Study of diamagnetically stabilized non-vertical levitation using the magnetic charge equivalence

Article type: Research Article

Authors: Nemoianu, Iosif Vasile^{a; *} | Küstler, Gerald^b | Cazacu, Emil^a

Affiliations: [a] University "Politehnica" of Bucharest, Romania | [b] Peter-Roseggerstr. 3, Gaggenau, Germany

Correspondence: [*] Corresponding author: Iosif Vasile Nemoianu, University "Politehnica" of Bucharest, Department of Electrical Engineering, 313 Splaiul Independentei, 060042 Bucharest, Romania. Tel./Fax: +40 21 402 91 44; E-mail: [email protected]

Abstract: The present paper proposes an analytical magnetic charges equivalence procedure for computing the magnetic field created by the lifting magnets in a non-vertical levitation structure. The proposed method avoids the repetitive solving of the problem needed by any numerical analyse package in order to reach the balance of forces at the equilibrium point. Demagnetization in open-loop of the used NdFeB magnets is taken into account by determining their operating point on the BH-curve. The equilibrium point location is calculated and its stability is checked through the stability discriminants. Several horizontal and an inclined structures are computed and the results are compared with the ones obtained with the professional field computation package RADIA. Finally, the calculation results are validated in comparison with experimental results.

Keywords: Diamagnetic levitation, non-vertical configuration, magnetic charges

DOI: 10.3233/JAE-2012-1412

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 38, no. 2-3, pp. 101-115, 2012