Author(s)

Majid Pakdel

Isfahan University of Technology, Isfahan, Iran.

As permanent magnet motors and generators produce torque, vibration occurs through the small air gap due to the alternating magnetic forces created by the rotating permanent magnets and the current switching of the coils. The magnetic force can be calculated from the flux density by finite element methods and the Maxwell stress tensor in cy-lindrical coordinates. In this paper the magnetic flux density, the magnetic force and the torque of a real three dimen-sional brushless DC motor are simulated using Maxwell 3 D V 11.1.

Brushless DC Motor, Finite Element Analysis, Maxwell 3 D V 11.1

M. Pakdel, "Analysis of the Magnetic Flux Density, the Magnetic Force and the Torque in a 3D Brushless DC Motor," Journal of Electromagnetic Analysis and Applications, Vol. 1 No. 1, 2009, pp. 1-5. doi: 10.4236/jemaa.2009.11001.