【作者】 冯波；

【导师】 栗保明；

【作者基本信息】 南京理工大学 ， 动力工程（专业学位）， 2021， 硕士

【摘要】 脉冲功率电源技术作为电磁发射技术的关键技术,其研究水平决定着电磁武器的工程化应用。本文以一种脉冲功率电源模块为研究对象,建立仿真模型对其中的电磁,力学参数等计算并且结合模块放电实验进行论证分析,对推进电源模块向小型化,轻量化,高储能密度化方向发展具有一定的参考意义。主要工作内容如下:(1)综述脉冲功率电源模块的组成和工作原理,对其中的主要元器件的功能进行阐述并且说明本文所用有限元计算原理。(2)介绍脉冲功率电源模块的实验系统并进行单模块放电测试,以实验结果作为本文仿真计算外部激励的数据来源。(3)时域激励仿真分析。主要计算脉冲功率电源模块各部件所受电磁力随时间变化情况以及力分布图,计算不同时刻脉冲功率电源模块电流密度分布,磁场情况,以及不同时刻电源装置所受电磁力,并进行分析。(4)频域激励仿真分析。计算不同频率下对应电流为激励所对应的脉冲功率电源模块磁场情况,以及对比虚位移法和洛伦兹力法计算脉冲功率电源模块各部件不同位置在不同频率电流激励下所受电磁力情况,最后计算不同频率下脉冲功率电源模块的各部件电流、磁场密度,磁场能量等情况以及对各个计算结果进行系统分析。(5)对脉冲功率电源模块的结构强度与刚度进行计算,得到各部分应力分布云图,为脉冲功率电源模块结构改进提供参考。本文借由脉冲功率电源模块放电实验获取数据,经过理论分析和仿真计算研究脉冲功率电源模块内部电磁场特性及工程应用中的薄弱部位。结果表明,论文中关于脉冲功率电源模块的分析方法和计算模型对电源模块的紧凑化设计具有一定的参考意义,有助于实现良好的脉冲电源电磁兼容性。更多还原

【Abstract】 As the key technology of electromagnetic launch technology,pulse power supply technology,its research level determines the engineering application of electromagnetic weapons.This paper takes a pulsed power supply module as the research object,establishes a simulation model to calculate the electromagnetic and mechanical parameters,and conducts demonstration and analysis combined with the module discharge experiment.Development has certain reference significance.The main work contents are as follows:(1)Summarize the composition and working principle of the pulse power supply module,expound the functions of the main components and explain the finite element calculation principle used in this paper.(2)The experimental system of the pulse power power supply module is introduced and the single-module discharge test is carried out,and the experimental results are used as the data source for the simulation and calculation of the external excitation in this paper.(3)Time domain excitation simulation analysis.It mainly calculates the time variation and force distribution diagram of the electromagnetic force on each component of the pulsed power supply module,calculates the current density distribution of the pulsed power supply module at different times,the magnetic field,and analyzes the electromagnetic force on the power supply device at different times.(4)Simulation analysis of frequency domain excitation.Calculate the magnetic field of the pulsed power supply module corresponding to the excitation of the corresponding current at different frequencies,and compare the virtual displacement method and the Lorentz force method to calculate the electromagnetic force of each part of the pulsed power supply module at different positions under the excitation of different frequencies of current.Finally,the current,magnetic field density and magnetic field energy of each component of the pulse power supply module at different frequencies are calculated,and each calculation result is systematically analyzed.(5)Calculate the structural strength and stiffness of the pulse power supply module,and obtain the stress distribution cloud map of each part,which provides a reference for the structural improvement of the pulse power supply module.In this paper,the data obtained by the discharge experiment of the pulse power power supply module are studied through theoretical analysis and simulation calculation to study the internal electromagnetic field characteristics of the pulse power power supply module and the weak parts in engineering applications.The results show that the analysis method and calculation model of the pulsed power supply module in the paper have certain reference significance for the compact design of the power supply module,and help to achieve good electromagnetic compatibility of the pulsed power supply.更多还原