Energy harvesting using a magnetostrictive transducer based on switching control

Liu, An; GOTO, Keiju; KOBAYASHI, Yuusuke; Hara, Yushin; Jia, Yu; Shi, Yu; Soutis, Constantinos; Kurita, Hiroki; Narita, Fumio; Otsuka, Kiyoshi; Makihara, Kanjuro

doi:10.1016/j.sna.2023.114303

Cited by 12 publications

(3 citation statements)

References 35 publications

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“…Vibration control technologies employing magnetostrictive actuators have garnered significant interest [6][7][8][9]. There has been extensive research performed on miniaturized magnetostrictive actuators comprising electric circuits driven by their energy conversion capabilities [10][11][12]. However, when a magnetostrictive actuator is directly used for vibration control, its performance is relatively limited.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Magnetostrictive-Actuated Semi-Active Control Methods Based on Synchronized Switching

Li,

Kobayashi,

Hara

et al. 2024

Actuators

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Three distinct synchronized switching circuits based on a magnetostrictive actuator are compared in this paper to examine their control mechanisms and circuit characteristics. These circuits include a semi-active shunt circuit, a semi-active current inversion and amplification circuit, and a semi-active automatic current inversion and amplification circuit. Each circuit type employs an additional electronic switch. The synchronized switching method enables the rational control of the circuit current generated by the magnetostrictive actuator to fulfill any desired control strategy. Simulation and experimental results on a 10-bay truss structure reveal that the three circuits can effectively adjust the polarity of the induced current as needed. The three circuits are then compared to thoroughly analyze their unique characteristics and explain their respective advantages and dis-advantages. Using the comparison results, various options available for control circuit design are demonstrated.

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Section: Introductionmentioning

confidence: 99%

Comparison of Magnetostrictive-Actuated Semi-Active Control Methods Based on Synchronized Switching

Li,

Kobayashi,

Hara

et al. 2024

Actuators

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“…In addition, Terfenol-D has the advantages of high energy density, fast response speed, and control accuracy for the application in intelligent devices. Owing to its significant characteristics, it can be widely used in active vibration control, micro-positioning mechanism, energy harvesting system, and ultrasonic machining [ 1 , 2 , 3 , 4 ]. When used as a giant magnetostrictive transducer driver element, Terfenol-D is capable of generating large output characteristics under the application of exciting magnetic fields, a bias magnetic field, and a prestress.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Characteristic Model of Giant Magnetostrictive Transducer with Double Terfenol-D Rods

Dong

2023

Micromachines

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Giant magnetostrictive transducer can be widely used in active vibration control, micro-positioning mechanism, energy harvesting system, and ultrasonic machining. Hysteresis and coupling effects are present in transducer behavior. The accurate prediction of output characteristics is critical for a transducer. A dynamic characteristic model of a transducer is proposed, by providing a modeling methodology capable of characterizing the nonlinearities. To attain this objective, the output displacement, acceleration, and force are discussed, the effects of operating conditions on the performance of Terfenol-D are studied, and a magneto-mechanical model for the behavior of transducer is proposed. A prototype of the transducer is fabricated and tested to verify the proposed model. The output displacement, acceleration, and force have been theoretically and experimentally studied at different working conditions. The results show that, the displacement amplitude, acceleration amplitude, and force amplitude are about 49 μm, 1943 m/s2, and 20 N. The error between the model and experimental results are 3 μm, 57 m/s2, and 0.2 N. Calculation results and experimental results show a good agreement.

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“…Since that time, researchers have developed various magnetostrictive materials such as Tb-Dy-Fe alloys (terfenol-D), Fe-Ga alloys (galfenol), Fe-Co alloys, and CoFe 2 O 4 (cobalt ferrites) [14][15][16][17][18] . Magnetostrictive materials, composites, and devices are also attracting attention in the energy harvesting field [19][20][21][22][23][24] . Terfenol-D and galfenol are well-known giant magnetostrictive alloys showing good magnetostrictive properties at room temperature, but are brittle and expensive 1,16 .To overcome the brittleness of magnetostrictive materials, many researchers have dispersed magnetostrictive particles through a polymer matrix, forming magnetostrictive polymer composites (MPCs) 25 .…”

mentioning

confidence: 99%

Negative magnetostrictive paper formed by dispersing CoFe2O4 particles in cellulose nanofibrils

Keino

Rova

Gallet--Pandellé

et al. 2023

Sci Rep

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Polymers are often combined with magnetostrictive materials to enhance their toughness. This study reports a cellulose nanofibril (CNF)-based composite paper containing dispersed CoFe2O4 particles (CNF–CoFe2O4). Besides imparting magnetization and magnetostriction, the incorporation of CoFe2O4 particles decreased the ultimate tensile strength and increased the fracture elongation of the CNF–CoFe2O4 composite paper. CNF was responsible for the tensile properties of CNF–CoFe2O4 composite paper. Consequently, the magnetic and magnetostrictive properties and tensile properties of CNF–CoFe2O4 composite paper can be controlled by changing the mixture ratio of CNF and CoFe2O4 particles.

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Energy harvesting using a magnetostrictive transducer based on switching control

Cited by 12 publications

References 35 publications

Comparison of Magnetostrictive-Actuated Semi-Active Control Methods Based on Synchronized Switching

Comparison of Magnetostrictive-Actuated Semi-Active Control Methods Based on Synchronized Switching

Dynamic Characteristic Model of Giant Magnetostrictive Transducer with Double Terfenol-D Rods

Negative magnetostrictive paper formed by dispersing CoFe2O4 particles in cellulose nanofibrils

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