Title

Investigating the Performance of a New Type of Preloaded Linear Stroke Length Magnetic Spring

Published In

Progress In Electromagnetics Research C

Document Type

Citation

Publication Date

3-2021

Abstract

This paper presents the analytic analysis, and proof-of-principle prototyping of a new type of magnetic spring with preload and a linear stroke length. An analytic based magnetic charge modeling approach is utilized to investigate the magnetic spring's energy density, stiffness characteristics and linearity. It is shown that whilst the proposed magnetic spring has a lower mass and energy density than a mechanical spring, the magnetic spring offers several unique characteristics, such as contact-free operation, inherent preload as well as over-force failure protection. In addition, the operating principle of the presented magnetic spring can be extended to realize both positive and negative variable stiffness adjustment characteristics.

Rights

Copyright © 2021 The Electromagnetics Academy

DOI

10.2528/PIERC21011507

Persistent Identifier

https://pdxscholar.library.pdx.edu/ece_fac/652/

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