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http://dx.doi.org/10.5762/KAIS.2014.15.6.3455

Design and Experiment of Coil gun to Apply Electomagnetic Launcher System  

Lee, Su Jeong (Division of Mechanical Engineering, Yeungnam University)
Kim, Jin Ho (Division of Mechanical Engineering, Yeungnam University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.15, no.6, 2014 , pp. 3455-3459 More about this Journal
Abstract
This paper reports the design and experiments for a high drive force of projectile in a coil gun system. Currently, the coil gun has been studied to apply an electromagnetic launcher. A coil gun launches a projectile by the attractive magnetic force of the electromagnetic coil. The drive force of projectile is proportional to the magnetic force generated by the electromagnetic coil. The current affects the life of the coil and the current limit exists. Therefore, the coil gun design, which does not exceed the current limit and the magnetic forces are at the maximum, is required. For this purpose, this study calculated the magnetic flux density and forces of the coil gun system and determined the current limit of the coil using the Onderdonk's equation. Based on the design result, a prototype was manufactured and an experiment was conducted to measure the muzzle velocity of the projectile. The fired projectile was analyzed using a CCD camera, and the muzzle velocity was 21m/s. In addition, a comparison of the experimental value and analysis value using commercial electromagnetic analysis software MAXWELL revealed an error of approximately 9.5%.
Keywords
Coil gun; Electromagnetic Launcher; Magnetic force; Muzzle velocity; Solenoid design;
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  • Reference
1 Giancarlo Becherini, "Gyroscopic Stabilization of Launch Package in Induction Type Coil gun", IEEE Transactions on Magnetics, Vol.37, No.1, pp. 116-122 (2001) DOI: http://dx.doi.org/10.1109/20.911803   DOI   ScienceOn
2 H. D. Fair, "Advances in Electromagnetic Launch Science and Technology and Its Applications", IEEE Transactions on Magnetics, Vol.45, No.1, pp. 225-230 (2009) DOI: http://dx.doi.org/10.1109/TMAG.2008.2008612   DOI   ScienceOn
3 De-man Wang, Qun She, Yin-ming Zhu, Jian-jun Chen, "The Magnetic Levitation of the Projectile in Coil guns", IEEE Transactions on Magnetics, Vol.33, No.1, pp. 195-200 (1997) DOI: http://dx.doi.org/10.1109/20.559945   DOI   ScienceOn
4 Giancarlo Becherini and Bernardo Tellini, "Helicoidal Electromagnetic Field for Coilgun Armature Stabilization", IEEE Transactions on Magnetics, Vol.39, No.1, pp. 108-111 (2003) DOI: http://dx.doi.org/10.1109/TMAG.2002.805878   DOI   ScienceOn
5 Lizhong Xu and Yanbo Geng, "Forces of rails for electromagnetic railguns", Applied Mathematical Modeling, Vol. 36, pp.1465-1476 (2012) DOI: http://dx.doi.org/10.1016/j.apm.2011.09.036   DOI   ScienceOn
6 Eric Dennison, "On-Axis Field of a Finite, Straight, Thin Shell Solenoid", Magnet Formulas web site, 2005, "http://www.netdenizen.com/emagnet/index.htm"
7 Jae Man Han, Sung Joong Joo, Ji Ung Jo, Man Sung Lee, Dong Suk Park, Je Uk Park, Jong Hyuk Byun, Dong Sok Kim and Gwan Soo Park,, "Research of the driving characteristic in the electromagnetic launcher by switching circuit", 2006 KIEE EMECS Conference, pp. 595-596, Pusan National University, Korea (2006)   과학기술학회마을
8 Sung Joong Joo, Jae Man Han, Ji Ung Jo, Man Sung Lee, Dong Suk Park, Je Uk Park, Jong Hyuk Byun, Dong Sok Kim and Gwan Soo Park, "Development of the small electro -magnetic launcher using solenoid coil", 2006 KIEE EMECS Conference, pp. 402-404, Pusan National University, Korea (2006)