Title :
Design and testing of a 15-stage synchronous induction coilgun
Author :
Zhang, Tao ; Guo, Wei ; Zhang, Honghai ; Cao, Bin ; Huang, Kai ; Ren, Ren
Author_Institution :
State Key Lab. of Adv. Electromagn. Eng. & Technol., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
An improved large-caliber synchronous induction coilgun was tested to demonstrate the launch of 120-mm projectiles. This induction coilgun is made of 15 identical coils. The coils are stacked end-to-end forming a barrel, and each coil is energized by the same pulsed power topology in sequence to generate a magnetic force to accelerate the projectile. Tracking of the projectile location during launching provided precise feedback to control. A computer simulation based on the viewpoint of FEA software is developed to predict the performance of the launcher system. 5-kilogram copper projectiles were accelerated from rest to 220 m/s through the 2.5-m launcher assembly with a projectile kinetic energy to capacitor stored energy efficiency of 14.5%. The 15-stage induction coilgun provides a significant improvement in the armature capture effect, system efficient and coil structure. Further experiments studies are being continued.
Keywords :
electromagnetic launchers; finite element analysis; pulsed power technology; testing; FEA software; armature capture effect; capacitor stored energy efficiency; coil structure; computer simulation; copper projectiles; efficiency 14.5 percent; large-caliber synchronous induction coilgun; launcher assembly; launcher system; projectile kinetic energy; projectile location tracking; pulsed power topology; size 2.5 m; synchronous induction coilgun testing; velocity 220 m/s; Acceleration; Coilguns; Coils; Energy storage; Power supplies; Projectiles; Simulation;
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.2012.6325046