Accession Number : ADA320751
Title : Computer Simulations of the Electrothermal Behavior of Armatures During Electromagnetic Launch. Part 3: Miscellaneous 2-D Simulation Results.
Descriptive Note : Final rept.,
Corporate Author : PRINS MAURITS LABORATORIUM TNO RIJSWIJK (NETHERLANDS)
Personal Author(s) : Schoolderman, A. J.
PDF Url : ADA320751
Report Date : NOV 1996
Pagination or Media Count : 45
Abstract : Recent results of simulations of the electromagnetic acceleration process with the 2-dimensional electrothermal finite element computer code ET-code are presented and three extensions of the code, the muzzle voltage calculation, the melt-wave model and the frictional heating model, are described. In order to obtain a uniform current distribution in the solid armature during launch, necessary for postponing the transition of the armature to a hybrid one, three possible methods were investigated, i.e. the application of a resistive layer on the rails, the use of fibre armatures with tipped fibres and the lengthening of the armature.
Descriptors : *COMPUTERIZED SIMULATION, *ARMATURES, *ELECTROMAGNETIC GUNS, NETHERLANDS, FINITE ELEMENT ANALYSIS, VOLTAGE, CURRENT DENSITY, MOLYBDENUM, COPPER, ALUMINUM, THERMAL CONDUCTIVITY, GUN LAUNCHED, GUN MUZZLES, SLIDING FRICTION, THERMOELECTRICITY.
Subject Categories : Computer Programming and Software
Electrical and Electronic Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE