NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Eddy Current Influences on the Dynamic Behaviour of Magnetic Suspension SystemsThis report will summarize some results from a multi-year research effort at NASA Langley Research Center aimed at the development of an improved capability for practical modelling of eddy current effects in magnetic suspension systems. Particular attention is paid to large-gap systems, although generic results applicable to both large-gap and small-gap systems are presented. It is shown that eddy currents can significantly affect the dynamic behavior of magnetic suspension systems, but that these effects can be amenable to modelling and measurement. Theoretical frameworks are presented, together with comparisons of computed and experimental data particularly related to the Large Angle Magnetic Suspension Test Fixture at NASA Langley Research Center, and the Annular Suspension and Pointing System at Old Dominion University. In both cases, practical computations are capable of providing reasonable estimates of important performance-related parameters. The most difficult case is seen to be that of eddy currents in highly permeable material, due to the low skin depths. Problems associated with specification of material properties and areas for future research are discussed.
Document ID
19980203620
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Britcher, Colin P.
(Old Dominion Univ. Norfolk, VA United States)
Bloodgood, Dale V.
(Old Dominion Univ. Norfolk, VA United States)
Date Acquired
August 18, 2013
Publication Date
May 1, 1998
Publication Information
Publication: Fourth International Symposium on Magnetic Suspension Technology
Subject Category
Electronics And Electrical Engineering
Funding Number(s)
CONTRACT_GRANT: NAG1-1056
CONTRACT_GRANT: NCC1-248
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Document Inquiry

Available Downloads

There are no available downloads for this record.
No Preview Available