单级感应线圈炮场路耦合运动时步有限元分析  

Field Circuit and Movement Coupled Time Stepping Finite Element Analysis on Single-Stage Inductive Coil Gun

作　　者：关晓存[1] 雷彬[1] 李治源[1] 

机构地区：[1]军械工程学院三系,石家庄050003

出　　处：《电工技术学报》2011年第9期138-143,150,共7页Transactions of China Electrotechnical Society

摘　　要：基于麦克斯韦方程组,提出了一种适用于单级感应线圈炮的场路耦合运动时步分析方法,对于瞬态涡流场与电路耦合问题,应用了Crank-Nicholson法进行求解;对于运动问题,采用运动坐标系的方法进行求解;电磁力采用了节点力法求解;解决了单级感应线圈炮在脉冲供电时场路耦合分析问题,建立了单级感应线圈炮电磁场-电路-运动系统二维耦合模型。应用上述模型对单级感应线圈炮进行分析,计算结果与实验结果相吻合,验证了该模型的正确性。Based on Maxwell equation,a time stepping finite element analysis（FEA） model coupled circuit field and movement used in analyzing single-stage inductive coil gun is presented in this paper,which could solve the problem of impulsing power supply in field-circuit coupled FEA.The transient 2D magnetic field circuit coupling problems are solved by the Crank-Nicholson method,and the problems of motion is handled by the moving coordinates.The force is calculated by nodal force method.The paper sets up the 2D transient electromagnetic field-circuit-moving model of single-stage inductive coil gun.The performance of a single-stage inductive coil gun is analyzed using above model.The calculation result is very close to the measure results,which verifies the model accuracy.

关 键 词：线圈炮 场路耦合 瞬态涡流场 节点力法 

分 类 号：TM154[电气工程—电工理论与新技术]