Modeling and experiment of a handy motion driven, frequency up-converting electromagnetic energy harvester using transverse impact by spherical ball

Halim, Miah A.; Park, Jae Young

doi:10.1016/j.sna.2015.03.024

Cited by 53 publications

(32 citation statements)

References 29 publications

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“…[24][25][26] However, human motion is more difficult to capture than typical vibrations because it is slow, often nonperiodic, and occurs along all three linear and rotational axes. Several basic mechanical architectures for the energy capture system have been proposed, including eccentrically weighted rotors with 27 and without a restoring spring, 4,28-34 linear slides or oscillators, 5,[35][36][37][38][39] and a spherical magnet rolling inside a spherical cavity. 40,41 (See Figure 4.) Each design has its advantages, but the eccentric rotor seems to be the most prevalent and has the advantage that it can be excited by linear or rotational motion about any axis and it responds well to slow motions.…”

Section: Inertial Energy Harvesting System Considerationsmentioning

confidence: 99%

Materials and approaches for on-body energy harvesting

Roundy

Trolier‐McKinstry

2018

MRS Bull.

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Section: Inertial Energy Harvesting System Considerationsmentioning

confidence: 99%

Materials and approaches for on-body energy harvesting

Roundy

Trolier‐McKinstry

2018

MRS Bull.

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“…In particular, human body‐induced vibrations, including walking, running, jumping, and handshaking, are low frequency (less than 10 Hz), have large amplitudes, and are time varying . One major challenge to the sufficient power generation from low frequency biomechanical vibrations is due to power loss found in conventional resonant‐based energy harvesters operating at low frequencies . To combat this, a nonresonant, nonlinear energy harvesting technique could be employed at low frequency and under low magnitude excitations.…”

Section: Introductionmentioning

confidence: 99%

“…[20][21][22][23][24] One major challenge to the sufficient power generation from low frequency biomechanical vibrations is due to power loss found in conventional resonantbased energy harvesters operating at low frequencies. [25][26][27] To combat this, a nonresonant, nonlinear energy harvesting technique could be employed at low frequency and under low magnitude excitations. The design of sophisticated mechanical systems requires new energy conversion mechanisms for micro-and nanogenerators in the energy harvesting field.…”

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confidence: 99%

Biomechanical Energy‐Driven Hybridized Generator as a Universal Portable Power Source for Smart/Wearable Electronics

Rahman

Rana

Salauddin

et al. 2020

Advanced Energy Materials

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The fast growth of smart electronics requires novel solutions to power them sustainably. Portable power sources capable of harvesting biomechanical energy are a promising modern approach to reduce battery dependency. Herein, a novel elastic impact‐based nonresonant hybridized generator (EINR‐HG) is reported to effectively harvest biomechanical energy from diverse human activities outdoors. Through the rational integration of a nonlinear electromagnetic generator with two contact‐mode triboelectric nanogenerators, the proposed EINR‐HG generates hybrid electrical output simultaneously under the same mechanical excitations. By introducing a flux‐concentrator with a nanowire‐nanofiber surface modification, significant improvement in the energy harvesting efficiency of the EINR‐HG is achieved. After optimizing using simulations and vibration tests, the as‐fabricated EINR‐HG delivers an outstanding normalized power density of 3.13 mW cm−3 g−2 across a matching resistance of 1.5 kΩ at 6 Hz under 1 g acceleration. Under human motion testing, the EINR‐HG generates an optimal output power of 131.4 mW with horizontal handshaking. With a customized power management circuit, the EINR‐HG serves as a universal power source that successfully drives commercial smart electronics, including smart bands and smartphones. This work shows the massive potential of biomechanical energy‐driven hybridized generators for powering personal electronics and portable healthcare monitoring devices.

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“…As power is directly proportional to the operating frequency, the frequency-up conversion is implemented to achieve the desired amount of average power from human body movement. 48,49 Also due to frequency-doubling characteristics of some EMEH, more power is generated from low frequency. 50 Contrarily, by introducing switching damping, the resonant frequency can be altered but some loss also occurs in power outcome.…”

Section: Mechanismmentioning

confidence: 99%

Vibration energy harvesting: A review

et al. 2019

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This study is based on energy harvesting from vibration and deals with the comparison of different techniques. In the present scenario, energy harvesting has drawn the attention of researchers due to a rapid increase in the use of wireless and small-scale devices. So, there is a huge thirst among scientists to develop permanent portable power sources. In the surroundings, a lot of unutilized energy is wasted which can be collected and used for power generation. Research works have been extensively carried out to develop energy harvesting devices catering to the increasing needs of being efficient and economical. Effective energy harvesting mainly depends on the design of the transducer. Different types of design techniques, material properties, and availability of energy harvesters are reviewed in this paper. The paper aims to explore the advantages and limitations of different energy harvesting principles, advances, and findings of the recent past. This study also discusses some of the key ideas for the enhancement of power output. This paper provides a broad view of the energy harvesting system to the learners, which will facilitate them to design more efficient energy harvesting devices by using different principles.

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Modeling and experiment of a handy motion driven, frequency up-converting electromagnetic energy harvester using transverse impact by spherical ball

Cited by 53 publications

References 29 publications

Materials and approaches for on-body energy harvesting

Materials and approaches for on-body energy harvesting

Biomechanical Energy‐Driven Hybridized Generator as a Universal Portable Power Source for Smart/Wearable Electronics

Vibration energy harvesting: A review

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