Axe-Head-Shaped Piezoelectric Energy Harvesters Designed for Base and Tip Excitation-Based Energy Scavenging

Debnath, Bapi; Kumar, R.

doi:10.1109/tuffc.2020.3002917

Cited by 3 publications

(2 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[22][23][24] To harvest enough energy, the PEH not only needs to match the frequency of vibrations but also needs to convert mechanical energy into electrical energy efficiently. [25][26][27][28] The types of piezoelectric materials, sizes shapes of metal substrate, and sizes and shapes of piezoelectric elements, each of them has a significant impact on the power output of PEHs. [29][30][31][32][33][34] For example, the placement of piezoelectric elements over the length of a cantilever type PEHs has a 10.9% effect on the resonance frequency of cantilever beam.…”

Section: Introductionmentioning

confidence: 99%

Simulation and Experiment of Trapezoidal Beam‐Based Piezoelectric Energy Harvesters

Wang

et al. 2023

Energy Tech

View full text Add to dashboard Cite

Piezoelectric energy harvesters (PEHs) are thought to be one of the best ways to power wireless sensors. However, how to improve the electrical properties of PEHs is still a key matter. Herein, a trapezoidal beam (TB) is adopted to improve the electrical outputs of PEHs, where the elastic substrate and thinned piezoelectric ceramic element are combined to obtain a piezoelectric beam with 100 μm total thickness. The simulation results indicate that the TB‐based piezoelectric energy harvester (TB‐PEH) possesses a better electrical output performance than the traditional rectangular beam‐based piezoelectric energy harvester (RB‐PEH). The presented TB‐PEH can generate a 5.4 V voltage output, and an average power of 0.2 mW with the 55 kΩ optimal resistance. The 100, 220, and 470 μF capacitors are used to demonstrate charging from the TB‐PEH, and these capacitors are saturated at 5.1, 5.0, and 4.9 V during 40, 85, and 175 s charging time, respectively. The energy harvester can generate enough power to directly light up four light emitting diodes in real time, indicating its potential to be used as microenergy source for wireless sensor networks in mechanical vibration circumstance under harmonic vibration excitation. The proposed TB‐PEH is conclusively proved potential for charging low‐power electronic devices.

show abstract

Section: Introductionmentioning

confidence: 99%

Simulation and Experiment of Trapezoidal Beam‐Based Piezoelectric Energy Harvesters

Wang

et al. 2023

Energy Tech

View full text Add to dashboard Cite

show abstract

“…Nowadays, based on piezoelectric materials, many available energy sources can be converted into electricity, including wind energy, [20][21][22] water impact, [23][24][25][26] mechanical vibrations, [27][28][29][30] rotary motion, [31][32][33] and transportation facilities. [34][35][36][37] Among these energy sources, wind energy is relatively abundant and almost ubiquitous, and it is relatively easy to harvest.…”

Section: Introductionmentioning

confidence: 99%

Experiments and Analysis of a Nonlinear Sickle‐Shaped Cantilever Beam Piezoelectric Energy Harvester for Wind Energy Harvesting

Wang

et al. 2022

Physica Status Solidi (a)

View full text Add to dashboard Cite

Achieving broadband energy harvesting at low frequencies is a difficult area of research today. To solve the aforementioned problems, herein, a nonlinear sickle‐shaped cantilever beam piezoelectric energy harvester (S‐PEH) for wind energy harvesting is proposed. It has a high‐voltage output in the wind speed range of 5.37–18.23 m s−1. The S‐PEH is consists of a collector and a transducer. The collector converts wind energy into rotating mechanical energy and excites the transducer by means of magnetic coupling, thus realizing the conversion of mechanical energy to electrical energy. The special structure of the transducer's sickle‐shaped cantilever beam type can effectively harvest wind energy in low‐frequency environment and broaden the range of harvesting wind speed in high voltage. The structure and principle of S‐PEH are analyzed by theory and simulation and are experimentally verified. The results show that when the magnet on the rotor is 15 mm away from the magnet of the piezoelectric sheet, the transducer angle is 90°, the load resistance is 100 kΩ, the voltage of the blower is kept at 120 V, and the system has a maximum power of 563 μW. Moreover, it can successfully make low‐power electronics work.

show abstract

Design, modeling, and experimental verification of reversed exponentially tapered multimodal piezoelectric energy harvester from harmonic vibrations for autonomous sensor systems

Raja

Umapathy

Uma

et al. 2023

Int J Mech Mater Des

View full text Add to dashboard Cite

Axe-Head-Shaped Piezoelectric Energy Harvesters Designed for Base and Tip Excitation-Based Energy Scavenging

Cited by 3 publications

References 29 publications

Simulation and Experiment of Trapezoidal Beam‐Based Piezoelectric Energy Harvesters

Simulation and Experiment of Trapezoidal Beam‐Based Piezoelectric Energy Harvesters

Experiments and Analysis of a Nonlinear Sickle‐Shaped Cantilever Beam Piezoelectric Energy Harvester for Wind Energy Harvesting

Design, modeling, and experimental verification of reversed exponentially tapered multimodal piezoelectric energy harvester from harmonic vibrations for autonomous sensor systems

Contact Info

Product

Resources

About