Published In
2024 IEEE Energy Conversion Congress and Exposition (ECCE)
Document Type
Pre-Print
Publication Date
2024
Subjects
Magnets -- constant force mechanism
Abstract
A new type of constant force magnet mechanism is presented that relies on the interaction of magnets alone to create a constant force over a prescribed stroke length. It is demonstrated that by using a transverse field path a very uniform radial field along the travel length is created. This can then be used to create a constant force over a long stroke length. The constat force value is shown to be adjustable through the rotation of the stator relative to the translator. The operating principle of the presented transverse-flux constant force mechanism is validated by using 3-D finite element analysis. An experimental prototype is also presented that is being used to demonstrate and validate the working principle. The proof-of principle prototype is calculated to create a 1371 N peak constant force over a 32 mm stroke length. The energy density and peak airgap shear stress of the design are calculated to be 7.3 J/kg and 93 kN/m2 respectively.
Rights
© Copyright the author(s) 2025
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DOI
10.1109/ECCE55643.2024.10860757
Publisher
IEEE
Citation Details
Sivka, G., Dechant, B., Bruce, C., & Bird, J. Z. (2024). A Transverse-Flux Constant Force Mechanism. 2024 IEEE Energy Conversion Congress and Exposition (ECCE), 5098–5102. https://doi.org/10.1109/ecce55643.2024.10860757
Description
This is the author’s version of a work that was accepted for publication. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published as: A Transverse-Flux Constant Force Mechanism. In 2024 IEEE Energy Conversion Congress and Exposition (ECCE) (pp. 5098-5102). IEEE.