摘要
为优化单级直馈线圈发射器的结构参数和3级直馈线圈发射器的能量分配,建立了3级直馈线圈发射器的场-路耦合数学模型和有限元分析模型,采用数值计算方法和有限元分析方法计算了2种模型的准确性,结果显示2种模型计算的运动数据和电路数据基本吻合,证明了2种模型具有较高的准确性。基于建立的3级直馈线圈发射器的参数化模型,采用差分进化算法实现了单级直馈线圈发射器结构参数的优化和3级直馈线圈发射器能量分配的优化,结果显示迭代过程具有良好的收敛性,单级优化60次收敛,3级优化100次收敛;经过优化,单级出口速度由27.5 m/s提升到30.8 m/s,输出效率提升了6%,单级电流峰值由19 kA下降到8 kA,降幅为57.9%,3级出口速度由56.4 m/s上升为60.4 m/s,输出效率提升了5%,3级电流峰值由25 kA下降为10 kA,降幅为60%,证明了差分进化算法针对直馈线圈发射器多维优化问题具有良好的寻优能力,该优化方法和结果可为直馈线圈发射器参数优化设计提供参考。
In order to optimize the structural parameters of the single-stage direct fed coil launcher and the energy distribution of the three-stage direct fed coil launcher,a field path coupling mathematical model and finite element analysis model of the three-stage direct fed coil launcher are established.The accuracy of the two models is calculated by adopting numerical calculation methods and finite element analysis methods.The results show that the motion data and circuit data calculated by the two models are basically consistent,proving that the two models have high accuracy.Based on the established parameterized model of the 3-level direct fed coil launcher,the differential evolution algorithm is used to optimize the structural parameters of the single-stage direct fed coil launcher and the energy allocation of the 3-level direct fed coil launcher.The results show that the iterative process is good at convergence with convergence being 60 iterations for single-stage optimization and 100 iterations for 3-level optimization.The optimization being over,the single-stage outlet speed increases from 27.5 m/s to 30.8 m/s with an output efficiency being improvement of 6%.The peak single-stage current decreases from 19 kA to 8 kA with a decrease of 57.9%.The 3-stage outlet speed increases from 56.4 m/s to 60.4 m/s with an output efficiency being improvement of 5%.The peak 3-stage current decreases from 25 kA to 10kA with a decrease of 60%.The result show that the differential evolution algorithm has a good ability to optimize for multi-dimensional optimization problems of direct fed coil launchers.
作者
时建明
张微星
刘俊杰
SHI Jianming;ZHANG Weixing;LIU Junjie(Air Defense and Antimissile School,Air Force Engineering University,Xi'an 710051,China)
出处
《空军工程大学学报》
北大核心
2026年第1期87-96,共10页
Journal of Air Force Engineering University
关键词
启发式算法
线圈型电磁发射器
直馈线圈
有限元仿真
结构参数优化
能量分配优化
heuristic algorithm
coil type electromagnetic launcher
direct fed coil
finite element simulation
structural parameter optimization
energy allocation optimization
