Modeling the Effects of Magnetization Variations on a Permanent Magnet Based Levitation or Vibration Isolation System

Casteren, van Dteh Dave; Pluk, Kjw Kevin; Paulides, Jjh Johannes; Lomonova, E. A.

doi:10.4028/www.scientific.net/amm.416-417.366

Cited by 6 publications

(4 citation statements)

References 7 publications

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“…This has proven to be a good method to compensate for the force tolerances due to variations in the PMB parts (magnet material, magnetisation, magnet size, magnet position, magnet shape, etc.). The effects of deviations in the magnetization were modelled by Casteren et al 17…”

Section: Magnetic Bearing Conceptmentioning

confidence: 99%

Design of a highly reliable fan with magnetic bearings

Jungmayr

Marth

Panholzer

et al. 2015

Proceedings of the Institution of Mechanical Engineers, Part I:

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Bearing failures are, according to long-term analyses at ebm-papst St. Georgen GmbH & Co. KG, responsible for 90% of all compact fan breakdowns. The working life of a fan can be increased considerably by using a magnetically levitated fan, where the impeller has no contact with the stator. This paper presents the design of a low-cost magnetically levitated fan with passive magnetic bearings (PMBs) to stabilise radial and tilt deflections of the rotor. The application of an optimised viscoelastic support to the stator introduces sufficient damping to the passively stabilised degrees of freedom. The optimisation of the stiffness and damping and the design of the key components, namely the PMB, the active magnetic bearing and the passive damping device is discussed. Finally, the built prototype is presented and the measurement results are analysed.

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Section: Magnetic Bearing Conceptmentioning

confidence: 99%

Design of a highly reliable fan with magnetic bearings

Jungmayr

Marth

Panholzer

et al. 2015

Proceedings of the Institution of Mechanical Engineers, Part I:

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show abstract

“…In the last few years research has been conducted on permanent magnet based levitation and isolation systems e.g. in combination with mechanical means [2][3][4] or fully magnetic [5][6][7] and in [8] the effects of errors in the magnetization direction on permanent magnet based systems are discussed. Such systems can be characterized by 3 important characteristics, namely, force, stiffness, and resonance frequency.…”

Section: Introductionmentioning

confidence: 99%

Analytical stiffness calculations of a cone-shaped magnetic vibration isolator for a micro balance

Casteren

Paulides

Janssen

et al. 2013

2013 IEEE Energy Conversion Congress and Exposition

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The accuracy of a micro balance is highly dependent on the level of floor vibrations. One strategy to reduce floor vibrations is a magnetic vibration isolator. Magnetic vibration isolators have the possibility to obtain a zero-stiffness region, which is beneficial for attenuating vibrations. In this paper a 3D analytical magnetic surface charge model is used to calculate the stiffness of a coneshaped magnetic vibration isolator for different angles.

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“…In the last few years, research has been conducted on permanent-magnet-based levitation and isolation systems, e.g., in combination with mechanical [2]- [4] or fully magnetic [5]- [7] means, and in [8], the effects of errors in the magnetization direction on permanent-magnet-based systems are discussed. Such systems can be characterized by three important characteristics, i.e., force, stiffness, and resonance frequency.…”

mentioning

confidence: 99%

Analytical Force, Stiffness, and Resonance Frequency Calculations of a Magnetic Vibration Isolator for a Microbalance

Casteren

Paulides²,

Janssen

et al. 2015

IEEE Trans. on Ind. Applicat.

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. (2015). Analytical force, stiffness, and resonance frequency calculations of a magnetic vibration isolator for a micro balance. IEEE Transactions on Industry Applications, 51(1), 204-210. DOI: 10.1109/TIA.2014 General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.

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Modeling the Effects of Magnetization Variations on a Permanent Magnet Based Levitation or Vibration Isolation System

Cited by 6 publications

References 7 publications

Design of a highly reliable fan with magnetic bearings

Design of a highly reliable fan with magnetic bearings

Analytical stiffness calculations of a cone-shaped magnetic vibration isolator for a micro balance

Analytical Force, Stiffness, and Resonance Frequency Calculations of a Magnetic Vibration Isolator for a Microbalance

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