Development of Tree-Stage Light-Gas Gun

树级光气枪的研制

• 批准号: 05505005
• 负责人: KONDO Ken-ichi
• 金额: $ 36.86万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (A)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-05505005/
• 关键词: two-stage light-gas gun; hyper velocity; shock wave; very high pressure; projectile acceleration; Dopler-laser interferometer; Numerical Simulation; 超加速

A three-stage light-gas gun having a preheating and filling stage of gas was designed and installed in order to regulate the initial energy of the light gas independently. Although the operation and the performance of gun become so complicated, the computer simulations for the gun indicate many advantages ; e.g., a scale of the gun much decreases in comparison with a conventional two-stage light-gas gun at the same value of the maximum obtainable projectile velocity. Since the computer code developed by this research is convenient and well represents the performance of the light-gas gun, the values of various energy-loss parameters are determined in comparison with the experimental values of the piston velocity, combustion gas pressure, and so on. However, leakage of gas at the initial acceleration induces some serious misfit to the calculation which requires to modify the projectile mouting system.

设计和安装了一个具有预热和填充阶段的三阶段的轻型气枪，以便独立调节轻质气体的初始能量。尽管枪支的操作和性能变得如此复杂，但枪支的计算机模拟表明了许多优势。例如，与常规的两阶段轻型气枪相比，枪的尺度大大减少，其最大可获得的弹丸速度的值相同。由于这项研究开发的计算机代码很方便，并且很好地代表了轻气枪的性能，因此与活塞速度，燃烧气压等的实验值相比，确定了各种能量损失参数的值。但是，在初始加速度下气体的泄漏引起了对计算的严重失误，该计算需要修改弹丸修订系统。

项目成果

H. Hirai et al.: "Dependence of Diamond Transition on Microstructure in Graphite Starting Materials under shock Compression" J. Am. Ceram. Soc.78. 2079-2084 (1995)

H. Hirai 等人：“冲击压缩下金刚石转变对石墨起始材料微观结构的依赖性”J. Am。

近藤建一: "二段式軽ガス銃の動作に及ぼす因子" 高圧力の科学と技術. 3. 158-158 (1994)

Kenichi Kondo：“影响两级轻气枪操作的因素”高压科学与技术。3. 158-158 (1994)。

K.KONDO,Y,HIRONAKA,H,ITOH,H.SUGIURA,S.OZAKI,A.TAKEBA,and M.KATAYAMA: "A Trial of the Three-Stage Light-Gas Gun with Preheating Stage" Shock Compression of Condensed Matter-1995. (in pressing).

K.KONDO,Y,HIRONAKA,H,ITOH,H.SUGIURA,S.OZAKI,A.TAKEBA,and M.KATAYAMA：“带有预热阶段的三级光气枪的试验”凝聚态物质的冲击压缩

H. Hirai et al.: "Predominant parameters in the shock-induced transition from graopite to diamond" J. Appl. Phys.78. 3052-3059 (1995)

H. Hirai 等人：“冲击引起的从石墨云母到金刚石转变的主要参数”J. Appl。

H.HIRAI and K.KONDO: "Changes in structure and electronic state from C60 fullerene to amorphous diamond" Phys.Rev.B51. 555 (1995)

H.HIRAI 和 K.KONDO：“从 C60 富勒烯到非晶金刚石的结构和电子态变化”Phys.Rev.B51。