Design and performance study of low frequency magnetic coupling bistable piezoelectric and electromagnetic energy harvester

Energy, Год журнала: 2025, Номер unknown, С. 135178 - 135178

Опубликована: Фев. 1, 2025

Язык: Английский

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Performances Investigation of Multi-Configuration Connections in Piezoelectric Energy Harvester

Journal of Vibration Engineering & Technologies, Год журнала: 2025, Номер 13(1)

Опубликована: Янв. 1, 2025

Язык: Английский

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A magnetic plucking frequency up-conversion piezoelectric energy harvester with nonlinear energy sink structure

Applied Energy, Год журнала: 2024, Номер 376, С. 124326 - 124326

Опубликована: Авг. 24, 2024

Язык: Английский

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A novel magnet-spring synergistic orthogonal piezoelectric vibration energy harvester

Mechanical Systems and Signal Processing, Год журнала: 2025, Номер 230, С. 112600 - 112600

Опубликована: Март 26, 2025

Язык: Английский

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A New Type of Time-varying Terminal Load Energy Harvester: Design, Simulation, and Experiments

Energy, Год журнала: 2024, Номер unknown, С. 133882 - 133882

Опубликована: Ноя. 1, 2024

Язык: Английский

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Harnessing vibration energy by inverted fork harvester with electromagnetic and piezoelectric effects

Mechanical Systems and Signal Processing, Год журнала: 2025, Номер 229, С. 112549 - 112549

Опубликована: Март 9, 2025

Язык: Английский

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Applications of multi-magnet coupling: switching between vibration isolation and energy harvesting

Sensor Review, Год журнала: 2025, Номер unknown

Опубликована: Март 13, 2025

Purpose Sky-hook stiffness can significantly influence the vibration characteristics of a system across its entire frequency range. This study aims to develop an Adjustable Stiffness Multi-Magnetic Coupling Cantilever (ASMCC) that be adjusted between reduction and energy-harvesting functions using sky-hook stiffness. Design/methodology/approach investigates effects magnet spacing on magnetic force nonlinear within system. Both simulation experimental methods are used explore under various configurations. Performance evaluations isolators energy harvesters conducted for specific spacings. Findings The results indicate introducing multiple magnets redistributes field, thereby enhancing isolation capabilities ASMCC. Experimental show ASMCC reduce resonance peak by up 7.7 dB shift 26.4 Hz in mode. In mode, it achieves output voltage 89 V, demonstrating excellent performance this structure. Originality/value presents versatile device capable both harvesting, strong adaptability environments. It provides valuable insights design, modeling optimization magnetically coupled harvesters.

Язык: Английский

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A Passive Self-Tuning Piezoelectric Energy Harvester Based on a Spring-Slider Structure for Broadband Vibration Energy Harvesting

Journal of Vibration Engineering & Technologies, Год журнала: 2025, Номер 13(5)

Опубликована: Апрель 13, 2025

Язык: Английский

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A piezoelectric-electromagnetic hybrid energy harvester for rotational motion driven by magnetic repulsion

Smart Materials and Structures, Год журнала: 2024, Номер 33(9), С. 095012 - 095012

Опубликована: Июль 28, 2024

Abstract Harvesting energy from rotational motion is an efficient and widely used technology that provides power support for various electronic devices systems by converting mechanical kinetic into electrical energy. This harvesting method shows great potential advantages in industrial automation, transportation, wind generation, smart homes. study proposes a piezoelectric-electromagnetic hybrid harvester (HEH) driven magnetic repulsion. HEH comprises of two parts: piezoelectric (PEH) electromagnetic (EMH). utilizes the drive reciprocating to enhance collection efficiency PEH EMH. Additionally, adding effect ends bimorph sheets, spectrum expanded. Its parameters are analyzed using theoretical analysis simulation, experimental testbed established explore influence output performance. The results indicate reaches its maximum when there 2 circular magnets on rotor, gap distance 15 mm, mass blocks at end sheet. EMH outputs 173.36 V 4.81 V, respectively. 53.45 mW. density can reach 6.818 mW cm −3 . Compared with EMH, performance improved 46.94% 174.95%, When rotation speed 500 r min −1 , effortlessly light up 80 LEDs. all demonstrate low-power sensors.

Язык: Английский

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Piezoelectric energy harvester with tip 3D-printed bi-stable asymmetric raceway for effective harvesting of ultralow-frequency and low-level vibration energy

Mechanical Systems and Signal Processing, Год журнала: 2024, Номер 224, С. 112054 - 112054

Опубликована: Окт. 28, 2024

Язык: Английский

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