Pendulum Energy Harvesters: A Review

Chen, Jiatong; Bao, Bin; Liu, Jinlong; Wu, Yu-Fei; Wang, Quan

doi:10.3390/en15228674

Cited by 13 publications

(8 citation statements)

References 122 publications

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“…At the pendulum's end, the mechanical energy is transformed into electrical power via a generating mechanism [31,32]. These mechanisms include the utilization of piezoelectric materials [33][34][35], electromagnetic induction [36,37], or mechanical-to-electrical transducers [38][39][40][41]. The energy that is produced can subsequently be used to power electronics or could be stored in a battery.…”

Section: Elastic Cord Pendulummentioning

confidence: 99%

“…Energy harvesting techniques from variable-length pendulums offer sustainable and environmentally friendly alternatives to conventional power sources. They have diverse applications, ranging from powering small electronic devices like wearable electronics, wireless sensor networks, and condition monitoring systems [36,43,47,50]. Furthermore, energy harvesting can effectively supply power to remote sensors across various domains, including industrial, commercial, and medical applications.…”

Section: Electromagnetic Inductionmentioning

confidence: 99%

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Variable-Length Pendulum-Based Mechatronic Systems for Energy Harvesting: A Review of Dynamic Models

Yakubu,

Olejnik,

Adisa

2024

Energies

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The ability to power low-power devices and sensors has drawn a great deal of interest to energy harvesting from ambient vibrations. The application of variable-length pendulum systems in conjunction with piezoelectric or electromagnetic energy-harvesting devices is examined in this thorough analysis. Because of their changeable length, such pendulums may effectively convert mechanical vibrations into electrical energy. This study covers these energy-harvesting systems’ basic theories, design concerns, modeling methods, and performance optimization strategies. This article reviews several studies that look at dynamic models, the effects of damping coefficients, device designs, and excitation parameters on energy output. The advantages and disadvantages of piezoelectric and electromagnetic coupling techniques are demonstrated by comparative research. This review also looks at technical advances and future research prospects in variable-length, pendulum-based energy harvesting. An expanded model for an energy harvester based on a variable-length pendulum derived from the modified, swinging Atwood machine is more specifically presented. This model’s numerical simulations, estimated current and voltage outputs, and produced power from the electromagnetic and piezoelectric devices integrated at various points in a 4-DOF variable-length pendulum model all indicate encouraging results. This necessitates extra study, changes, and optimizations to improve the usefulness of the proposed model. Finally, important dynamic models on developing variable-length, pendulum-based energy harvesters for usage in a range of applications to create sustainable energy are summarized.

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Section: Elastic Cord Pendulummentioning

confidence: 99%

Section: Electromagnetic Inductionmentioning

confidence: 99%

Variable-Length Pendulum-Based Mechatronic Systems for Energy Harvesting: A Review of Dynamic Models

Yakubu,

Olejnik,

Adisa

2024

Energies

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“…The oscillations in the pendulum are induced through the supports which are subjected to ambient excitations. While the physics of EH from such devices are well understood and have been discussed extensively in the literature [7,8,12,13], the focus of this study is on investigating the effects of the network topology on the yield efficiency per harvester. Specifically, the performance of N coupled EH arranged in a regular topology vis-a-vis complex networked topology is investigated.…”

Section: Introductionmentioning

confidence: 99%

Fault resilience in network of energy harvesters

Pranesh,

Gupta

2024

J. Phys. Complex.

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Energy harvesters (EH) that scavenge energy from ambient environment are gaining popularity and are used for powering low demand devices on account of their low power outputs. Enhancement of the power is achieved through an array or network of identical EH. The focus of this study is on investigating how the network topology affects the harvesting efficiency per EH, using complex network theory. The studies are presented with respect to vibration induced EH, specifically, the commonly used network of coupled pendulums oscillating in a magnetic field, with the pendulum supports being subjected to vibrations. Questions on the EH efficiency are investigated with respect to the number of EH in the network, its topology and the effects of faults which lead to loss of regularity. Additionally, the effects of parametric random vari- abilities in the individual EH are investigated with respect to the harvesting efficiency. This study shows that EH efficiency is best for regular networks, can be enhanced by increasing connectivity but up to a limit and is resilient against few local faults. The performance drops with larger number of faults or due to parametric uncertainties. The findings of this study are expected to be of use in design and maintenance of EH networks.

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“…In this case, the oscillation of the arm (pendulum) during walking feeds the watch mechanism, which is used to store energy. Large movements with much greater applied force can generate higher energy, which can then be used to sustain the functioning of various devices (e.g., cell phones) and, in some cases, partially or totally, can even sustain the energy requirements of a gym or sports facility, particularly if harvested at the same time from many individuals [3]. The mechanical efficiency of the human body is in the range of 15-30%, which means that 70% of the energy provided by food is dissipated into heat [4].…”

Section: Introductionmentioning

confidence: 99%

Human Power Production and Energy Harvesting

Cicchella

2023

Encyclopedia

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This entry presents a holistic examination of the problem of harvesting energy from the human body. With the advent of the industrial revolution, in modern times, there is less and less need for physical human work; at the same time, motion is essential for health. Thus, sports and physical leisure activities have seen a dramatic increase in popularity. Until several decades ago, energy consumption was not an issue, at least in developed countries, but in recent years, it has become more and more evident that energy resources are finite and that there are limits to how much anthropic pressure the environment can sustain; one evident outcome is global warming. The repurposing of human energy also has psychological benefits, making people socially responsible and transforming otherwise wasted potential into a rewarding activity. Thus, on a small scale, over time, it has become evident that re-using and saving energy are vital. Humans can produce a large amount of energy through physical work, but over the past few decades, technologies have been developed to store and reuse energy that would otherwise be wasted. Some interesting applications and a critical review of the problem, which is linked to human metabolism and sport, are presented.

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Pendulum Energy Harvesters: A Review

Cited by 13 publications

References 122 publications

Variable-Length Pendulum-Based Mechatronic Systems for Energy Harvesting: A Review of Dynamic Models

Variable-Length Pendulum-Based Mechatronic Systems for Energy Harvesting: A Review of Dynamic Models

Fault resilience in network of energy harvesters

Human Power Production and Energy Harvesting

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