基于磁耦合谐振式的迫击炮动态点火效能研究  

Research on Dynamic Ignition Efficiency of Mortar Based on Magnetically Coupled Resonance

作　　者：常昊 杨臻[1] 方炜 郁卫星 王勇 CHANG Hao;YANG Zhen;FANG Wei;YU Weixing;WANG Yong(School of Mechanical and Electrical Engineering,North University of China,Taiyuan 030051,Shanxi,China;School of Electrical and Control Engineering,North University of China,Taiyuan 030051,Shanxi,China;Jianshe Industry Group(Yunnan)Co.,Ltd.,Chongqing 404100,China)

机构地区：[1]中北大学机电工程学院,山西太原030051 [2]中北大学电气与控制工程学院,山西太原030051 [3]建设工业集团(云南)股份有限公司,重庆404100

出　　处：《火炮发射与控制学报》2024年第5期48-55,共8页Journal of Gun Launch & Control

摘　　要：为研究迫击炮磁耦合谐振式动态点火效能,以系统传输效率η和点火总能量Q作为表征点火效能的要素,建立磁耦合谐振式无线能量传输数学模型,分析得出互感M、初级线圈高度H和次级线圈运动速度v是影响点火效能的关键因素,运用Maxwell仿真分析运动状态、行程及速度对迫击炮点火效能的影响。研究结果表明:运动状态会对点火效能产生较大影响,静态时互感、传输效率和点火总能量均大于动态;初级线圈螺距和匝数决定运动行程,线圈匝数越多,传输效率越高,点火总能量越小;线圈螺距越大,点火总能量越大,传输效率在螺距为5.5 mm时达到最大;次级线圈以5~20 m/s匀速运动时,随着运动速度增加,传输效率基本保持不变,点火总能量随之减少,且速度增大对点火总能量的影响逐渐减弱。In order to study the dynamic ignition efficiency of the mortar with magnetic coupling resonance,the system transmission efficiency η and the total ignition energy Q were taken as the factors to characterize the ignition efficiency.A mathematical model of magnetic coupling resonance wireless energy transmission was established,identifying mutual inductance M,primary coil height H,and secon-dary coil motion speed v as crucial factors influencing ignition efficiency.Maxwell simulation was used to analyze the influence of motion state,travel and speed on the firing efficiency of mortar.The research findings indicate that the motion state has a significant impact on ignition efficiency,with mutual inductance,transmission efficiency,and total ignition energy being higher in static conditions compared to dynamic ones.The pitch and number of turns of the primary coil determine the motion stroke,where more coil turns lead to higher transmission efficiency and lower total ignition energy.Moreover,larger coil pitches result in higher total ignition energy,while transmission efficiency peaks at a pitch of 5.5 mm.When the secondary coil moves at a constant speed of 5~20 m/s,transmission efficiency remains relatively stable with increasing speed,resulting in a decrease in total ignition energy.Furthermore,the influence of increased speed on total ignition energy gradually diminishes.

关 键 词：磁耦合谐振式 动态点火 点火效能 系统传输效率 点火总能量 

分 类 号：TJ450.2[兵器科学与技术—火炮、自动武器与弹药工程]