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Anodized aluminium foil winding axial flux machine for direct-drive robotic applications

Jordi Van Damme (UGent) , Hendrik Vansompel (UGent) and Guillaume Crevecoeur (UGent)
(2023) IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS. 70(10). p.10409-10419
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Abstract
There is a need for higher specific torque electric actuators in novel direct-drive robotic applications. Since the specific torque is inherently limited by material properties, designers have to look at novel materials to push the specific torque limit further. In this article, anodised aluminium foil is considered as an alternative to enamelled copper wire in a yokeless and segmented armature axial flux machine. This machine topology has a high specific torque and is particularly suited for an anodised aluminium foil winding. The DC resistance, thermal properties and eventually the specific torque of a prototype test case machine are compared for both winding materials. A 3D thermal finite element model is used to analyse the influence of the thermal interface between winding body and housing, and the influence of the cooling performance on the specific torque. To conclude, anodised aluminium foil winding offers a higher specific torque in direct-drive yokeless and segmented armature axial flux actuators where the winding body thermal resistance is dominant in the thermal path from heat source to heat sink. It is experimentally shown that for the prototype machine, the torque per kg active stator mass increases 13% through the use of anodised aluminium foil.
Keywords
Electrical and Electronic Engineering, Control and Systems Engineering, thermal conductivity, robotics, axial flux, an-odization, aluminum oxide (Al2O3), Aluminum

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MLA
Van Damme, Jordi, et al. “Anodized Aluminium Foil Winding Axial Flux Machine for Direct-Drive Robotic Applications.” IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, vol. 70, no. 10, 2023, pp. 10409–19, doi:10.1109/tie.2022.3220894.
APA
Van Damme, J., Vansompel, H., & Crevecoeur, G. (2023). Anodized aluminium foil winding axial flux machine for direct-drive robotic applications. IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 70(10), 10409–10419. https://doi.org/10.1109/tie.2022.3220894
Chicago author-date
Van Damme, Jordi, Hendrik Vansompel, and Guillaume Crevecoeur. 2023. “Anodized Aluminium Foil Winding Axial Flux Machine for Direct-Drive Robotic Applications.” IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 70 (10): 10409–19. https://doi.org/10.1109/tie.2022.3220894.
Chicago author-date (all authors)
Van Damme, Jordi, Hendrik Vansompel, and Guillaume Crevecoeur. 2023. “Anodized Aluminium Foil Winding Axial Flux Machine for Direct-Drive Robotic Applications.” IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 70 (10): 10409–10419. doi:10.1109/tie.2022.3220894.
Vancouver
1.
Van Damme J, Vansompel H, Crevecoeur G. Anodized aluminium foil winding axial flux machine for direct-drive robotic applications. IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS. 2023;70(10):10409–19.
IEEE
[1]
J. Van Damme, H. Vansompel, and G. Crevecoeur, “Anodized aluminium foil winding axial flux machine for direct-drive robotic applications,” IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, vol. 70, no. 10, pp. 10409–10419, 2023.
@article{01GK6YTQK1TT73AAWNMZA6GEMX,
  abstract     = {{There is a need for higher specific torque electric actuators in novel direct-drive robotic applications. Since the specific torque is inherently limited by material properties, designers have to look at novel materials to push the specific torque limit further. In this article, anodised aluminium foil is considered as an alternative to enamelled copper wire in a yokeless and segmented armature axial flux machine. This machine topology has a high specific torque and is particularly suited for an anodised aluminium foil winding. The DC resistance, thermal properties and eventually the specific torque of a prototype test case machine are compared for both winding materials. A 3D thermal finite element model is used to analyse the influence of the thermal interface between winding body and housing, and the influence of the cooling performance on the specific torque. To conclude, anodised aluminium foil winding offers a higher specific torque in direct-drive yokeless and segmented armature axial flux actuators where the winding body thermal resistance is dominant in the thermal path from heat source to heat sink. It is experimentally shown that for the prototype machine, the torque per kg active stator mass increases 13% through the use of anodised aluminium foil.}},
  author       = {{Van Damme, Jordi and Vansompel, Hendrik and Crevecoeur, Guillaume}},
  issn         = {{0278-0046}},
  journal      = {{IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS}},
  keywords     = {{Electrical and Electronic Engineering,Control and Systems Engineering,thermal conductivity,robotics,axial flux,an-odization,aluminum oxide (Al2O3),Aluminum}},
  language     = {{eng}},
  number       = {{10}},
  pages        = {{10409--10419}},
  title        = {{Anodized aluminium foil winding axial flux machine for direct-drive robotic applications}},
  url          = {{http://doi.org/10.1109/tie.2022.3220894}},
  volume       = {{70}},
  year         = {{2023}},
}
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