Electromechanical semi-passive nonlinear tuned mass damper for efficient vibration damping

Lallart, Mickaël; Yan, Linjuan; Wu, Yi-Chieh; Guyomar, Daniel

doi:10.1016/j.jsv.2013.06.006

Cited by 20 publications

(10 citation statements)

References 36 publications

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“…It can be noted that, because of the resistive losses within the inductance, the voltage inversion is not totally perfect, and characterized by the inversion coefficient γ = e − pi / ( 2 scriptQ i ) , with Q i the electrical quality factor of the circuit. For typical systems, the range of the inversion coefficient is around 0.6–0.9 (Lallart et al, 2008c, 2013; Yan et al, 2014), the lower bound corresponding to the self-powered implementation of the technique. In the case of spatial filtering and hybrid approaches, as the equivalent capacitance of the circuit is divided by 2 because of the series connection of the piezoelectric elements, such losses are reduced, yielding a better inversion.…”

Section: Simulation Results and Discussionmentioning

confidence: 99%

Hybrid time-domain and spatial filtering nonlinear damping strategy for efficient broadband vibration control

Yan

Lallart

Guyomar

2015

Journal of Intelligent Material Systems and Structures

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Limiting low-frequency vibrations with low-energy, yet efficient strategies is of prior importance in embedded devices, such as on-board electronics. Hence, particular attention has been paid over the few last decades to electromechanical materials able to convert mechanical energy into electricity, therefore reducing the mechanical energy within the structure yielding a damping effect. However, under multimodal or more generally broadband vibration spectra, the performance of such systems is compromised. Hence, the purpose of this paper is to expose an efficient nonlinear technique based on the intermittent voltage inversion of a piezoelectric element voltage through switching actions. In order to achieve very good performance under broadband vibrations, spatial and time domain filtering approaches are implemented within the control of the digital switches, allowing simultaneous mode separation thanks to the spatial filtering process and better energy transfer due to the processing of the time history of the signal. Finite-element simulations, based on an experimental device, show that such a hybrid technique significantly outperforms the classical switching algorithm as well as the spatial and time domain approaches (when taken separately).

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Section: Simulation Results and Discussionmentioning

confidence: 99%

Hybrid time-domain and spatial filtering nonlinear damping strategy for efficient broadband vibration control

Yan

Lallart

Guyomar

2015

Journal of Intelligent Material Systems and Structures

Self Cite

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“…In practice, the performance of semi-active suspensions can be influenced by the nonlinear characteristics of the damping force, the dynamics of solenoid valves, the time-delay of the control system, and so on. 28,42 Hence, the hardware-in-the-loop simulation with a real damper and a control system is developed to validate the controller in the presence of nonlinearities. The configuration for the HILS is shown in Figure 19.…”

Section: Random Roadmentioning

confidence: 99%

A method to eliminate unsprung adverse effect of in-wheel motor-driven vehicles

Nie

Zhuang

Chen³

et al. 2018

Journal of Low Frequency Noise, Vibration and Active Control

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In-wheel motor-driven vehicles are the development trend for future vehicles due to its high energy efficiency and low emission as well as its flexibility to achieve independent steering, driving, etc. However, the weighted wheel of in-wheel electric vehicles involves more unexpected unsprung vibrations, which imposes adverse effect on vehicle ride comfort. In addition, there exists an invariant point around the unsprung resonance frequency in both controlled and uncontrolled suspensions, which greatly limits the elimination of unsprung adverse effect of in-wheel electric vehicles. In this paper, a combined structure is proposed to eliminate the unsprung adverse effect. The structure is composed of the vehicle suspension and a tuned mass damper, which are both controlled by a sliding mode controller, aiming at eliminating the unsprung adverse effect as well as improving ride comfort across the whole frequency spectrum. The tunes mass damper is used to get rid of the constraint of the invariant point. The simulation and hardware-in-theloop results show that the root mean square of the sprung mass acceleration and tire deflection is reduced by 31.2% and 2.2% respectively, which indicates that the proposed method is effective and ride comfort is greatly improved.

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“…Hence, it is important to investigate its influence on the control performance. According to equations (11), (18) and (36), the force generated by the piezoelectric actuator and acting on the ith mode can be expressed as…”

Section: Influence Of Voltage Inversion Time On Control Performancementioning

confidence: 99%

“…The SSD method shows its great potential in vibration control because of several advantages. Recently, a number of investigations have been carried out with the aim of improving the control performance using the SSD method [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Superharmonic vibration and its reduction in SSD control by increase of voltage inversion time

Tan

Qiu

et al. 2018

Smart Mater. Struct.

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The semi-active synchronized switch damping (SSD) approach has been widely used in vibration suppression owing to its many advantages compared with the active and passive approaches. The SSD method is realized by switching the voltage on the piezoelectric patch embedded in the structure, synchronically with the vibration of the mode to be controlled. Although good control performance can be obtained in the targeted mode, vibrations of highorder harmonic frequencies are usually excited due to the rectangular waveform of the switched actuator voltage because of infinitesimal inversion time, as observed in the previous experiments. This drawback of the SSD method has greatly hindered its application in practical engineering structures. In order to overcome this drawback, the authors propose a new method in this study to suppress the high-order harmonic components in the switched voltage by increasing the inversion time of the voltage. The theoretical expressions of the switched voltage and the dynamic response of the structure were formulated for the cases with finite voltage inversion time. The theoretical results show that increasing the inversion time may weaken the vibration control effect of the targeted mode, but it can significantly reduce the excitation force of the highorder harmonic components. When the inversion time is half of the period of the targeted mode, all the high-order harmonic components in the actuator voltage are completely erased and the control force of the targeted mode decreases by 21%. An experimental setup of a flexible beam was used to verify the theoretical results of the switched voltage and control performance under different inversion time.

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Electromechanical semi-passive nonlinear tuned mass damper for efficient vibration damping

Cited by 20 publications

References 36 publications

Hybrid time-domain and spatial filtering nonlinear damping strategy for efficient broadband vibration control

Hybrid time-domain and spatial filtering nonlinear damping strategy for efficient broadband vibration control

A method to eliminate unsprung adverse effect of in-wheel motor-driven vehicles

Superharmonic vibration and its reduction in SSD control by increase of voltage inversion time

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