Title :
EM gun bore life experiments at the Naval Research Laboratory
Author :
Meger, R.A. ; Cairns, R. ; Douglass, S. ; Huhman, B. ; Neri, J. ; Jones, H. ; Cooper, K. ; Feng, J. ; Brintlinger, T. ; Sprague, J. ; Michopoulos, J. ; Young, M. ; DeGiorgi, V. ; Leung, A. ; Baucom, J. ; Wimmer, S.
Author_Institution :
Plasma Phys. Div., Naval Res. Lab., Washington, DC, USA
Abstract :
The Naval Research Laboratory (NRL) performs basic and applied research on high power railguns as part of the US Navy EM Launcher program. The understanding of damage mechanisms as a function of armature and barrel materials, launch parameters, and bore geometry is of primary interest to the development of a viable high power railgun. Research is performed on a 6-m, 1.5 MJ railgun located at NRL. Barrel studies utilize in situ diagnostics coupled with detailed ex situ analysis of rail materials to provide clues to the conditions present during launch. Results are compared with coupled 3-D electromagnetic and mechanical Finite Element Analysis (FEA) models of railgun operation. Results of several experiments on rail wear will be discussed.
Keywords :
electromagnetic launchers; finite element analysis; naval engineering; rails; wear; EM gun bore life experiments; FEA models; NRL; Naval Research Laboratory; US Navy EM Launcher program; armature; barrel materials; bore geometry; coupled 3D electromagnetic models; high power railguns; launch parameters; mechanical finite element analysis; rail materials; rail wear; Aluminum; Armature; Fasteners; Railguns; Rails; Steel; Surface treatment;
Conference_Titel :
Electromagnetic Launch Technology (EML), 2012 16th International Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-0306-4
DOI :
10.1109/EML.2012.6325173
