DocumentCode
927472
Title
Limits to the velocity of solid armatures in railguns
Author
Long, Glen C. ; Weldon, William F.
Author_Institution
Dept. of Electr. Eng., US Mil. Acad., West Point, NY, USA
Volume
25
Issue
1
fYear
1989
fDate
1/1/1989 12:00:00 AM
Firstpage
347
Lastpage
352
Abstract
Velocity limits of a solid armature in a railgun are the result of temperature and internal forces which surpass the yield strength of the material. A two-dimensional finite-element model for the magnetic and temperature fields in a railgun is presented for several rail and armatures designs. Copper rails and a molybdenum armature are identified as candidates for future solid armature testing. All simulations are performed for a 1/2-inch-square-bore railgun
Keywords
electromagnetic launchers; finite element analysis; Cu; electromagnetic launchers; finite-element model; internal forces; magnetic; railguns; solid armatures; temperature; velocity; Conducting materials; Contacts; Current density; Friction; Heating; Magnetic materials; Railguns; Rails; Solids; Temperature;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.22562
Filename
22562
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