| 波阻抗梯度飞片的特性研究 |
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| 引用本文： | 何远航,董良慈,张庆明.波阻抗梯度飞片的特性研究[J].北京理工大学学报,2007,27(12):1050-1052. |
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| 作者姓名： | 何远航 董良慈 张庆明 |
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| 作者单位： | 北京理工大学,宇航科学技术学院,北京,100081;北京理工大学,宇航科学技术学院,北京,100081;北京理工大学,宇航科学技术学院,北京,100081 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 基于波阻抗梯度飞片撞击二次飞片时的准等熵压缩特性,给出了波阻抗梯度飞片的设计原则.根据该设计原则,设计了一种由TPX、镁合金、铝、钛、铜、钽等材料组成的波阻抗梯度飞片,并计算了该梯度飞片的波阻抗分布.计算结果表明,该梯度飞片前后表面的波阻抗与二级飞片波阻抗的比值分别为0.08和2.45.
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| 关 键 词： | 梯度飞片 波阻抗 超高速发射 |
| 文章编号： | 1001-0645（2007）12-1050-03 |
| 收稿时间： | 2007-09-06 |
| 修稿时间： | 2007年9月6日 |
Research on the Characteristics of Flier-Plate Material with Graded Impedance |
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| HE Yuan-hang,DONG Liang-ci and ZHANG Qing-ming.Research on the Characteristics of Flier-Plate Material with Graded Impedance[J].Journal of Beijing Institute of Technology(Natural Science Edition),2007,27(12):1050-1052. |
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| Authors: | HE Yuan-hang DONG Liang-ci and ZHANG Qing-ming |
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| Institution: | School of Aerospace Science and Engineering,Beijing Institute of Technology,Beijing 100081,China;School of Aerospace Science and Engineering,Beijing Institute of Technology,Beijing 100081,China;School of Aerospace Science and Engineering,Beijing Institute of Technology,Beijing 100081,China |
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| Abstract: | Based on the quasi-isentropic property of flier-plates with graded wave impedance impacting on the secondary flier-plate, design rules for flier-plates with graded wave impedance are proposed. According to the design rules, a flier-plate consisting of a set of materials including TPX, MB2, Al, Ti, Cu and Ta is presented, and the impedance distribution of this flier-plate is calculated. The results show that the wave impedance ratios of front and rear surfaces of the to the flier-plate to that of the secondary flier-plate are 0.08 and 2.45 respectively. |
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| Keywords: | graded-impedance flier-plate wave impedance hypervelocity launchers |
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