高压物理学报2009，Vol.23Issue(3)：167-172,6.
渐变阻抗飞片超高速发射数值模拟
Numerical Simulation of Hypervelocity Launch of Flier Plate with Gradual Change Impedance
陈朗 1刘群 1鲁建英 1龚自正 2郭欣伟3
作者信息
- 1. 北京理工大学爆炸科学与技术国家重点实验室,北京,100081
- 2. 防化指挥工程学院,北京,102205
- 3. 中国空间技术研究院总装与环境工程部,北京,100094
- 折叠
摘要
Abstract
A graded-density flier plate with gradual change impedance was designed to launch the secondary flier plate in hypervelocity on a light gas gun.The impact surface of graded-density flier plate was made of magnesium,the base surface was made of tungsten,and the middle part was made of the mixture of magnesium,copper and tungsten.A calculating model of hypervelocity launch was developed.The numerical simulations of hypervelocity launch with graded-density flier plate were conducted.The effects of change law of impedance,diameter of secondary flier plate and thickness of buffer on the secondary flier plate velocity were analyzed.The calculated results indicated that the maximum velocity of the secondary flier plate exceeded 16 km/s in the condition of optimizing the change law of impedance of graded-density flier plate,diameter of secondary flier plate,and thickness of buffer.关键词
轻气炮/超高速发射/变波阻抗飞片/数值模拟Key words
light-gas gun/hypervelocity launch/flier plate of graded impedance/numerical simulation分类
数理科学引用本文复制引用
陈朗,刘群,鲁建英,龚自正,郭欣伟..渐变阻抗飞片超高速发射数值模拟[J].高压物理学报,2009,23(3):167-172,6.
