A model for an extensional mode resonator used as a frequency-adjustable vibration energy harvester

Youngsman, John; Luedeman, Tim; Morris, Dylan J.; Anderson, Michael J.; Bahr, David F.

doi:10.1016/j.jsv.2009.09.011

Cited by 33 publications

(19 citation statements)

References 29 publications

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“…Rather than bending mode, some researchers also investigated the tunable resonator working in extensional mode, termed XMR (Morris et al, 2008;Youngsman et al, 2010).…”

Section: Mechanical Methodsmentioning

confidence: 99%

Toward Broadband Vibration-based Energy Harvesting

Tang

Yang

Soh

2010

Journal of Intelligent Material Systems and Structures

621

368

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The dramatic reduction in power consumption of current integrated circuits has evoked great research interests in harvesting ambient energy, such as vibrations, as a potential power supply for electronic devices to avoid battery replacement. Currently, most vibration-based energy harvesters are designed as linear resonators to achieve optimal performance by matching their resonance frequencies with the ambient excitation frequencies a priori. However, a slight shift of the excitation frequency will cause a dramatic reduction in performance. Unfortunately, in the vast majority of practical cases, the ambient vibrations are frequency-varying or totally random with energy distributed over a wide frequency spectrum. Hence, developing techniques to increase the bandwidth of vibration-based energy harvesters has become the next important problem in energy harvesting. This paper reviews the advances made in the past few years on this issue. The broadband vibration-based energy harvesting solutions, covering resonance tuning, 2 multimodal energy harvesting, frequency up-conversion and techniques exploiting nonlinear oscillations, are summarized in detail with regard to their merits and applicability in different circumstances.

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“…Rather than bending mode, some researchers also investigated the tunable resonator working in extensional mode, termed XMR (Morris et al, 2008;Youngsman et al, 2010).…”

Section: Mechanical Methodsmentioning

confidence: 99%

Toward Broadband Vibration-based Energy Harvesting

Tang

Yang

Soh

2010

Journal of Intelligent Material Systems and Structures

621

368

View full text Add to dashboard Cite

show abstract

“…Youngsman et al 46 developed an XMR model to predict the harvested power by varying the frequency and amplitude of the external vibration, the elastic and piezoelectric material properties, and the device geometry. The model provides design guidelines to develop an XMR device.…”

Section: Changing the Stiffness By Extensional Modementioning

confidence: 99%

A review on frequency tuning methods for piezoelectric energy harvesting systems

Ibrahim

Ali

2012

Journal of Renewable and Sustainable Energy

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Design and testing of piezoelectric energy harvester for powering wireless sensors of electric line monitoring system J. Appl. Phys. 111, 07E510 (2012); 10.1063/1.3677771 Broadband energy-harvesting using a two degree-of-freedom vibrating body Appl. Phys. Lett. 98, 214102 (2011); 10.1063/1.3595278 Piezoelectric energy harvesting using shear mode 0.71 Pb ( Mg 1 / 3 Nb 2 / 3 ) O 3 -0.29 PbTiO 3 single crystal cantilever Appl. Phys. Lett. 96, 083502 (2010); 10.1063/1.3327330Study on structure optimization of a piezoelectric cantilever with a proof mass for vibration-powered energy harvesting systemPiezoelectric energy harvesting technologies have received a great attention during the last decade to design self-powered microelectronic devices such as wireless sensor nodes. Piezoelectric energy harvester is a resonant system that produces maximum power output when its resonant frequency matches the ambient vibration frequency. The deviation from the resonance causes significant decrease in the power output. There are two possible solutions to compensate the effect of frequency deviation: widening the operating frequency bandwidth and tuning the resonant frequency. Tuning the resonant frequency is a more efficient technique for applications with single time varying dominant frequency. This paper presents a comprehensive review of frequency tuning methods for piezoelectric energy harvesting systems. Two categories generally investigated in the literature include manual and autonomous tuning methods. The recent developments of many tuning strategies are discussed and summarized. V C 2012 American Institute of Physics.

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“…Resonant frequency tuning technique can be implemented in a manual way by applying a preload [13,14,15], adjusting the pre-deflection [16], regulating the distance between the magnets with using a spring-screw mechanism [17] and varying the vertical relative distance to modify the attractive magnetic force [18] and adjusting the gravity center of the tip mass [18] or in a self-tuning way [19], applying voltage to the transducer [20], switching the shunt electrical load [21] and implementing an automatic controller [22,18]. with a dynamic magnifier consisting of a spring-mass system which is placed between the fixed end of the piezoelectric beam and the vibrating base structure, while Kim et al [30] suggested a VEH composed of two piezoelectric cantilevers coupled with a common proof mass and utilizing both translational and rotational degrees of freedom.…”

Section: Introductionmentioning

confidence: 99%

Multi-modal vibration energy harvesting approach based on nonlinear oscillator arrays under magnetic levitation

Abed

Kacem

Bouhaddi

et al. 2016

Smart Mater. Struct.

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We propose a multi-modal vibration energy harvesting approach based on arrays of coupled levitated magnets. The equations of motion which include the magnetic nonlinearity and the electromagnetic damping are solved using the harmonic balance method coupled with the asymptotic numerical method. A multi-objective optimization procedure is introduced and performed using a non-dominated sorting genetic algorithm for the cases of small magnet arrays in order to select the optimal solutions in term of performances by bringing the eigenmodes close to each other in terms of frequencies and amplitudes. Thanks to the nonlinear coupling and the modal interactions even for only three coupled magnets, the proposed method enable harvesting the vibration energy in the operating frequency range of 4.6-14.5 Hz, with a bandwidth of 190% and a normalized power of 20.2 mW cm g 3 2 --.

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A model for an extensional mode resonator used as a frequency-adjustable vibration energy harvester

Cited by 33 publications

References 29 publications

Toward Broadband Vibration-based Energy Harvesting

Toward Broadband Vibration-based Energy Harvesting

A review on frequency tuning methods for piezoelectric energy harvesting systems

Multi-modal vibration energy harvesting approach based on nonlinear oscillator arrays under magnetic levitation

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