CAJ | 학술논문

根据电磁线圈炮中推力线圈与电枢之间的感应耦合方程和电枢动态响应方程，考虑发射过程中推力线圈和电枢的欧姆加热，开发了电磁线圈炮的计算程序，给出了程序的算法和流程。分析了程序的收敛性，认为最大时间步长和电枢最大网格均依赖于驱动脉冲波形的上升时间。通过模拟结果与单级线圈炮实验测量结果的比较，验证了程序的有效性。模拟的线圈电流波形与实验波形吻合较好，模拟的出口速度比测量速度大约6.5%。程序收敛性和有效性的验证表明该程序可用于电磁线圈炮系统的初步设计。
근거전자선권포중추력선권여전추지간적감응우합방정화전추동태향응방정，고필발사과정중추력선권화전추적구모가열，개발료전자선권포적계산정서，급출료정서적산법화류정。분석료정서적수렴성，인위최대시간보장화전추최대망격균의뢰우구동맥충파형적상승시간。통과모의결과여단급선권포실험측량결과적비교，험증료정서적유효성。모의적선권전류파형여실험파형문합교호，모의적출구속도비측량속도대약6.5%。정서수렴성화유효성적험증표명해정서가용우전자선권포계통적초보설계。
A coilgun design code is programmed according to the formulas describing the inductive coupling between the thrust coils and the armature,the dynamic response of the armature,and the ohmic heating in the thrust coils and armature.The algorithms determining the operation status of the driven pulse forming network are presented.The convergence of the code is an-alyzed.The maximum time-step and mesh size of the armature are dependent on the rise time of the driven pulse current.The code is validated by comparing the simulated results with the experimental ones.The calculated coil current wave is in agreement with the experimental results.However,the calculated velocity is higher than the measured one about 6.5%.The convergence and validation of the code indicate that it can be used for the primary design for a coilgun system.