Influence of asymmetric potential on multiple solutions of the bi-stable piezoelectric harvester

Giri, Abhijeet Madhukar; Ali, Shaikh Faruque; Arockiarajan, A.

doi:10.1140/epjs/s11734-022-00496-8

Cited by 9 publications

(4 citation statements)

References 30 publications

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“…The corresponding responses with changing the frequency of excitation were studied. The set of dimensionless equations of motion [9,10]:…”

Section: Modelling Of Nonlinear Piezoelectric Energy Harvestermentioning

confidence: 99%

“…Recently, the influence of potential well asymmetry on the dynamics of magneto-elastic and piezomagneto-elastic harvesters were investigated by assuming the asymmetry of potential wells [9] and introducing inclination of the frame with respect to the gravitational vertical direction [10]. The results of the numerical investigations [9,10] prove that small and moderate levels of asymmetry considered in the investigations have insignificant influence on the desirable cross-well periodic solution. Subharmonic and chaotic solutions were also studied in terms of basins of attraction.…”

Section: Introductionmentioning

confidence: 99%

“…The studies of asymmetric potential were also conducted with the stochastic excitations [14] and for the system with multiple potential wells [15]. In this paper, the previous direction of studies [9,10] on the harmonically excited harvesters including the subharmonic branches appearance during the change of frequency for various electromechanical coupling values was completed.…”

Section: Introductionmentioning

confidence: 99%

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Subharmonic responses of a nonlinear energy harvester with an asymmetric double well potential

Litak

Margielewicz

Gąska

et al. 2022

J. Phys.: Conf. Ser.

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A nonlinear energy harvester with asymmetric potential wells is studied numerically. An energy transducing piezoelectric patch is attached to the cantilever elastic beam to harvest kinetic energy of the moving frame. To obtain an asymmetric effect in the double well potential induced by permanent magnets, an elastic ferromagnetic beam resonator misaligned with respect to the magnets' distribution axis of symmetry was used. The system response under the frequency-swept excitation reporting bifurcations to subharmonic and chaotic solutions was analysed. The sensitivity of the system solutions to the parameters responsible for potential asymmetry and electro-mechanical coupling was also investigated.

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“…The corresponding responses with changing the frequency of excitation were studied. The set of dimensionless equations of motion [9,10]:…”

Section: Modelling Of Nonlinear Piezoelectric Energy Harvestermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Subharmonic responses of a nonlinear energy harvester with an asymmetric double well potential

Litak

Margielewicz

Gąska

et al. 2022

J. Phys.: Conf. Ser.

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show abstract

“…Such nonlinear behavior has been obtained by using nonlinear mechanical and magnetic springs with softening or hardening effects [28]. Some of the interesting proposals include energy harvesters with multi-stable mechanical or magnetic potential [29][30][31][32]. A few other approaches involve active and autonomous tuning of system parameters to sustain the resonance conditions [33,34].…”

Section: Introductionmentioning

confidence: 99%

Energy Harvester Based on a Rotational Pendulum Supported with FEM

Litak,

Kondratiuk,

Wolszczak

et al. 2024

Applied Sciences

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The proposed energy harvesting system is based on a rotational pendulum-like electromagnetic device. Pendulum energy harvesting systems can be used to generate power for wearable devices such as smart watches and fitness trackers, by harnessing the energy from the human body motion. These systems can also be used to power low-energy-consuming sensors and monitoring devices in industrial settings where consistent ambient vibrations are present, enabling continuous operation without any need for frequent battery replacements. The pendulum-based energy harvester presented in this work was equipped with additional adjustable permanent magnets placed inside the induction coils, governing the movement of the pendulum. This research pioneers a novel electromagnetic energy harvester design that offers customizable potential configurations. Such a design was realized using the 3D printing method for enhanced precision, and analyzed using the finite element method (FEM). The reduced dynamic model was derived for a real-size device and FEM-based simulations were carried out to estimate the distribution and interaction of the magnetic field. Dynamic simulations were performed for the selected magnet configurations of the system. Power output analyses are presented for systems with and without the additional magnets inside the coils. The primary outcome of this research demonstrates the importance of optimization of geometric configuration. Such an optimization was exercised here by strategically choosing the size and positioning of the magnets, which significantly enhanced energy harvesting performance by facilitating easier passage of the pendulum through magnetic barriers.

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Response analysis of asymmetric monostable energy harvester with an uncertain parameter

Zhang,

Gao,

Yang

et al. 2024

International Journal of Non-Linear Mechanics

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Influence of asymmetric potential on multiple solutions of the bi-stable piezoelectric harvester

Cited by 9 publications

References 30 publications

Subharmonic responses of a nonlinear energy harvester with an asymmetric double well potential

Subharmonic responses of a nonlinear energy harvester with an asymmetric double well potential

Energy Harvester Based on a Rotational Pendulum Supported with FEM

Response analysis of asymmetric monostable energy harvester with an uncertain parameter

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