Hybrid Tunable Magnet Actuator: Design of a Linearized Force-Flux Tunable Magnet Actuator

William B. Hoekwater; Endre Ronaes; Hassan HosseinNia

doi:10.1109/TIE.2023.3285984

Hybrid Tunable Magnet Actuator: Design of a Linearized Force-Flux Tunable Magnet Actuator

William B. Hoekwater, Endre Ronaes, Hassan HosseinNia

Mechatronic Systems Design

Research output: Contribution to journal › Article › Scientific › peer-review

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Abstract

Recent studies have shown that tunable magnets (soft permanent magnets) can significantly reduce Joule heating in electromagnetic actuators. To achieve high motion accuracy and repeatability, this article proposes a novel actuator design with a linearized force-flux relation. In prior designs of variable reluctance tunable magnet actuators, the force and flux are related quadratically via a C-shaped actuator. Hybrid tunable magnet actuators based on biased fluxes are developed using lumped parameter models. Using finite element analysis, it is shown that the force-flux relation is symmetric linear around the mid position depending on the magnetic flux direction in the magnet. Within a position range of ±500 μm and a force range of ±20 N, the linear fit produces a negligible error of 0.08 N. Finally, this linear relationship is validated with a 0.03-N error in an experimental setup.

Original language	English
Pages (from-to)	5073-5082
Journal	IEEE Transactions on Industrial Electronics
Volume	71
Issue number	5
DOIs	https://doi.org/10.1109/TIE.2023.3285984
Publication status	Published - 2024

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

Actuators
Force
Magnetic circuits
Magnetic flux
Magnetic hysteresis
Magnetic separation
Magnetomechanical effects
Saturation magnetization
tunable magnets
variable reluctance actuator

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Hybrid_Tunable_Magnet_Actuator_Design_of_a_Linearized_ForceFlux_Tunable_Magnet_ActuatorFinal published version, 3.78 MB

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title = "Hybrid Tunable Magnet Actuator: Design of a Linearized Force-Flux Tunable Magnet Actuator",

abstract = "Recent studies have shown that tunable magnets (soft permanent magnets) can significantly reduce Joule heating in electromagnetic actuators. To achieve high motion accuracy and repeatability, this article proposes a novel actuator design with a linearized force-flux relation. In prior designs of variable reluctance tunable magnet actuators, the force and flux are related quadratically via a C-shaped actuator. Hybrid tunable magnet actuators based on biased fluxes are developed using lumped parameter models. Using finite element analysis, it is shown that the force-flux relation is symmetric linear around the mid position depending on the magnetic flux direction in the magnet. Within a position range of ±500 μm and a force range of ±20 N, the linear fit produces a negligible error of 0.08 N. Finally, this linear relationship is validated with a 0.03-N error in an experimental setup.",

keywords = "Actuators, Force, Magnetic circuits, Magnetic flux, Magnetic hysteresis, Magnetic separation, Magnetomechanical effects, Saturation magnetization, tunable magnets, variable reluctance actuator",

author = "Hoekwater, {William B.} and Endre Ronaes and Hassan HosseinNia",

note = "Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.",

year = "2024",

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AU - Ronaes, Endre

AU - HosseinNia, Hassan

N1 - Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2024

Y1 - 2024

N2 - Recent studies have shown that tunable magnets (soft permanent magnets) can significantly reduce Joule heating in electromagnetic actuators. To achieve high motion accuracy and repeatability, this article proposes a novel actuator design with a linearized force-flux relation. In prior designs of variable reluctance tunable magnet actuators, the force and flux are related quadratically via a C-shaped actuator. Hybrid tunable magnet actuators based on biased fluxes are developed using lumped parameter models. Using finite element analysis, it is shown that the force-flux relation is symmetric linear around the mid position depending on the magnetic flux direction in the magnet. Within a position range of ±500 μm and a force range of ±20 N, the linear fit produces a negligible error of 0.08 N. Finally, this linear relationship is validated with a 0.03-N error in an experimental setup.

AB - Recent studies have shown that tunable magnets (soft permanent magnets) can significantly reduce Joule heating in electromagnetic actuators. To achieve high motion accuracy and repeatability, this article proposes a novel actuator design with a linearized force-flux relation. In prior designs of variable reluctance tunable magnet actuators, the force and flux are related quadratically via a C-shaped actuator. Hybrid tunable magnet actuators based on biased fluxes are developed using lumped parameter models. Using finite element analysis, it is shown that the force-flux relation is symmetric linear around the mid position depending on the magnetic flux direction in the magnet. Within a position range of ±500 μm and a force range of ±20 N, the linear fit produces a negligible error of 0.08 N. Finally, this linear relationship is validated with a 0.03-N error in an experimental setup.

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KW - Magnetic circuits

KW - Magnetic flux

KW - Magnetic hysteresis

KW - Magnetic separation

KW - Magnetomechanical effects

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Hybrid Tunable Magnet Actuator: Design of a Linearized Force-Flux Tunable Magnet Actuator

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