摘要
运用非线性动力学仿真软件Autodyn-2D的Euler算法进行数值仿真,材料模型为壳体用硬铝Al 2024-T4,内层药型罩用紫铜COPPER,密度为8.93 g/cm^3,外层药型罩采用硬铝Al 2024-T4,炸药用COMPBJJ1,密度为1.717 g/cm^3,隔板材料为尼龙NYLON,密度为1.14 g/cm^3。随着隔板直径d的增大,射流速度不断增大,但射流形态变差,对本文构建的直径100 mm样弹模型而言,当隔板直径为84 mm时,射流性能最优;研究隔板平台长度对射流性能的影响时,发现当隔板平台的长度x=20 mm时,射流速度最大;当x=10 mm时,射流长度达到最大;所以x应该选择为10~20 mm。
The Euler algorithm of the nonlinear dynamics simulation software autodyn-2d was used for numerical simulation.The material model for using hard Al 2024-T4 aluminum shell,the inner cover type medicine with COPPER COPPER,density of 8.93 g/cm^3,outer type medicine cover made hard Al 2024-T4 aluminum powder used COMPBJJ1,density of 1.717 g/cm^3,diaphragm material is NYLON,NYLON,density of 1.14 g/cm^3,along with the rising of the baffle plate diameter,jet speed increasing,but the jet form will become worse,when the diaphragm diameter is 84 mm,the jet performance to achieve the optimal;When studying the influence of the length of the baffle platform on the jet performance,it is found that when x=20 mm,the jet velocity reaches the maximum.When x=10 mm,the length of jet reaches the maximum;So x should be somewhere between 10 and 20 mm.
作者
段聪慧
尹建平
马国徽
张小静
DUAN Conghui;YIN Jianping;MA Guohui;ZHANG Xiaojing(College of Mechatronic Engineering, North University of China, Taiyuan 030051, China;The First Military Office of the Army in Nanyang Area, Nanyang 473000, China)
出处
《兵器装备工程学报》
CAS
北大核心
2020年第11期51-54,共4页
Journal of Ordnance Equipment Engineering
基金
国家自然科学基金项目(11572291)
瞬态冲击重点实验室基金项目(61426060101)。
关键词
隔板
双层药型罩
数值仿真
separator
double liner
numerical simulation
