A Hula-Hoop Energy-Harvesting System

Lu, Chung-Chin; Wang, Yu-Jen; Sung, Cheng Kuo; Chao, Pei-Jung

doi:10.1109/tmag.2011.2155636

Cited by 7 publications

(4 citation statements)

References 12 publications

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“…Recently, there has been scientific interest in hybrid translational-to-rotational (or rotary-translational) harvesting approaches, which have demonstrated high power density. [17][18][19][20][21] The harvester outlined in this letter is a hybrid rotary-translational device that uses cycloidal motion to combine a rotational aspect to an oscillatory based design. The power density of the harvester will be compared with other experimentally demonstrated devices.…”

mentioning

confidence: 99%

Hybrid rotary-translational vibration energy harvester using cycloidal motion as a mechanical amplifier

Moss

Hart

Burke

et al. 2014

Applied Physics Letters

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mentioning

confidence: 99%

Hybrid rotary-translational vibration energy harvester using cycloidal motion as a mechanical amplifier

Moss

Hart

Burke

et al. 2014

Applied Physics Letters

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“…Stanton et al [7] validated the use of a nonlinear energy harvester capable of bidirectional hysteresis, in which both hardening and softening responses within the quadratic potential field of a power-generating piezoelectric beam (with a permanent magnet end mass) are induced by tuning the nonlinear magnetic interactions. The development of a wide-bandwidth energy-harvesting device is a current research topic [8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Design of a Weighted-Rotor Energy Harvester Based on Dynamic Analysis and Optimization of Circular Halbach Array Magnetic Disk

2015

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This paper proposes the design of a weighted-rotor energy harvester (WREH) in which the oscillation is caused by the periodic change of the tangential component of gravity, to harvest kinetic energy from a rotating wheel. When a WREH is designed with a suitable characteristic length, the rotor's natural frequency changes according to the wheel rotation speed and the rotor oscillates at a wide angle and high angular velocity to generate a large amount of power. The magnetic disk is designed according to an optimized circular Halbach array. The optimized circular Halbach array magnetic disk provides the largest induced EMF for different sector-angle ratios for the same magnetic disk volume. This study examined the output voltage and power by considering the constant and accelerating plate-rotation speeds, respectively. This paper discusses the effects of the angular acceleration speed of a rotating wheel corresponding to the dynamic behaviors of a weighted rotor. The average output power is 399 to 535 microwatts at plate-rotation speeds from 300 to 500 rpm, enabling the WREH to be a suitable power source for a tire-pressure monitoring system.

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“…This technique increased the bandwidth of the device from 12±0.5 Hz to 11~14 Hz. The development of a wide-bandwidth energy harvesting device is a hot research topic and possesses a great challenge to researchers [7][8][9][10][11][12][13]. An energy harvester mounted on the inner tire was developed by Kanwa et al [14].…”

Section: Introductionmentioning

confidence: 99%

Design of weighted type energy harvester based on analysis of a wireless tire pressure monitor system

Wang

Lin

2014

IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society

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This paper proposes the design of a novel weighted-rotor energy harvester, which oscillates due to the periodic change of the tangential component of gravity, to harvest kinetic energy from a rotating wheel. Unlike traditional energy-harvesting devices, which have a fixed natural frequency, when the speed of the car increases, the centripetal acceleration of the rotating wheel also increases the rotor's natural frequency of oscillation. By employing a suitably-designed weight, the natural frequency of the rotor can match with the rotating frequency of the wheel at any speed, and the rotor oscillates at a large angle and angular velocity to generate a large amount of power. The models of power generation were derived by using Faraday's law of induction and Lorentz force law, which were followed by the numerical simulation performed to verify the correctness with experiments. The output voltage and power have been discussed considering the constant and accelerating plate rotation speed. When a 550 ohm resistor connected in series, the average output power is 399 to 535 micro-Watts at plate rotation speed from 300 to 500 rpm and is possible to be the power source for TPMS.

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A Hula-Hoop Energy-Harvesting System

Cited by 7 publications

References 12 publications

Hybrid rotary-translational vibration energy harvester using cycloidal motion as a mechanical amplifier

Hybrid rotary-translational vibration energy harvester using cycloidal motion as a mechanical amplifier

Design of a Weighted-Rotor Energy Harvester Based on Dynamic Analysis and Optimization of Circular Halbach Array Magnetic Disk

Design of weighted type energy harvester based on analysis of a wireless tire pressure monitor system

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