Investigation of Current-Force Relationship in an Electromagnetic Launcher

Year 2019, Volume: 15 Issue: 1, 21 - 27, 09.08.2019

Adem Dalcalı , Onursal Çetin , Feyzullah Temurtaş

Abstract

In electromagnetic launchers, the projectile location information is required. Particularly in sequential winding systems, 

position information is provided by using additional devices for de-energizing a winding and energizing the next winding.

In alternating current powered launcher systems, projectile position can be estimated from current changes without the need for an additional device. 

In this study, the design of coil and projectile suitable for use in electromagnetic launcher systems has been realized with the help of computer aided design programs. 

The projectile position is defined as variable and the change of force and winding current on the projectile is determined by finite element method. 

The relationship between the current difference and the force is determined according to the position.

Keywords

Electromagnetic launcher, position detection, finite element method

Project Number

BAP-18-MF-1003-003

References

• [1] Chandan, K.S., Rao, P. M., “A Mathematical Formulation of Inductance for Multipole Field Electromagnetic Launcher”, International Journal of Pure and Applied Mathematics, 118(24), 1-13, 2018.
• [2] Sarı, V., “Elektromanyetik Fırlatıcıların Farklı Manyetik Özellikteki Çekirdeklerle Performans Analizi”, Doktora Tezi, Erciyes Üniversitesi, Kayseri, 2015.
• [3] Fair, H. D., “Electromagnetic Launch Science and Technology in the United States Enters A New Era”, IEEE Transactions on Magnetics, 41(1), 158-164, 2005.
• [4] W. Luo, Y. Wang, Z. Gui, Z. Yan, and W. Chen, “Connection pattern research and experimental realization of single stage multipole field electromagnetic launcher”, IEEE Transactions on Plasma Science, 41(11), 3173–3179, 2013.
• [5] Engel, T. G., Nunnally, W. C., Neri, J. M., “High-efficiency, medium-caliber helical coil electromagnetic launcher”, IEEE Transactions on Magnetics, 41(11), 4299–4303, 2005.
• [6] Yuan, W., Yan, P., Sun, Y., Li, M., Liu, C., Li, J., Gui, Y., He, J., “Design and testing of a two-turn electromagnetic launcher”, IEEE Transactions on Plasma Science, 39(1), 198–202, 2011.
• [7] Skurdal, B. D., Gaigler, R. D., “Multi-mission electromagnetic launcher”, IEEE Transactions on Magnetics, 45(1), 458–461, 2009.
• [8] Crawford, M., Subramanian, R., Watt, T., Surls, D., Motes, D., Mallick, J., Barnette, D., Satapathy, S., Campos, J., “The design and testing of a large-caliber railgun”, 14th Symposium on Electromagnetic Launch Technology, Canada, 2008.
• [9] He, Y., Song, S., Guan, Y., Cheng, C., Dai, W., Qui, X., Li, Y., “An investigation into muzzle velocity repeatability of a railgun”, IEEE Transactions on Plasma Science, 43(5), 1647–1651, 2015.
• [10] Zhang, J., Gu, G., Xiang, Y., Zhao, X., Liu, X., “Research on a big multiturn rail electromagnetic launching system”, IEEE Transactions on Magnetics, 43(5), 2054–2058, 2007.
• [11] Dong, E., Cao, R., “The Inner Surface Profile Measurement Apparatus for an Electromagnetic Rail-Gun Launcher”, IEEE Sensors Journal, 18(10), 4269-4274, 2018.
• [12] Çoşkun, İ., Kalender, O., Ege, Y., “İndüksiyon Bobin Silahı İçin Uygun Stator Bobini Geometrisinin Araştırılması”, BAÜ Fen Bil. Enst. Dergisi, 8(2), 40-48, 2006.
• [13] Le, D. V., Go, B. S., Song, M. G., Park, M., Yu, I. K., “Design of an Electromagnetic Induction Coilgun Using the Taguchi Method”, IEEE Transactions on Plasma Science, 46(10), 3612- 3618, 2018.
• [14] Yang, D., Liu, Z., Shu, T., Yang, L., Ouyang, J., Zhi, S., “Transient simulation of helicalcoil electromagnetic launchers”, The international journal for computation and mathematics in electrical and electronic engineering, 37(1), 280-292, 2018.
• [15] Dalcalı, A., Akbaba, M., “Comparison of 2D and 3D magnetic field analysis of single-phase shaded pole induction motors,” Engineering Science and Technology, an International Journal, 19, 1–7, 2016.
• [16] Akbaba, M., Fakhro, S. Q., "Field Distribution and Iron Loss Computation in Reluctance Augmented Shaded-Pole Motors Using Finite Element Method", IEEE Transactions on Energy Conversion, 7(2), 302–307, 1992.
• [17] Akbaba, M., Fakhro, S. Q., "An Improved Computational Technique of the Inductance Parameters of the Reluctance Augmented Shaded-pole Motors Using Finite Element Method", IEEE Transactions on Energy Conversi