Energy harvesting by two magnetopiezoelastic oscillators with mistuning

Litak, Grzegorz; Friswell, Michael I.; Kwuimy, C. A. Kitio; Adhikari, Sondipon; Borowiec, Marek

doi:10.1063/2.1204309

Cited by 56 publications

(39 citation statements)

References 15 publications

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“…In the present paper, results provided in [1] are recalculated for the sake of output averaged power and compared with different approach of piezoelectric subsystem modelling. The system considered in this paper includes also the bending effect due to the gravity force, in contrast to the magnetic systems discussed in previous papers [12,[17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 96%

“…In the next paper [14], both the effects of random and the combined harmonic and stochastic excitation components in the same configuration of the system were studied. Similar approaches of piezoelastic devices have been also discussed in [15][16][17][18][19][20][21][22]. The aforementioned model [13,14] is followed in the paper [1], where the analysis of this system is completed by simulating cases of harmonic and combined harmonic-stochastic excitations in vertical direction.…”

Section: Introductionmentioning

confidence: 99%

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Energy harvesting of cantilever beam system with linear and nonlinear piezoelectric model

Borowiec

2015

Eur. Phys. J. Spec. Top.

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Abstract. The nonlinear beam with vertical combined excitations is proposed as an energy harvester. The nonlinearities are included both, in the beam model and also in the electrical subsystem. The system is modelled as a cantilever beam with included a tip mass and piezoelectric patches which convert the bending strains induced by both, the harmonic and the additive stochastic forces. The excitation affects in vertical directions by kinematic forcing into electrical charge. The first main goal is to analyse the dynamics of the electro-mechanical beam system and the influence of the mixed excitation forces into an effectiveness of the energy harvesting. Overcoming the potential barrier by the beam system is also analysed, where large output amplitudes occur. Such region of the vibration affects more power generation, which is crucial in terms of load resistors sensitivities. By increasing the additive noise level with fixed harmonic force it is observed the transition from single well oscillations to inter-well stochastic jumps. The second mail goal is analysing the influence of the piezoelectric nonlinear characteristic and compare the results to the linear piezoelectric cases. The output power is measured during different system behaviours provided by different piezoelectric characteristic as well as introduced stochastic components by modulated tip mass of the system.

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Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Energy harvesting of cantilever beam system with linear and nonlinear piezoelectric model

Borowiec

2015

Eur. Phys. J. Spec. Top.

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“…Many researchers have recently explored this sort of energy harvesting based on piezoelectric material. As some examples, we mention that the piezoceramics can be used as piezomagnetoelasctic structure and harvest energy from an ambient vibration [1,2]. A vast and important study of piezoelectric energy harvesting system can be found in [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Proposal of a Nonlinear Piezoelectric Coupling Term to Energy Harvesting Interactions

Tusset

Iliuk

Rocha

et al. 2015

Springer Proceedings in Physics

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Nowadays, new technologies have triggered the needs of new energy sources, smaller and more efficient, so the research about energy harvesting has increased substantially. Several researchers have developed the conversion of wasted mechanical energy to electrical energy using piezoelectric materials as a transducer. This chapter proposes a mathematical model for the constitutive equation of a piezoelectric transducer. Experimental results involving piezoelectric elements were considered. The proposed mathematical model allows a considerably better description. The results are closer to those obtained in a real system, reducing inaccuracy of predictive behaviour of the piezoelectric energy harvesting system. In this work, the numerical simulations show a significant difference between results obtained with the proposed model and other models available in literature.

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“…[1][2][3][4][5][6] Recent advances in material science and nonlinear analysis showed that, material with fractional order properties have deep impacts on systems performance; this includes improving their performance (reduce or enhance mechanical vibration). [7][8][9][10][11][12][13][14][15] Consequently, potential applications for energy harvesters can be developed.…”

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confidence: 99%

Enhance limit cycle oscillation in a wind flow energy harvester system with fractional order derivatives

Kwuimy

Litak

2014

Theoretical and Applied Mechanics Letters

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Advances in material science and mathematics in conjunction with technological needs have triggered the use of material and electric components with fractional order physical properties. This paper considers the mathematical model of a piezoelectric wind flow energy harvester system for which the capacitance of the piezoelectric material has fractional order current-voltage characteristics. Additionally the mechanical element is assumed to have fractional order damping. The analysis is focused on the effects of order of derivatives on the appearance and characteristics of limit circle oscillations (LCO). It is obtained that, the order of derivatives to enhance the amplitude of LCO and lower the threshold condition leading to LCO. The domains of efficiency of the system are illustrated in various parameters spaces.Scientific research in the area of energy harvester system (EHS) is mainly focused on enhancing the efficiency of the system by developing advanced material and/or considering nonlinear effects to reach widening the frequency bandwidth of the systems. 1-6 Recent advances in material science and nonlinear analysis showed that, material with fractional order properties have deep impacts on systems performance; this includes improving their performance (reduce or enhance mechanical vibration). 7-15 Consequently, potential applications for energy harvesters can be developed. In a recent contribution, we considered material with fractional order deflection and material with fractional order derivative 5 and estimated the best order of deflection and derivative for efficient harvesting. In another contribution, we discussed the effects of fractional order damping on the nonlinear response of a Duffing oscillator showing memory effects. 16 The main goal of this letter is to discuss the performance of a wind flow energy harvesting system by focusing on the effects of order of fractional derivatives on the existence and amplitude of limit cycle oscillations (LCO). Limit cycle oscillations were reported by Erturk et al. 17 while analyzing a harvester response under uniform airflow. The cut-in wind speed (leading to LCO) was observed experimentally by Kwon 18 for a T-shaped piezoelectric cantilevered beam under axial fluid flow. We discussed the performance of an harvester made of flexible beam with piezoa) Corresponding author.

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Energy harvesting by two magnetopiezoelastic oscillators with mistuning

Cited by 56 publications

References 15 publications

Energy harvesting of cantilever beam system with linear and nonlinear piezoelectric model

Energy harvesting of cantilever beam system with linear and nonlinear piezoelectric model

Proposal of a Nonlinear Piezoelectric Coupling Term to Energy Harvesting Interactions

Enhance limit cycle oscillation in a wind flow energy harvester system with fractional order derivatives

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