Title :
Structure Design of an "Open-Bore" Electromagnetic Launcher
Author :
Nie, Jianxin ; Jiao, Qingjie ; Qin, Jianfeng ; Li, Jun ; Han, Jingjing
Author_Institution :
State Key Lab. of Explosion Sci. & Technol., Beijing Inst. of Technol., Beijing
Abstract :
An "open-bore" railgun, a small bore of 14 mm with vented top and bottom, was designed especially for the Beijing Institute of Technology Armature Tester (BITAT) Electromagnetic Launcher (EML) Program. This novel design may be a possible solution to avoiding forming "secondary arc", and will be mainly employed as a plasma armature tester in the near future. In this paper, a series of numerical simulations on the structural strength and deformation of our railgun are investigated by using the finite element method. A simple plate-mechanics model is also proposed to evaluate the maximum permissible EM force on the insulated support plates. Finally, the optimum design of our railgun is suggested based on the results of the numerical simulations.
Keywords :
deformation; finite element analysis; mechanical strength; railguns; Beijing Institute of Technology Armature Tester; Electromagnetic Launcher Program; finite element method; maximum permissible EM force; open-bore electromagnetic launcher; open-bore railgun; plasma armature tester; simple plate-mechanics model; size 14 mm; structure design; Boring; Electromagnetic launching; Insulation; Numerical simulation; Plasma materials processing; Plasma simulation; Power supplies; Railguns; Rails; Testing;
Conference_Titel :
Electromagnetic Launch Technology, 2008 14th Symposium on
Conference_Location :
Victoria, BC
Print_ISBN :
978-1-4244-1832-9
Electronic_ISBN :
978-1-4244-1833-6
DOI :
10.1109/ELT.2008.79
