Analysis of piezoelectric energy harvester under modulated and filtered white Gaussian noise

Quaranta, Giuseppe; Trentadue, Francesco; Maruccio, Claudio; Marano, Giuseppe Carlo

doi:10.1016/j.ymssp.2017.10.031

Cited by 20 publications

(9 citation statements)

References 30 publications

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“…In particular, the main focus is on their energetic performance, that is on the mechanical and power electronic architectures and on the control techniques leading to the maximization of the extracted power [40,41]. Less attention has been devoted to the case of resonant piezoelectric harvesters excited by non-sinusoidal vibrations or solicited by white noise vibrations [42][43][44][45]. In particular, the theoretical analysis of [42] provided a stochastic description of the output power from resonant energy harvesters driven by broadband vibrations and output power dependence on signal bandwidth was considered.…”

Section: Introductionmentioning

confidence: 99%

Stochastic Thermodynamics of a Piezoelectric Energy Harvester Model

Costanzo

Schiavo

Sarracino

et al. 2021

Entropy

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We experimentally study a piezoelectric energy harvester driven by broadband random vibrations. We show that a linear model, consisting of an underdamped Langevin equation for the dynamics of the tip mass, electromechanically coupled with a capacitor and a load resistor, can accurately describe the experimental data. In particular, the theoretical model allows us to define fluctuating currents and to study the stochastic thermodynamics of the system, with focus on the distribution of the extracted work over different time intervals. Our analytical and numerical analysis of the linear model is succesfully compared to the experiments.

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Section: Introductionmentioning

confidence: 99%

Stochastic Thermodynamics of a Piezoelectric Energy Harvester Model

Costanzo

Schiavo

Sarracino

et al. 2021

Entropy

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“…In many cases, the vibrational energy is non-harmonic or entirely stochastic, with broad frequency content. Very few researchers [39][40][41][42][43] have investigated energy harvesting from random vibrations.…”

Section: Introductionmentioning

confidence: 99%

Performance of a Cantilever Energy Harvester under Harmonic and Random Excitations

2021

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The technique of harvesting the energy from base structural vibration through a piezoelectric transducer attached at an appropriate location on the vibrating structure is gaining popularity in recent years. Although the amount of energy harvested depends on the type and magnitude of base excitation, the energy harvest under random excitation as compared to equivalent harmonic excitations is not yet well understood and is investigated in this paper through a cantilever energy harvester. Initially, the energy harvested under harmonic excitations is numerically simulated and experimentally validated under increasing base accelerations with different load resistances. Subsequently, the performance of this energy harvester is experimentally studied under random excitations. The results demonstrate that the harvested energy (a) reaches maximum value when the base excitation matches the natural frequency of the harvester, (b) increases with the increase in base accelerations irrespective of the type of excitation, and (c) increases by 2-14 times under random excitations as compared to equivalent harmonic excitations i.e. under same energy input. It is recommended that the energy harvester be used in aerospace structures where random vibration amplitude is higher, to harvest more energy.

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“…Yao et al (2017, 2018) adopted a more creative method and investigated alternative uses of bistable piezoelectric straight and L-shaped beams as energy harvesters. A significant recent work has been motivated by the idea of improving energy harvesting from random excitations (Quaranta et al, 2018), and these investigations demonstrated that bistable composite plate energy harvesting may be a promising opportunity for enhanced energy harvesting performance.…”

Section: Introductionmentioning

confidence: 99%

Integrated vibration isolation and energy harvesting via a bistable piezo-composite plate

Shao

Fang

et al. 2019

Journal of Vibration and Control

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In passive vibration isolation, a bistable composite plate can be used to generate high-static low-dynamic stiffness, and in vibratory energy harvesting, when used with piezoelectric film flexing, the bistable composite plate can enhance the performance via snap-through motion. In the present work, we designed a bistable piezo-composite plate for both vibration isolation and energy harvesting. The analytical model for performance prediction is derived from the virtual work principle and the composite elasticity. Displacement transmissibility and output voltage generation were analytically determined for different mechanical and electrical parameters. The results illustrate that the bistable piezo-composite plate improves the feasibility and effectiveness of the integration design. Hardening and softening nonlinear phenomena coexist in both the displacement transmissibility and the output voltage plot. Approximate analytical solutions and numerical simulations are in good agreement. Both analytical and numerical results demonstrate that, at a certain frequency bands, enhanced energy harvesting is accompanied by a vibration transmissibility reduction. Compared with a linear system with the bistable piezo-composite plate removed, it achieved a reduction in the displacement transmissibility of about 13 dB at 100 Hz, simultaneously, and produced a considerable output voltage of about 0.05 V.

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Analysis of piezoelectric energy harvester under modulated and filtered white Gaussian noise

Cited by 20 publications

References 30 publications

Stochastic Thermodynamics of a Piezoelectric Energy Harvester Model

Stochastic Thermodynamics of a Piezoelectric Energy Harvester Model

Performance of a Cantilever Energy Harvester under Harmonic and Random Excitations

Integrated vibration isolation and energy harvesting via a bistable piezo-composite plate

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