Investigating the Performance of a New Type of Preloaded Linear Stroke Length Magnetic Spring
- Portland State University, OR (United States); Portland State University
- University of Wisconsin, Madison, WI (United States)
- Portland State University, OR (United States)
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. Here, 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.
- Research Organization:
- Portland State University, OR (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Water Power Technologies Office
- Grant/Contract Number:
- EE0008631
- OSTI ID:
- 2371237
- Journal Information:
- Progress in Electromagnetics Research C, Journal Name: Progress in Electromagnetics Research C Vol. 111; ISSN 1937-8718
- Publisher:
- EMW PublishingCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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