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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Author(s)
Pedram Asef and Ramon Bargallo Perpina
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DOI:10.17265/1934-8975/2016.04.007
Affiliation(s)
Department of Electrical Engineering, Polytechnic University of Catalonia-BarcelonaTech, Barcelona, CAT 08036, Spain
ABSTRACT
A 3-D modeling of FEA (finite element analysis)
design provides for high-speed synchronous with PMs (permanent magnets) applied in aerospace
application will be examined under design considerations of n = 12,000 rpm, short-duty operation, and etc. for an ARWM (aerospace retraction wheel motor). First, lumped-elements will
be fine-tuned following numerical method results is reported steady-state and
transient solutions. Besides, the equations of thermal modeling such as Re, Nu, Gr and Pr numbers in order to calculate heat-transfer
coefficient of convection on the rotor and stator surfaces in the air-gap have
calculated. This section illustrates the temperature distribution of each point
in a clear view. By CFD (fluid dynamic analysis) analysis, the fluid dynamics were modeled, pressure and velocity
streamlines of cooling-flow have analyzed. An optimization algorithm was
derived in order to have optimized number of
water-channels as well. Second, calculation of nodal and tangential
forces which deal with mechanical
stresses of the ARWM have represented. The
paper discusses an accurate magnetic-field analysis that addresses equivalent stress distribution in the magnetic
core through using the transient
FEA to estimate motor characteristics.
The whole model shear and normal
mechanical stresses and total deformation of the ARWM has been
investigated by transient FEA. The end-winding effects were included by the authors.
KEYWORDS
ARWM, high-speed PM motor, redundant winding, equivalent stress distribution, lumped-elements.
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