Design and construction of a resonant magnetostrictive motor

Claeyssen, F.; Lhermet, Nicolas; Letty, R. Le; Bouchilloux, Philippe

doi:10.1109/20.539139

Cited by 22 publications

(12 citation statements)

References 3 publications

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“…the magnitude of both fields should be the same. Considering this fact, the current flowing through the Terfenol-D rod can be estimated by using the following formula: 11 (4) where, r is the radius of Terfenol-D rod, and x the radial coordinate on the Terfenol-D rod. Inserting these values into Eq.…”

Section: Conceptual Design Modeling and Simulationmentioning

confidence: 99%

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Rotary magnetostrictive motor using helical magnetic field

Park

Lee

Noh

2016

Int. J. Precis. Eng. Manuf.

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This paper presents a proof-of-concept of a rotary magnetostrictive motor (MAGMOTOR) using helical magnetic field, B H . The helical magnetic field is made when a longitudinal magnetic field and a circumferential magnetic field are applied simultaneously to the Terfenol-D rod of length L, fixed at one end. The circumferential magnetic field is established by a current-carrying specimen on the axis of the rod specimen instead of being established by a toroid. The concept of the MAGMOTOR is the utilization of an intrinsic property of a giant magnetostrictive material, i.e., Terfenol-D. The magnetic circuit modeling is used to obtain the input values for the simulation. The simulation results clearly reveal the generation of the helical magnetic field along the Terfenol-D rod. In addition, the magnitude difference in B H between a current-carrying and a toroid MAGMOTORs is estimated to be 3 percent. The prototype is made and subjected to the experimental characterization. The rotational speed of the rotors increases with the increase of both current and frequency, and then decreases with further increase of the both. The peak rotational speed reaches 16 rpm at a frequency of 400 Hz with a rotor weight of 2.7 g.

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Section: Conceptual Design Modeling and Simulationmentioning

confidence: 99%

“…Akuta 3 built a MAGMOTOR and demonstrated a rotational speed of 0.5 rpm, and a torque of 3 Nm. Another notable design was made by Claeyssen et al, 4 which is based on elliptical vibration. They reported a rotational speed of 16.7 rpm and a torque of 2.1 Nm.…”

Section: Introductionmentioning

confidence: 99%

Rotary magnetostrictive motor using helical magnetic field

Park

Lee

Noh

2016

Int. J. Precis. Eng. Manuf.

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“…Packages specifically designed for magnetostrictives are available, (e.g., the most widely used is AULA from Magsoft, associated with the French company Cedrat). ATILA has been used successfully for modeling a variety of Terfenol-D transducers by Claeyssen and collaborators (Claeyssen 1989;Claeyssen, Bossut et al 1990;Claeyssen and Boucher 1991;Claeyssen, Lhermet et al 1996). In addition, many packages support "smart" coupled elements, such as piezomagnetic elements, which can be implemented for modeling the Terfenol-D core.…”

Section: ; Butler 1988)mentioning

confidence: 99%

“…For example, ATILA, which solves equations similar to 4.10a and b, has been used successfully for modeling a variety of Terfenol-D transducers (Claeyssen 1989;Claeyssen, Bossut et al 1990;Claeyssen and Boucher 1991;Claeyssen, Lhermet et al 1996).…”

Section: Nonlinear Elastomagnetic Modelsmentioning

confidence: 99%

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Design, analysis, and modeling of giant magnetostrictuve transducers

Calkins

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This manusciipt has been rqjroduced from the microfilm master. UMI films the text directfy from the original or copy submitted. Thus, some thesis and dissertation copies are in typewriter face, while others may be from any type of conqmter printer.Hie qnali^ of this leprodvction is dq)endait npon the qnali^ of the copy sabmitted. Broken or indistinct print, colored or poor quality illustrations and photogr^hs, print bleedthrough, substandard marginc^ and improper alignment can adversely affect reproduction.In the unlikely event that the author did not send UMI a complete manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material had to be rraioved, a note win indicate the deletion.Oversize materials (e.g., nu^ drawings, charts) are reproduced by sectioning the original, beginning at the upper left-hand comer and contimiing from left to right in equal sections with small overlaps. Each original is also photographed in one exposure and is included in reduced form at the back of the book.Photogr^hs included in the original manuscript have been reproduced xerographically in this copy. Higher quality 6" x 9" black and white photographic prints are available for any photogr^hs or illustrations appearing in this copy for an additional charge. Contact UMI directfy to order. Terfenol-D exhibits giant magnetostriction which has significant converse effects. A Bell & Howell informationTherefore, at the same time that the magnetization of the material changes its shape, a su«ss on the material changes its magnetization. This converse effect explains, in part, the influence of stress on performance and opens the door to applications of sensing, passive damping, and electrical energy generation.This complicated nature has often led to frustration and skepticism on the part of the engineer and technologist interested in applications, prompting talk of the "tricky",

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Magnetostrictive Materials

Dapino

2002

Encyclopedia of Smart Materials

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Magnetostrictive materials are a class of smart materials that can convert energy between the magnetic and elastic states. For this reason, magnetostrictive materials and devices based on these materials are often referred to as transducers . Due to the bidirectional nature of this energy exchange, magnetostrictive materials can be employed for both actuation and sensing. Alloys based on the transition metals iron, nickel, and cobalt in combination with certain rare‐earth elements are currently employed in actuator and sensor systems in a broad range of industrial, biomedical, and defense applications. Because magnetostriction is an inherent property of ferromagnetic materials, it does not degrade over time as do some poled piezoelectric substances. In addition, newer magnetostrictive materials provide strains, forces, energy densities, and coupling coefficients that compete favorably with more established technologies such as those based on piezoelectricity. As evidenced by the ever‐increasing number of patented magnetostrictive systems, transducer designers are finding new opportunities to employ magnetostrictive materials in a wide variety of applications ranging from stand‐alone transducers to complex smart structure systems. This article provides an overview of magnetostrictive materials. A description of the physical origin of magnetostriction and a discussion of material behavior are given. A subsequent section is devoted to linear magnetostriction, and other magnetostrictive effects are discussed. Finally, a discussion of current transducer designs and modeling techniques is presented.

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Design and construction of a resonant magnetostrictive motor

Cited by 22 publications

References 3 publications

Rotary magnetostrictive motor using helical magnetic field

Rotary magnetostrictive motor using helical magnetic field

Design, analysis, and modeling of giant magnetostrictuve transducers

Magnetostrictive Materials

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