磁后坐发电机磁场的有限元分析  

Analysis of Magnetic Setback Generator in Fuze Based on Finite Element Method

作　　者：杨振兴[1] 李福松[2] 张美绒[2] 杜永龙[1] 

机构地区：[1]机电工程与控制国家级重点实验室,陕西西安710065 [2]西安机电信息研究所,陕西西安710065

出　　处：《探测与控制学报》2009年第5期56-59,共4页Journal of Detection & Control

摘　　要：在磁后坐发电机的工程设计中,主要通过磁路解析法计算初始位置线圈磁通来估算空载电压,大量的直接近似处理使得最终计算结果误差较大。为此,引入有限元法对磁后坐发电机的二维轴对称瞬态磁场进行场路耦合分析。运用有限元分析软件Ansoft进行仿真,输出电压与对应试验结果对比误差较小,说明有限元法用于磁后坐发电机工程计算,精度较高,并且能得到工作中的瞬态信息,可以代替以前的方法。In the design of magnetic setback generator,voltage of coil in open circuit is usually estimated by magnetic circuit analysis which may lead to an inaccurate result because of amount of direct approximate processing.Therefore,the FEM（finite element method） is introduced to do the coupled field-circuit analysis for 2D axisymmetric transient magnetic field.By using the Ansoft software,the simulated output voltage achieves high precision compared with the test result,which shows the FEM can be used as a more effective method for magnetic setback generator design.

关 键 词：引信电源 磁后坐发电机 有限元 场路耦合 

分 类 号：TM153[电气工程—电工理论与新技术]