DocumentCode
1461418
Title
Loss of propulsive force in railguns with laminated containment
Author
Parker, Jerald V. ; Levinson, Scott
Author_Institution
Inst. for Adv. Technol., Texas Univ., Austin, TX, USA
Volume
35
Issue
1
fYear
1999
fDate
1/1/1999 12:00:00 AM
Firstpage
442
Lastpage
446
Abstract
The effect of a close-fitting laminated containment structure on propulsive L´ is studied both experimentally and computationally. It is shown that the interaction of axial magnetic fields near the armature with the laminations transfers a fraction of the propulsive force to the containment. This reduces the propulsive L´ without causing significant reduction in the rail L´. The effect is very sensitive to the spacing between armature and containment. The loss of propulsive force may be as large as 20 to 25% for very close spacing
Keywords
force; laminations; losses; magnetic fields; propulsion; railguns; armature; axial magnetic fields interaction; laminated containment structure; propulsive force transfer; railgun propulsive force loss; Filling; Frequency; Inductance; Insulation; Lamination; Magnetic field measurement; Magnetic fields; Railguns; Rails; Steel;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.738448
Filename
738448
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