Identification of hybrid energy harvesting systems with non-Gaussian process

Sun, Ya-Hui; Zeng, Yuan-Hui; Yang, Yong-Ge

doi:10.1007/s10409-023-23154-x

Cited by 9 publications

(2 citation statements)

References 50 publications

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“…With the digging of sustainable energy, it is noticed that vibration is ubiquitous in the environment. [1,2] Therefore, the vibration energy harvesting technique has attracted extensive attention. With the rapid development of self-supplied electronic equipment with low energy consumption, vibration energy harvesting has been utilized in many fields in recent years, such as biomedical field, environmental monitoring field and mechanical engineering field.…”

Section: Introductionmentioning

confidence: 99%

Performance enhancement of a viscoelastic bistable energy harvester using time-delayed feedback control

Huang 黄,

Yang 杨,

Liu 刘

2024

Chinese Phys. B

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This paper focuses on the stochastic analysis of a viscoelastic bistable energy harvesting system under colored noise and harmonic excitation, and adopts the time-delayed feedback control to improve its harvesting effciency. Firstly, to obtain the dimensionless governing equation of the system, the original bistable system is approximated as a system without viscoelastic term by using the stochastic averaging method of energy envelope, and then is further decoupled to derive an equivalent system. The credibility of the proposed method is validated by contrasting the consistency between the numerical and the analytical results of the equivalent system under different noise conditions. The influence of system parameters on average output power is analyzed, and the control effect of the time-delayed feedback control on system performance is compared. The output performance of the system is improved with the occurrence of stochastic resonance(SR). Therefore, the signal-to-noise ratio expression for measuring SR is derived, and the dependence of its SR behavior on different parameters is explored.

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Section: Introductionmentioning

confidence: 99%

Performance enhancement of a viscoelastic bistable energy harvester using time-delayed feedback control

Huang 黄,

Yang 杨,

Liu 刘

2024

Chinese Phys. B

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“…Various types of energy harvesters have been developed, including piezoelectric, [28] electromagnetic, [29] electrostatic, [30] and piezoelectric-electromagnetic hybrid types. [31] Han et al [32] obtained the moments of the stochastic galloping energy harvester with a parallel circuit. Huang et al [33] studied responses, optimization and prediction of energy harvesters under galloping and base excitations by using the complexification-averaging method.…”

Section: Introductionmentioning

confidence: 99%

A viscoelastic nonlinear energy sink with an electromagnetic energy harvester: Narrow-band random response

Liao 廖,

Sun 孙,

Liu 刘

2024

Chinese Phys. B

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Nonlinear energy sink is a passive energy absorption device that surpasses linear dampers, and has gained significant attention in various fields of vibration suppression. This is owing to its capacity to offer high vibration attenuation and robustness across a wide frequency spectrum. Energy harvester is a device employed to convert kinetic energy into usable electric energy. In this paper, we propose an electromagnetic energy harvester enhanced viscoelastic nonlinear energy sink (VNES) to achieve passive vibration suppression and energy harvesting simultaneously. A critical departure from prior studies is the investigation of the stochastic P-bifurcation of the electromechanically coupled VNES system under narrow-band random excitation. Initially, approximate analytical solutions are derived using a combination of multiple-scale method and a perturbation approach. The substantial agreement between theoretical analysis solutions and numerical solutions obtained from Monte Carlo simulation underscores the method’s high degree of validity. Furthermore, the effects of system parameters on system responses are carefully examined. Additionally, we demonstrate that stochastic P-bifurcation can be induced by system parameters, which is further verified by the steady-state density functions of displacement. Lastly, we analyze the impacts of various parameters on mean square current and mean output power, crucial for selecting suitable parameters to enhance energy harvesting performance.

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Kinematics characteristics of unsprung mass in a double wishbone suspension based on velocity transformation

Duan,

Wu,

Zhang

2024

Acta Mech. Sin.

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Identification of hybrid energy harvesting systems with non-Gaussian process

Cited by 9 publications

References 50 publications

Performance enhancement of a viscoelastic bistable energy harvester using time-delayed feedback control

Performance enhancement of a viscoelastic bistable energy harvester using time-delayed feedback control

A viscoelastic nonlinear energy sink with an electromagnetic energy harvester: Narrow-band random response

Kinematics characteristics of unsprung mass in a double wishbone suspension based on velocity transformation

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