Accession Number : ADA339083
Title : A Preliminary Study of Wear in the Solid-Armature Railgun
Corporate Author : TEXAS UNIV AT AUSTIN INST FOR ADVANCED TECHNOLOGY
Personal Author(s) : Powell, J. ; Zielinski, A.
PDF Url : ADA339083
Report Date : DEC 1997
Pagination or Media Count : 51
Abstract : A model previously developed to investigate current and heat transport in solid-armature railguns is extended. The 2-dimensional model involves the numerical solution of coupled Maxwell and heat-transport equations in both the armature and rails of the railgun. The principal extensions include the development of a general transformation which maps an armature of fairly arbitrary shape into a rectangular computational region, and the inclusion of melting within the appropriate governing equations. Two specific applications of the theory are then discussed: analysis of an armature under experimental study at the Army Research Laboratory and preliminary calculations concerning the entrainment of armature material on the surfaces of the rails.
Descriptors : *ELECTROMAGNETIC GUNS, *WEAR, HEAT TRANSFER, ARMATURES, RAILS, THERMAL ANALYSIS, MELTING, CURRENTS.
Subject Categories : Properties of Metals and Alloys
Electricity and Magnetism
Distribution Statement : APPROVED FOR PUBLIC RELEASE