The interaction of two narrow magnets and a moving conducting slip

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Description

Measurements were made of the forces experienced by two narrow but relatively long permanent magnets positioned above a moving, electrically conducting surface. The intent was to determine the accuracy of various means of computing these forces. It was found that the behavior at very high speeds can be approximated by using elementary methods and making the assumption that magnetic images are formed in the conductor. At lower speeds, a published formulation that uses Fourier transform techniques is quite reliable for the parameters of the experiments. A commercial computer code that uses a finite-element method of analysis is also in good ... continued below

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18 p.

Creation Information

Wang, Z.; Winkleman, S. R.; Mulcahy, T. M.; Coffey, H. T.; Rote, D. M. & Hull, J. R. July 1, 1994.

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Description

Measurements were made of the forces experienced by two narrow but relatively long permanent magnets positioned above a moving, electrically conducting surface. The intent was to determine the accuracy of various means of computing these forces. It was found that the behavior at very high speeds can be approximated by using elementary methods and making the assumption that magnetic images are formed in the conductor. At lower speeds, a published formulation that uses Fourier transform techniques is quite reliable for the parameters of the experiments. A commercial computer code that uses a finite-element method of analysis is also in good agreement The results are relevant to the design of high-speed magnetically levitated (maglev) ground transportation vehicles having multiple magnets, where the guideway consists of a continuous-sheet conductor.

Physical Description

18 p.

Notes

OSTI as DE94018575; Paper copy available at OSTI: phone, 865-576-8401, or email, reports@adonis.osti.gov

Source

  • Other Information: PBD: Jul 1994

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  • Other: DE94018575
  • Report No.: ANL/ESD/TM--70
  • Grant Number: W-31109-ENG-38
  • DOI: 10.2172/10180713 | External Link
  • Office of Scientific & Technical Information Report Number: 10180713
  • Archival Resource Key: ark:/67531/metadc1401895

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • July 1, 1994

Added to The UNT Digital Library

  • Jan. 12, 2019, 4:41 p.m.

Description Last Updated

  • March 26, 2019, 3:14 p.m.

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Wang, Z.; Winkleman, S. R.; Mulcahy, T. M.; Coffey, H. T.; Rote, D. M. & Hull, J. R. The interaction of two narrow magnets and a moving conducting slip, report, July 1, 1994; Illinois. (https://digital.library.unt.edu/ark:/67531/metadc1401895/: accessed November 13, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.