Investigation of Damage to Solid-Armature Railguns at Startup
Investigation of Damage to Solid-Armature Railguns at Startup
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DOI：
10.1109/tmag.2006.887432
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发表时间：
2007
影响因子：
2.1
通讯作者：
T. Watt;F. Stefani;M. Crawford;H. Mark;J. Parker
中科院分区：
文献类型：
--
作者：
T. Watt;F. Stefani;M. Crawford;H. Mark;J. Parker
本文介绍了研究工作中观察到的固体电枢轨道炮在先进技术研究所，得克萨斯大学奥斯汀分校的轨道损坏机制。损坏发生在钢轨的起始部分，与高速现象（如超高速气刨或过渡到电弧接触）无关。我们称之为开槽的损坏局限于与绝缘体相邻的轨道区域。在本文中，我们描述了在多个测试中观察到的沟槽损伤使用铜导轨。在一个系列中，我们在一对铜导轨上测试了多达20次射击，我们获得了一毫米深，几毫米宽的凹槽。我们提出的证据表明，开槽是由液体侵蚀，而不是等离子体加热或机械变形的结果
This paper describes work investigating a rail damage mechanism observed in solid-armature railguns at the Institute for Advanced Technology, The University of Texas at Austin. The damage occurs in the starting section of rails and is not associated with high-speed phenomena such as hypervelocity gouging or transition to arcing contact. The damage, which we call grooving, is localized to the region of the rails adjacent to the insulators. In this paper, we describe grooving damage observed in multiple tests using copper rails. In one series, in which we tested up to 20 shots on one pair of copper rails, we obtained grooves on the order of a millimeter deep and several millimeters wide. We present evidence that grooving is caused by liquid erosion and is not a result of plasma heating or mechanical deformation