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Title: Interaction magnetic field formulation of permanent magnets based on Baker's rotational magnetic propulsion device
Authors: Rishmany, Jihad 
Sabiini, Guitta
Affiliations: Department of Mechanical Engineering 
Keywords: Charge model method
Discretisation technique
Interaction magnetic force
Magnetisation charges
Permanent magnet
Issue Date: 2019
Part of: International journal of electric and hybrid vehicles
Volume: 11
Issue: 2
Start page: 152
End page: 169
This paper presents a semi-analytical approach for calculating the magnetic interaction field between two permanent magnets based on Baker's rotational magnetic propulsion device. A theoretical formulation of the configuration is derived and solved numerically in order to obtain the interaction magnetic field between cuboidal permanent magnets based on the charge model method. A simple case is considered where the magnets are made of the same material and magnetised uniformly along their axes of symmetry. Numerical solution of the analytical system of equations permits proposing a configuration for a permanent magnet motor having the proper combination of materials, geometry and magnetic concentration. This configuration is capable of ensuring three aspects: a self-starting nature, continuity of the magnetic field, and overcoming of the lock-point. Finally, part of the permanent magnet motor is constructed and tested. Experimental results are in accordance with numerical results confirming the self-starting nature and overcoming of the lock-point.
Type: Journal Article
Appears in Collections:Department of Mechanical Engineering

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