Abstract：Performance analysis of inductive coil gun is very important for its experimental research and electromagnetic optimization design. Circuit simulation is carried out based on current filament model (CFM), and the governing equations of CFM may be boiled down to initial value problem of non-linear variable coefficient ordinary differential equations, which can be solved by numerical method and is easy to program. From circuit simulation, the dependence of system performance on variable parameters can be found. Field model is built based on composite grid method (CGM); CGM uses two sets of mutual independent grids to discrete solution regions; it overcomes the trouble of remeshing in normal finite element method (FEM), which is built based on one set of grid. In this paper performance analysis of three stages coaxial inductive coil gun is carried out based on field coupling circuit method. Three dimensional moving conductor eddy current (MCEC) simulation of coil gun is realized, and field variables distribution in the launching process is obtained. By comparing the results of circuit model and field model the validity of the two models are proved.
刘守豹, 阮江军, 杜志叶, 黄道春. 感应线圈炮性能的场路结合分析[J]. 电工技术学报, 2010, 25(12): 1-7.
Liu Shoubao, Ruan Jiangjun, Du Zhiye, Huang Daochun. Analysis of Inductive Coil Gun Performance Based on Field Coupling Circuit Method. Transactions of China Electrotechnical Society, 2010, 25(12): 1-7.
[1] Haghmaram R, Shoulaie A. Literature review of theory and technology of air-core tubular linear induction motors [electromagnetic launcher applications][C]. 39th International Universities Power Engineering Conference, 2004: 517- 522. [2] 赵科义, 李治源, 程树康, 等. 同步感应线圈炮内磁场及涡流场的有限元分析[J]. 高电压技术, 2008, 34(3): 492-495. [3] Aubuchon M S, Lockner T R, Turman B N, et al. Results from sandia national laboratories/lockheed martin electromagnetic missile launcher (EMML)[C]. IEEE Pulsed Power Conference, 2005: 75-78. [4] Aubuchon M S, Lockner T R, Kaye R J, et al. Study of coilgun performance and comments on armatures[C]. Power Modulator Symposium, 2004 and 2004 High-Voltage Workshop, Conference Record of the Twenty-Sixth International, 2004: 141-144. [5] Yamazaki K, Watari S, Egawa A. Adaptive finite element meshing for eddy current analysis of moving conductor[J]. IEEE Transactions on Magnetics, 2004, 40(2): 993-996. [6] De Gersem, Weiland T. A computationally efficient air-gap element for 2-D FE machine models[J]. IEEE Transactions on Magnetics, 2005, 41(5): 1844-1847. [7] Bird J, Lipo T A. A 3-D magnetic charge finite- element model of an electrodynamic wheel[J]. IEEE Transactions on Magnetics, 2008, 44(2): 253-265. [8] Rapetti F, Maday Y, Bouillault F, et al. Eddy-current calculations in three-dimensional moving structures[J]. IEEE Transactions on Magnetics, 2002, 38(2): 613-616. [9] 刘瑞芳, 严登俊, 胡敏强. 永磁无刷直流电动机场路耦合运动时步有限元分析[J]. 中国电机工程学报, 2007, 27(12): 59-64. [10] 梁振光, 唐任远. 大型变压器三维瞬态涡流场场路耦合模型[J]. 电工技术学报, 2003, 18(5): 17-22. [11] 梁振光, 唐任远. 采用场路耦合的三维有限元法分析变压器突发短路过程[J]. 中国电机工程学报, 2003, 23(3): 137-140. [12] 张宇, 阮江军, 刘兵, 等. 组合网格法在电磁-机械耦合问题中的应用[J]. 中国电机工程学报, 2007, 27(33): 42-47. [13] Peng Ying, Ruan Jiangjun, Zhang Yu, et al. A composite grid method for moving conductor eddy-current problem[J]. IEEE Transactions on Magnetics, 2007, 43(7): 3259-3265. [14] Zhang Yu, Ruan Jiangjun, Gan Yan, et al. Application of a composite grid method in the analysis of 3-D eddy current field involving movement[J]. IEEE Transactions on Magnetics, 2008, 44(6): 1298-1301. [15] He J L, Levi E, Zabar Z, et al. Analysis of induction- type coilgun performance based on cylindrical current sheet model[J]. IEEE Transactions on Magnetics, 1991, 27(1): 579-584. [16] He J, Levi E, Zabar Z, et al. Concerning the design of capacitively driven induction coil guns[J]. IEEE Transactions on Plasma Science, 1989, 17(3): 429- 438. [17] Elliott D G. Mesh-matrix analysis method for electromagnetic launchers[J]. IEEE Transactions on Magnetics, 1989, 25(1): 164-169. [18] Haghmaram R, Shoulaie A. Study of traveling wave tubular linear induction motors[C]. International Conference on Power System Technology, 2004: 288- 293. [19] Kaye R J. Operational requirements and issues for coilgun electromagnetic launchers[J]. IEEE Trans- actions on Magnetics, 2005, 41(1): 194-199. [20] 卡兰塔罗夫, 采伊特林. 电感计算手册[M]. 北京: 机械工业出版社, 1992.
2010, Vol. 25 
