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

Article Preview

Abstract:

When designing a magnetic levitation system it is assumed that the magnets are ideally magnetized. In practice, however, this is not the case and deviations occur in the magnetization. In this paper two types of deviations are considered, namely a constant angular deviation and the magnetization error. Calculations show that a constant error has larger impact on the performance of a gravity compensator than the magnetization error.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

366-372

Citation:

Online since:

September 2013

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2013 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] A. Peijnenburg, J. Vermeulen, and J. van Eijk, Magnetic levitation systems compared to conventional bearing systems, Microelectronic Engineering, vol. 83, no. 49, p.1372 – 1375, (2006).

DOI: 10.1016/j.mee.2006.01.248

Google Scholar

[2] S. Earnshaw, On the Nature of the Molecular Forces which Regulate the Constitution of the Luminuferous Ether, Phil. Soc., Camb. Transactions on, vol. VII, no. 1, p.97 – 112, 1839.

Google Scholar

[3] J. L. G. Janssen, J. J. H. Paulides, and E. A. Lomonova, Analytical Force and Stiffness Calculations for Magnetic Bearings and Vibration Isolation, in Proceedings International Symposium on Electromagnetic Fields, ISEF 2009, Sept. (2009).

Google Scholar

[4] G. Akoun and J. -P. Yonnet, 3D analytical Calculation of the Forces Exerted Between Two Cuboidal Magnets, Magnetics, IEEE Transactions on, vol. 20, no. 5, p.1962 – 1964, Sept. (1984).

DOI: 10.1109/tmag.1984.1063554

Google Scholar

[5] H. Allag and J. -P. Yonnet, 3-D Analytical Calculation of the Torque and Force Exerted Between Two Cuboidal Magnets, Magnetics, IEEE Transactions on, vol. 45, no. 10, p.3969–3972, Oct. (2009).

DOI: 10.1109/tmag.2009.2025047

Google Scholar

[6] M. Weickhmann, Nd-Fe-B Magnets, Properties and Applications, Vacuumschmelze GmbH&Co, Tech. Rep., (2009).

Google Scholar

[7] Paulides, J.J.H., Lomonova, E., Vandenput, A.J.A. and Zaaijer, S.H. Sinusoidal behavior of a dipole magnetization for position sensing applications,. IEEE Transactions on Magnetics, 42(10), 3294-3296, (2006).

DOI: 10.1109/tmag.2006.879764

Google Scholar

[8] H. Allag, J. -P. Yonnet, M. E. H. Latreche, and H. Bouchekara, Coulombian Model for 3D Analytical Calculation of the Torque Exerted on Cuboidal Permanent Magnets with Arbitrarly Oriented Polarizations, in LDIA 2011 (8th International Conference on Linear Drives for Industry Applications), Jul. (2011).

DOI: 10.1109/electromotion.2009.5259084

Google Scholar

[9] J. Janssen, B. Gysen, J. Paulides, and E. Lomonova, Advanced Electromagnetic Modeling applied to Anti-Vibration Systems for High Precision and Automotive Applications, International Compumag Society Newsletter, vol. 1, no. 19, p.3–16, January (2012).

Google Scholar