Magnetic Spring and Experimental Research on its Stiffness Properties

Xiao Mei Xu; Cai Min Zeng

doi:10.4028/www.scientific.net/AMR.706-708.1418

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 706-708Magnetic Spring and Experimental Research on its...

Magnetic Spring and Experimental Research on its Stiffness Properties

Abstract:

Structure of one hybrid mono-directional magnetic spring was presented. Based on the experiment rig of magnetic spring the stiffness properties and its influencing factors were experimentally studied and analyzed. Research results show that the stiffness of the hybrid magnetic spring composed of the electromagnet and the permanent magnets is adjustable and controllable. As a whole the axial magnetic force of the magnetic spring increases non-linearly with the air gap between magnets decreasing, but within small air gap when there is considerable difference in magnetic flux density between the two magnets the axial magnetic force will decrease with the air gap decreasing, namely the magnetic spring behaves negative stiffness characteristics. The axial magnetic force is decided by the magnet with less magnetic field energy. And the adjusting range of axial magnetic force depends on the two magnets dimensions, their surface magnetic flux density and the magnetic saturation degree of the electromagnet. Furthermore, under same air gap the axial magnetic force of the magnetic spring increases linearly with the excitation coil voltage increasing.

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Periodical:

Advanced Materials Research (Volumes 706-708)

Pages:

1418-1422

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.706-708.1418

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Online since:

June 2013

Authors:

Xiao Mei Xu, Cai Min Zeng

Keywords:

Experimental Research, Magnetic Spring, Non-Linear Stiffness, Stiffness Properties

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References

[1] W. Robertson, B. Cazzolato, A. Zander, A multipole array magnetic spring, IEEE Trans. Magn. 41 (2005) 3826-3828.

DOI: 10.1109/tmag.2005.854981

Google Scholar

[2] A.V. Filatov, E.H. Maslen, Passive magnetic bearing for flywheel energy storage systems, IEEE Trans. Magn. 37 (2001) 3913-3924.

DOI: 10.1109/20.966127

Google Scholar

[3] J.P. Yonnet, Passive magnetic bearing with permanent magnets, IEEE Trans.Magn. 14 (5) (1978) 803-805.

DOI: 10.1109/tmag.1978.1060019

Google Scholar

[4] J.P. Yonnet, Passive magnet bearings and couplings, IEEE Trans. Magn. 17 (1981) 1169-1173.

DOI: 10.1109/tmag.1981.1061166

Google Scholar

[5] K.B. Choi Y.G. Cho, T.Shinshi, A. Shimokohbe, Stabilization of one degree of freedom control type levitation table with permanent magnet repulsive forces, Mechatronics. 13 (2003) 587-603.

DOI: 10.1016/s0957-4158(02)00032-6

Google Scholar

[6] Yucai Gong, Investigation on characteristics of rare-earth magnetic spring, Journal of Nanjing University of Aeronautics and Astronautics. 27 (1995) 376-381.

Google Scholar