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平顶尺寸与起爆环半径对复合药型罩形成射流的影响 被引量:1
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作者 冯志威 王志军 +1 位作者 尹建平 张小静 《兵工自动化》 2021年第3期10-13,39,共5页
为研究复合药型罩平顶尺寸与起爆环半径对射流头部速度及成形的影响,对不同平顶尺寸和起爆环半径的铜-铝复合药型罩进行数值模拟。利用AUTODYN-2D模拟药型罩的变形和射流的形成及断裂的过程,仿真平顶尺寸对射流的影响、起爆环大小对双... 为研究复合药型罩平顶尺寸与起爆环半径对射流头部速度及成形的影响,对不同平顶尺寸和起爆环半径的铜-铝复合药型罩进行数值模拟。利用AUTODYN-2D模拟药型罩的变形和射流的形成及断裂的过程,仿真平顶尺寸对射流的影响、起爆环大小对双层药型罩形成射流的影响、平顶尺寸与起爆环半径对射流成形的影响,并分析外罩挤破内罩状况。结果表明:小起爆环半径时,药型罩平顶尺寸越小,射流头部速度越高;大起爆环半径时,较大的平顶尺寸可获得较高的射流头部速度,平顶尺寸增加到装药口径20%左右时,成形中会出现内罩挤破外罩的现象。 展开更多
关键词 平顶尺寸 环形起爆 复合药型罩 数值模拟
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The Enhanced Measurements of Laser Micro-jet Processing
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作者 Xizhao Lu Haihe Xie +1 位作者 Chun Lin Yuanqing Huang 《Journal of Modern Physics》 2011年第3期109-112,共4页
In the paper, the enhanced measurements of the laser micro-jet processing are discussed. In fact, within pure water breakdown threshold of laser, the less focal which focused with the appropriate focusing lens and the... In the paper, the enhanced measurements of the laser micro-jet processing are discussed. In fact, within pure water breakdown threshold of laser, the less focal which focused with the appropriate focusing lens and the small nozzle of water chamber enhance the laser power density ,at the same time, the laser beam transport in the wave guided water with the proper total reflection angle. The laser power which depended on the properties of the diameter, the coupling water chamber and the coupling efficiency of the micro-jet and laser beam expect of the properties of laser. 展开更多
关键词 Focusing Lens FOCAL Spot size Nozzle of Water CHAMBER LASER Micro-Jet flat-topped BREAKDOWN Threshold
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