Journal
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
Volume 192, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijmecsci.2020.106133
Keywords
Lamination; Modulating pieces; Bonding stiffness; Magnetic gear; Deflection analysis
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Funding
- Department of Energy [0E-EE0006801]
- University of North Carolina Coastal Studies Institute
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This study proposes a method to accurately model the deflection of laminated structures, which can be computed in a shorter time and compared with experimental results. The method is used to assess the magnetic and mechanical advantages of different designs for the modulating pieces of a magnetic gear.
Laminated structures are commonly employed in magnetic gears based on their ability to direct magnetic flux, while inhibiting eddy currents. Unfortunately, the stiffness of the laminated structure is much lower than a solid part, which can lead to unacceptable deflections, given the large magnetic forces and small air gaps in magnetic gears. Finite element analysis of laminations to accurately predict these deflections can be computationally expensive due to the small elements needed to model the thin lamination dimensions. These analyses also have some uncertainty due to the assignment of bonding stiffness. This paper presents a means of accurately modeling the deflection of a laminated stack with reduced complexity and computational time, which is compared to experimental results. The resulting methods are then used to assess the magnetic and mechanical advantages of different designs for the modulating pieces of a magnetic gear.
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