process is completed after the half period of the damping electrical vibration T de /2. (Richard et al, 2000) 1 …”

mentioning

confidence: 99%

Analysis of responses of semi-active vibration control systems using piezoelectric actuators to harmonic disturbance forces

Nakahara

Fujimoto

2018

Transactions of the JSME (In Japanese)

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A semi-active vibration control technique using piezoelectric actuators with switched inductance shunts has been studied. This technique can be used for not only vibration suppression but also energy harvesting. In order to design semi-active vibration control systems and energy harvesters using this technique efficiently, it is necessary to analyze and understand the effects of design parameters on the performance of these systems. Responses of these systems to harmonic disturbance forces can be used for performance evaluation and previous studies analyze periodic responses of semi-active vibration control systems by assuming sinusoidal displacement responses and using method of harmonic balance. However, this control technique induces rectangular control forces and the displacement responses are distorted. Enhancing the control forces leads to stronger distortion of the responses and the validity of the assumption of the previous studies becomes lost. In order to overcome this problem, the authors have proposed to use shooting method which is a numerical method to calculate periodic solutions of non-linear systems without assuming certain forms of responses. This paper presents periodic responses obtained by shooting method with an improved non-dimensional model and the periodic responses are compared with ones obtained by method of harmonic balance. Furthermore, this paper considers not only the periodic responses but also non-periodic chaotic responses obtained by long term simulations with the non-dimensional model.

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“…Among them, the synchronized switch damping (SSD) technique has received considerable attention since it was proposed by Richard et al [18,19] because of its simple implementation and broadband performance. The piezoelectric patches, each one connected with an SSD circuit, are embedded in or bonded to the host structures, and the voltage difference between the electrodes is switched at the strain extrema or displacement extrema of the host structures in every vibration cycle.…”

Section: Introductionmentioning

confidence: 99%

A Modified Nonlinear Modal Synthesis Scheme for Mistuned Blisks with Synchronized Switch Damping

Liu

Fan

et al. 2018

International Journal of Aerospace Engineering

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In the authors' previous work (MSSP 2017), we show that the synchronized switch damping based on negative capacitor (SSDNC) is a good candidate for vibration suppression of tuned blisks. In this paper, we consider the mistuned case and propose an efficient numerical approach to accelerate the required statistical analysis. Although SSDNC is a type of nonlinear piezoelectric damping, through an in-depth nonlinear modal analysis, we show that the modal information of the system remains unchanged with respect to the nonlinear modal amplitude. Based on this, an accelerated nonlinear component modal synthesis (NCMS) method is proposed to predict and further analyse the dynamic characteristics of the nonlinear system. The precision and efficiency of the proposed method is compared with that of the multiharmonic balance method. The stochastic characteristics of the blisk are studied with two sources of mistuning. The first one is random stiffness mistuning and the second one is capacitance mistuning. The investigation is carried out with different mistuning levels and under different engine-order excitations. The results show that the NCMS method can accurately predict the forced response of the mistuned blisk with SSDNC, and the calculation cost can be considerably reduced. Two advantages of the SSDNC technique applied to the mistuned blisk have been revealed in the statistical view. The first one is that the SSDNC can suppress the amplified vibration induced by the mistuning of the blisk significantly. The second one is that the vibration-suppression performance of SSDNC is insensitive to the mistuning of the blisk and that of the electrical circuits.

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<title>Enhanced semi-passive damping using continuous switching of a piezoelectric device on an inductor</title>

Cited by 238 publications

References 0 publications

Implementation of an Electronic Circuit for SSSA Control Approach of a Plate Type Element and Experimental Match with a Feed-Forward Approach

Implementation of an Electronic Circuit for SSSA Control Approach of a Plate Type Element and Experimental Match with a Feed-Forward Approach

Analysis of responses of semi-active vibration control systems using piezoelectric actuators to harmonic disturbance forces

A Modified Nonlinear Modal Synthesis Scheme for Mistuned Blisks with Synchronized Switch Damping

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