Production of vibration energy harvester with impact-sliding structure using magnetostrictive Fe-Co-V alloy rod

Yamaura, Shin Ichi; Nakajima, Takashi; Kamata, Yuki; Sasaki, Tomohiro; Sekiguchi, Tetsushi

doi:10.1016/j.jmmm.2020.167260

Cited by 19 publications

(5 citation statements)

References 25 publications

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“…They developed a bending-type energy harvester where a longitudinal force was applied at the head of the moving part of the beam. Yamaura et al (2020) proposed an axial-type vibration energy harvester with an impactsliding structure. A magnetostrictive rod is fixed magnetically, not mechanically.…”

Section: Introductionmentioning

confidence: 99%

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Magnetostrictive energy conversion ability of Iron Cobalt Vanadium alloy sheet: Experimental and theoretical evaluation

Zangho,

Liu,

Zhang

et al. 2024

Journal of Intelligent Material Systems and Structures

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The increasing demand for autonomous devices has made the concept of energy harvesting a significant industrial and academic point of interest. In this domain, an ideal magnetostrictive material for converting mechanical vibrations into electrical energy in a cost-effective way (i.e. competing with the price of primary batteries) remains to be determined. Iron-Cobalt-Vanadium (Permendur, Co49-Fe49-V2) is a promising candidate: it is a soft ferromagnetic material with high magnetization saturation, high magnetostrictive coefficients, low price, and good availability. In this study, the experimental magnetic characterization and simulation of Permendur sheets under tensile stress were performed, and their energy conversion capabilities were assessed. The conversion ability was predicted using thermodynamic Ericsson cycles from reconstructed anhysteretic curves. A maximum of 10.45 mJ cm−3 energy density was obtained under a tensile stress of 480 MPa and a magnetic excitation of 5.5 kA m−1. Then, an additional estimation was proposed to account for the hysteresis losses. For this, major hysteresis loops at different stress levels were considered, yielding an energy density of 3.52 mJ cm−3. Finally, experimental Ericsson cycles were performed to prove the feasibility of the conversion and corroborate the energy level predictions.

show abstract

Section: Introductionmentioning

confidence: 99%

“…Yamaura et al (2020) proposed an axial-type vibration energy harvester with an impact-sliding structure. A magnetostrictive rod is fixed magnetically, not mechanically.…”

Section: Introductionmentioning

confidence: 99%

Magnetostrictive energy conversion ability of Iron Cobalt Vanadium alloy sheet: Experimental and theoretical evaluation

Zangho,

Liu,

Zhang

et al. 2024

Journal of Intelligent Material Systems and Structures

View full text Add to dashboard Cite

show abstract

“…Given the above problems, this paper will establish the holistic theoretical model through the magnetostrictive constitutive equations, 26,27 and deduce the corresponding analytical solutions. Thus, the established model will provide theoretical support for the quantitative analysis of transducer output performance.…”

Section: Introductionmentioning

confidence: 99%

“…But most explorations pay attention to optimize the whole structure of transducer, rarely investigate the influence of internal dimensional parameters on the output performance. 14,24,25 Given the above problems, this paper will establish the holistic theoretical model through the magnetostrictive constitutive equations, 26,27 and deduce the corresponding analytical solutions. Thus, the established model will provide theoretical support for the quantitative analysis of transducer output performance.…”

Section: Introductionmentioning

confidence: 99%

Exploiting the voltage sensitivity of magnetostrictive transducer for energy harvesting and sensor applications

Dai

Zhao

Yang

et al. 2023

Measurement and Control

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Magnetostrictive transducer, as a kind of high-efficiency transducer, has a broad application in the field of energy harvesting and sensor. However, the voltage generating performance of the transducer limits its application. This paper will endeavor to quantify the load-induced voltage of magnetostrictive transducer by developing a holistic theoretical model and deriving the corresponding analytical solution. On this basis, this paper proposed the concept of voltage sensitivity in transducer optimization, which could quantitatively analyze the normalized voltage generated by a unit excitation. Based on the theoretical simulation and experimental validation, the voltage sensitivities of magnetostrictive transducer under different mechanical loads are investigated. The parametric analysis will be conducted to further optimize the transducer structure to enhance its open-circuit and load voltage. The works of this paper could be instructive to guide magnetostrictive transducer design in sensing and energy harvesting applications.

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“…The collection of energy from the environment and its conversion into electrical energy for use in electronic devices has been the subject of much research to meet the power requirements of these devices [ 6 ]. Energy harvesting technologies involve conversion mechanisms such as electromagnetic [ 7 , 8 ], triboelectric [ 9 , 10 ], electrostatic [ 11 , 12 ], magnetostrictive [ 13 , 14 ], thermoelectric [ 15 , 16 ], piezoelectric [ 17 , 18 ] and photovoltaic [ 19 , 20 ]. Energy harvesters typically use one or more conversion mechanisms to convert energy from nature: tides, vibrations, air currents, heat, etc., into electrical energy.…”

Section: Introductionmentioning

confidence: 99%

Improvement of the Airflow Energy Harvester Based on the New Diamagnetic Levitation Structure

et al. 2023

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This paper presents an improved solution for the airflow energy harvester based on the push–pull diamagnetic levitation structure. A four-notch rotor is adopted to eliminate the offset of the floating rotor and substantially increase the energy conversion rate. The new rotor is a centrally symmetrical-shaped magnet, which ensures that it is not subjected to cyclically varying unbalanced radial forces, thus avoiding the rotor’s offset. Considering the output voltage and power of several types of rotors, the four-notch rotor was found to be optimal. Furthermore, with the four-notch rotor, the overall average increase in axial magnetic spring stiffness is 9.666% and the average increase in maximum monostable levitation space is 1.67%, but the horizontal recovery force is reduced by 3.97%. The experimental results show that at an airflow rate of 3000 sccm, the peak voltage and rotation speed of the four-notch rotor are 2.709 V and 21,367 rpm, respectively, which are 40.80% and 5.99% higher compared to the three-notch rotor. The experimental results were consistent with the analytical simulation. Based on the improvement, the energy conversion factor of the airflow energy harvester increased to 0.127 mV/rpm, the output power increased to 138.47 mW and the energy conversion rate increased to 58.14%, while the trend of the levitation characteristics also matched the simulation results. In summary, the solution proposed in this paper significantly improves the performance of the airflow energy harvester.

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Production of vibration energy harvester with impact-sliding structure using magnetostrictive Fe-Co-V alloy rod

Cited by 19 publications

References 25 publications

Magnetostrictive energy conversion ability of Iron Cobalt Vanadium alloy sheet: Experimental and theoretical evaluation

Magnetostrictive energy conversion ability of Iron Cobalt Vanadium alloy sheet: Experimental and theoretical evaluation

Exploiting the voltage sensitivity of magnetostrictive transducer for energy harvesting and sensor applications

Improvement of the Airflow Energy Harvester Based on the New Diamagnetic Levitation Structure

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