Dynamic analysis of radial force density in brushless DC motor using 3-D equivalent magnetic circuit network method

Journal Article · Tue Sep 01 04:00:00 EDT 1998 · IEEE Transactions on Magnetics

OSTI ID:665287

Hur, J; Chun, Y D; Lee, J; Hyun, D S ^[1]

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1. Hanyang Univ., Seoul (Korea, Republic of). Dept. of Electrical Engineering

The distribution of radial force density in brushless permanent magnet DC motor is not uniform in axial direction. The analysis of radial force density has to consider the 3-D shape of teeth and overhand, because the radial force density causes vibration and acts on the surface of teeth inconstantly. For the analysis, a new 3-D equivalent magnetic circuit network method is used to account the rotor movement without remesh. The radial force density is calculated and analyzed by Maxwell stress tensor and discrete Fourier transform (DFT) respectively. The results of 3-D equivalent magnetic circuit method have been compared with the results of 3-D FEM.

• OSTI ID: 665287
• Report Number(s): CONF-971159--
• Journal Information: IEEE Transactions on Magnetics, Journal Name: IEEE Transactions on Magnetics Journal Issue: 5Pt1 Vol. 34; ISSN IEMGAQ; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
COMPARATIVE EVALUATIONS
DC SYSTEMS
ELECTRIC MOTORS
EQUIVALENT CIRCUITS
FOURIER ANALYSIS
MAGNETIC CIRCUITS
MECHANICAL VIBRATIONS
PERFORMANCE
THREE-DIMENSIONAL CALCULATIONS