• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Symposium on Electromagnetic Launch Technology >Analyzing the electromagnetic launcher with combination both FEM-3D and IEM methods in time domain
【24h】

Analyzing the electromagnetic launcher with combination both FEM-3D and IEM methods in time domain

机译：用COMP-3D和IEM方法在时域中分析电磁发射器

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The inductance gradient, current density, Force, Pressure, and Electrical Resistance are essential quantities in Railgun. The Inductance Gradient in the railgun is a function of bore dimension, Rails thickness and ohmic losses. On the other hand, moving Projectile inside the rails or in other words Time-Changing has directly effects on the inductance gradient. In this paper, first the IEM technique in time domain with introduced calculation algorithm is proposed then using the IEM-TD, a model for Railgun in time domain is presented. Using this model and its analytical solution, a basic formula for Inductance Gradient is derived with unknown coefficients versus Railgun parameters in time domain. For completing this closed formula and calculating its unknown coefficients, the samples from Railgun based on the FEM, were analyzed. From outcomes and using the smallest Square of error method, unknown coefficients are calculated. Using achievement L′ formula the applied force of Projectile is calculated and compared with other results that achievement from numerical methods in the some papers. One algorithm for calculating the output velocity of Projectile is proposed and using this algorithm, velocity of Projectile is calculated for different sizes of Rails. Effects of Rails dimension on the Inductance Gradient and current distribution at this formula are calculated and are shown in the different Figures.
机译：电感梯度，电流密度，力，压力和电阻是Railgun的必要性。 Railgun中的电感梯度是钻孔尺寸，轨道厚度和欧姆损失的函数。另一方面，在轨道内或其他单词中移动射弹时间改变对电感梯度直接影响。在本文中，首先提出了具有引入计算算法的时域中的IEM技术，然后使用IEM-TD，呈现了一个时域中的railgun模型。使用此模型及其分析解决方案，导级梯度的基本公式具有未知系数与时域中的RailgUN参数。为了完成该闭合公式并计算其未知系数，分析了基于FEM的Railgun的样本。从结果和使用最小的误差法平方，计算未知系数。使用成就L'公式计算射弹的施加力，并与其他结果的结果进行比较，这些结果与一些论文中的数值方法取得的结果。提出了一种计算射弹输出速度的算法，并使用该算法，为不同尺寸的轨道计算射弹的速度。计算轨尺寸对该公式的电感梯度和电流分布的影响，并显示在不同的附图中。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号