Evanescent waves in a metabeam attached with lossy acoustic black hole pillars

Mechanical Systems and Signal Processing, Год журнала: 2023, Номер 191, С. 110182 - 110182

Опубликована: Фев. 6, 2023

Язык: Английский

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Underwater sound radiation from a Mindlin plate with an acoustic black hole

Ocean Engineering, Год журнала: 2023, Номер 278, С. 114376 - 114376

Опубликована: Апрель 3, 2023

Язык: Английский

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Novel vibration control method of acoustic black hole plates using active–passive piezoelectric networks

Thin-Walled Structures, Год журнала: 2023, Номер 186, С. 110705 - 110705

Опубликована: Март 27, 2023

Язык: Английский

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Nonlinear mechanic analysis of a composite pipe conveying solid-liquid two-phase flow

Applied Ocean Research, Год журнала: 2024, Номер 144, С. 103905 - 103905

Опубликована: Фев. 3, 2024

Язык: Английский

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Approximate global mode method for flutter analysis of folding wings

International Journal of Mechanical Sciences, Год журнала: 2023, Номер 265, С. 108902 - 108902

Опубликована: Дек. 1, 2023

Язык: Английский

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Vibration control of FG-pipe conveying fluid using a nonlinear absorber with nonlinear damping in longitudinal direction

Mechanical Systems and Signal Processing, Год журнала: 2024, Номер 223, С. 111875 - 111875

Опубликована: Авг. 27, 2024

Язык: Английский

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Stochastic analysis of an acoustic black hole piezoelectric energy harvester under Gaussian white noise excitation

Applied Mathematical Modelling, Год журнала: 2024, Номер 131, С. 22 - 32

Опубликована: Апрель 5, 2024

Язык: Английский

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Research on energy acquisition technology based on one-dimensional acoustic black hole effect

AIP Advances, Год журнала: 2023, Номер 13(3)

Опубликована: Март 1, 2023

In this paper, a piezoelectric energy harvester based on periodic one-dimensional acoustic black holes (ABH) is proposed to improve efficiency. The harvesting performance of the with different ABH-structures was numerically simulated through commercial software, COMSOL Multiphysics. Finally, an experimental platform set up test several samples. results show that aggregation effect bilateral ABH beam better than traditional beam. optimal impedance matching, maximum output power type 3 112 mW, which 2.8 times ABH. simulation and efficiency much higher It expected make some contributions further development lightweight wireless sensors, equipment service life, bearing fault diagnosis, so on.

Язык: Английский

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Analysis of dynamic modeling and power flow of ABH laminated composite thin beam with elastic boundaries

Thin-Walled Structures, Год журнала: 2024, Номер unknown, С. 112485 - 112485

Опубликована: Сен. 1, 2024

Язык: Английский

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Study on the Influence Factors on Harvesting Capacity of a Piezoelectric Vibration Energy Harvesting System Covered on Curved Beam with Acoustic Black Hole

Shock and Vibration, Год журнала: 2023, Номер 2023, С. 1 - 13

Опубликована: Дек. 4, 2023

The acoustic black hole (ABH) structures have been shown to great potential for energy harvesting. Within an ABH, the bending wave velocity decreases rapidly and phase accumulates, resulting in localised accumulation. It is very significant that can be harvested power supplied microelectronic devices. How improve harvesting capacity a problem needs solved. Previous research on of straight beams flat plates with ABH has yielded wealth results. However, practical engineering, curved are also commonly found. Given differences structure, it significance study influence factors piezoelectric vibration system covered beam hole. First, characteristics analysed by finite element method accumulation observed. Then, studied means electromechanical coupling model FEA; found lower high frequency. reason this solved dividing size sheet array layout. Based this, layout cells focused on. In addition, resistance value, material property, curvature analysed. Some meaningful results obtained. These provide guidance design optimisation ABH.

Язык: Английский

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