Vibration Energy Harvesting: Linear and Nonlinear Oscillator Approaches

Gammaitoni, L.; Vocca, H.; Neri, I.; Travasso, F.; Orfei, Francesco

doi:10.5772/25623

Cited by 16 publications

(13 citation statements)

References 35 publications

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“…Energy harvesting can be performed both at the macro [1], micro [3] and even at nano scales [2]. Unfortunately, most of the available power sources have very low frequency oscillations while the resonant frequency of any nano-mechanical device is paradoxically high (∝ GHz) which make many issues related to their performances as energy harvesters yet to be solved, particularly that of extracting energy at low frequencies.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Dynamics of an Ambient Noise Driven Array of Coupled Graphene Nanostructured Devices for Energy Harvesting

Aroudi

López-Suárez

Alarcón

et al. 2014

MATEC Web of Conferences

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Abstract.Nonlinearities have been shown to play an important role in increasing the extracted energy of energy harvesting devices at the macro and micro scales. Vibration-based energy harvesting on the nano scale has also received attention. In this paper, we characterize the nonlinear dynamical behavior of an array of three coupled strained nanostructured graphene for its potential use in energy harvesting applications. The array is formed by three compressed vibrating membrane graphene sheet subject to external vibrational noise excitation. We present the continuous time dynamical model of the system in the form of a double-well three degree of freedom system. Random vibrations are considered as the main ambient energy source for the system and its performances in terms of the probability density function, RMS or amplitude value of the position, FFT spectra and state plane trajectories are presented in the steady state non-equilibrium regime when the noise level is considered as a control parameter.

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Section: Introductionmentioning

confidence: 99%

Nonlinear Dynamics of an Ambient Noise Driven Array of Coupled Graphene Nanostructured Devices for Energy Harvesting

Aroudi

López-Suárez

Alarcón

et al. 2014

MATEC Web of Conferences

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“…An alternative to partially solve the problem comes with the use of a nonlinear energy harvester [2,3]. This kind of energy harvesters have a wider frequency band response with respect to the linear one.…”

Section: Introductionmentioning

confidence: 99%

Circuitry for nonlinear vibration energy harvesting

Orfei

2014

2014 21st IEEE International Conference on Electronics, Circuits and Systems (ICECS)

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Nonlinear vibration energy harvesting is becoming a technology more and more important. Generally vibrations are spread over hundreds or thousands of hertz, making impractical the use of tuned systems. Real world vibrations are even not constant in amplitude, and this makes hard to design a high efficiency electrical energy rectifier and regulator due to the non constant RMS value of the input energy. In this paper is described the solution adopted for a wireless sensor for the automotive market, powered by a nonlinear bi-stable vibration energy harvester.

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“…This maximum power extraction depends on the quality factor of the linear resonator but it is viable only when the excitation frequency is known a priori. Moreover, a maximum energy extraction with a high quality factor will paradoxically imply a limited and narrow frequency range within which energy can be harvested.However, In environments where no single dominant frequency exists, these performances can degrade significantly as the excitation frequency moves away from the designed frequency [3]. To overcome these problems, some solutions have been reported recently.…”

Section: Introductionmentioning

confidence: 99%

“…To overcome these problems, some solutions have been reported recently. Among others, we can quote resonance tuning using mechanical, electrostatic and piezoelectric mechanisms, frequency up-conversion techniques and nonlinear wide bandwidth energy harvesting [3]- [5]. In the nonlinear energy harvesting approach, rather than resonance frequency tuning, the nonlinearity of the system is exploited to improve the performances of the energy harvester within a wide frequency range outperforming classical resonant energy harvesters [3], [6].…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, energy harvesting can be performed both at the macro [3], micro [7] and even at nano scales [2]. Unfortunately, most of the available power sources have very low frequency oscillations while the resonant frequency of any nano-mechanical device is paradoxically high (∝ GHz) which make many issues related to their performances as energy harvesters yet to be solved, particularly that of extracting energy at low frequencies.…”

Section: Introductionmentioning

confidence: 99%

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Nonlinear dynamics in a graphene nanostructured device for energy harvesting

Aroudi

López-Suárez²,

Alarcón

et al. 2013

2013 IEEE International Symposium on Circuits and Systems (ISCAS2013)

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Nonlinearities have been shown to play an important role in increasing the extracted energy of energy harvesting devices at the macro and micro scales. Vibration-based energy harvesting on the nano scale has also received attention. In this paper, we characterize the nonlinear dynamical behavior of a strained nanostructured graphene for its potential use in energy harvesting applications. A compressed vibrating membrane graphene sheet free from any external excitation is first studied. We present a continuous time dynamical model of the system in the form of a double-well single degree of freedom system. Equilibrium points are obtained and their stability analysis is carried out. Then, random vibrations are considered as the main ambient energy source for the system and its performances in terms of the well occupation zones, RMS value of the position, and the corresponding energy harvested are presented in the steady state non-equilibrium regime when the noise level is considered as a control parameter. From this model, nonlinear analysis is carried out by computing state space trajectories, probability density and FFT spectra under a deterministic excitation. The ultimate goal of this parameter space exploration based upon a behavioral model is to provide design-oriented guidelines for engineering graphene-based mechanical harvestersPostprint (published version

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Vibration Energy Harvesting: Linear and Nonlinear Oscillator Approaches

Cited by 16 publications

References 35 publications

Nonlinear Dynamics of an Ambient Noise Driven Array of Coupled Graphene Nanostructured Devices for Energy Harvesting

Nonlinear Dynamics of an Ambient Noise Driven Array of Coupled Graphene Nanostructured Devices for Energy Harvesting

Circuitry for nonlinear vibration energy harvesting

Nonlinear dynamics in a graphene nanostructured device for energy harvesting

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