基于轨道结构和电磁特性的电磁发射器电感梯度分析  

Analysis of Inductance Gradient of Electromagnetic Launcher Based on Rail Structure and Electromagnetic Characteristics

作　　者：周鹏飞 陈启明[1] 党义斐 侯少杰 ZHOU Peng-fei;CHEN Qi-ming;DANG Yi-fei;HOU Shao-jie(The 27th Research Institute of China Electronics Technology Group Corporation,Zhengzhou 450047,China)

机构地区：[1]中国电子科技集团公司第二十七研究所,郑州450047

出　　处：《电光系统》2024年第1期52-59,共8页Electronic and Electro-optical Systems

摘　　要：根据Kerrisk推导得出的矩形轨道电感梯度计算数学模型,构建出轨道高度h、轨道宽度W和轨道间距s与电感梯度L'之间的四维函数变化关系,从而直观地表明了电感梯度随轨道结构参数变化的趋势。为了了解电感梯度的电磁特性变化机理,通过电磁物理量磁失势A推导得出轨道截面平均磁失势A与电感梯度之间的关系式,从而简化了电感梯度的电磁理论分析。物理概念清晰,易于理解与指导工程实践。同时又分别对不同轨道结构参数、不同轨道截面形式和交变电磁环境下,影响电感梯度的主要因素进行电磁特性变化理论分析与研究,从而了解了这些因素对电感梯度的影响。Based on the mathematical model for calculating the inductance gradient(IG)of a rectangular rail derived by Kerrisk,the four-dimensional function relationship between the main parameters is built,including:rail height(h),rail width(w),rail space(s)of the rail and the inductance gradient L',so then it intuitively indicates the trend of IG changes with the parameters of the rail structure.In order to understand the electromagnetic characteristic variation mechanism of IG,the relationship between the A(average magnetic vector potential)of the rail cross section and the IG is derived through the electromagnetic physical quantity A(magnetic vector potential),thereby simplifying the electromagnetic theoretical analysis of IG.The physical concept is clear and easy to understand and guide engineering practice.At the same time,theoretical analysis and research are conducted on the electromagnetic characteristics of the main factors affecting the IG under different rail structural parameters,different rail cross-sectional forms,and alternating electromagnetic environments,in order to understand the influence of these factors on the IG.

关 键 词：电磁发射 轨道结构 电感梯度 磁失势 电磁机理 

分 类 号：O441.4[理学—电磁学]