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Purpose
The purpose of this paper is to describe the optimization process of a homopolar machine. The work has been focused on a reduction of axial forces acting on the rotor.
Design/methodology/approach
A novel machine design has been proposed and a detailed FEM analysis has been performed.
Findings
The source of the axial force in the homopolar machine has been indicated and a new method of axial force reduction has been presented.
Originality/value
A detailed comparison shows that the applied changes lead to a significant axial force reduction and allow the usage of cheaper and less prone to axial forces bearings.
© Emerald Group Publishing Limited
2012
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