高速多极矩场电磁发射瞬态场与抛体耦合动力学及能量转化机理研究

项目名称： 高速多极矩场电磁发射瞬态场与抛体耦合动力学及能量转化机理研究

项目编号： No.51207097

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 电气科学与工程学科

项目作者： 朱英伟

作者单位： 四川大学

项目金额： 25万元

中文摘要： 电磁发射器具有发射质量范围大、出口初速度快、发射效率高、能源简易、工作性能优良、可控性好和结构多样等优点，使其在未来军事武器、科学研究、航天和交通、民用工业等相关领域有着广泛的应用潜力。本课题探索应用径向磁场与环向电流相互作用进行电磁发射的思想，在国内外首次提出多极矩场线圈型电磁发射模式，建立多极矩场电磁发射的数学模型和机电方程，着重对高速多极矩场线圈型电磁发射瞬态场与抛体耦合动力学及能量转化机理进行研究，并对高速多级线圈型电磁发射装置进行系统设计和演示性实验。本课题的工作解决高速电磁发射电磁场与运动导体耦合作用的机理问题，建立导轨型和线圈型电磁发射的统一能量转化模型，期望能够为实验研究和工程应用提供一定的理论支撑和设计依据。

中文关键词： 电磁发射；多极矩磁场；涡流；耦合动力学；能量转化效率

英文摘要： Electromagnetic launcher has such advantages as no launch mass limit, high muzzle velocity, and simplified energy source, higher launch efficiency, and good working performance, easily controllable and large variety of launch structure. The most promising application for electromagnetic launch is used by the military weapons, scientific research, spaceflight and transportation, and civil industry has extensive application potential. For the first time in the world, this project presents a new idea of radial magnetic field interacting with azimuthal current for electromagnetic launch, and proposes a novel multipole field electromagnetic launch mode. We give the system design and analyses the performance of multipole field electromagnetic launcher. The mathematics model and electromechanics equation of multipole field electromagnetic launch are established. Our research focuses on the coupling dynamics and energy conversion principle as the transient field interact on the moving conductor. The high-speed multipole field electromagnetic launcher system will be designed and constructed. We will resolve the coupling dynamics of electromagnetic launchers, and will establish the energy conversion model of railgun and coilgun. Our work will afford the experiment research and engineering application for some basic theory

英文关键词： Electromagnetic launch；multipole magnetic field；eddy current；coupling dynamics；energy conversion efficiency