NDLI: Plasma Armatures for Railguns

Content Provider	IEEE Xplore Digital Library
Author	Jianxin Nie Qingjie Jiao Jun Li Yingchun Gui Marshall, R.A.
Copyright Year	1973
Abstract	Renewed interest has arisen in plasma armatures as evidenced by two papers presented at the 2008 EML Symposium. It is hoped that the work at the University of Texas described in these papers succeeds. There may, however, be some uncertainties related to the nature of plasma armatures in that work. The thoughts we offer here may help. It is not yet obvious how the 6-km/s velocity limit encountered in the Canberra railgun can be overcome. In the years following this discovery, a considerable number of experiments were conducted on the subject with no clear outcome. One strategy for overcoming the velocity limit may be to vent the bore behind the armature. In order to do this, it is necessary to find out how long the armature must be to be effective. Too long would make the venting process unwieldy. Too short and the armature losses will rise to unacceptable levels. Further, the method we suggest for implementing the venting strategy may be extended to prevent damage to the railgun rails caused by the arcing current transfer from rails to armature. We examine the possibilities and implications involved in implementing these strategies.
Sponsorship	IEEE Nuclear and Plasma Sciences Society
Starting Page	452
Ending Page	455
Page Count	4
File Size	230839
File Format	PDF
ISSN	00933813
Volume Number	39
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Plasmas Railguns Rails Insulators Vents Payloads Electromagnetics vented bore Plasma armature railgun secondary arc
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Condensed Matter Physics

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Theoretical and Experimental Analysis of Breech Fed and 40-Distributed Energy Stage Plasma Arc Railguns

Simulations on Arc Surfaced C-Shaped Armatures for Round-Like Bore Railguns

A 40-Stage Synchronous Distributed Energy Railgun

Secondary Arc Formation Within a Distributed Energy Railgun

Analytical Study of the Injection of a Moving Projectile Into a Railgun

The Use of High-Speed Video as an In-Bore Diagnostic for Electromagnetic Launchers

Study on the Curve Shape of C-Shaped Armature's Trailing Arms in Rectangular Bore Railgun

Investigations of the Armature–Rail Contact Pressure Distribution in a Railgun

Augmentation of Current Ramp-Down Contact Pressure in C-Shaped Armature Railguns

Plasma Armatures for Railguns

Similar Documents

Theoretical and Experimental Analysis of Breech Fed and 40-Distributed Energy Stage Plasma Arc Railguns

Simulations on Arc Surfaced C-Shaped Armatures for Round-Like Bore Railguns

A 40-Stage Synchronous Distributed Energy Railgun

Secondary Arc Formation Within a Distributed Energy Railgun

Analytical Study of the Injection of a Moving Projectile Into a Railgun

The Use of High-Speed Video as an In-Bore Diagnostic for Electromagnetic Launchers

Study on the Curve Shape of C-Shaped Armature's Trailing Arms in Rectangular Bore Railgun

Investigations of the Armature–Rail Contact Pressure Distribution in a Railgun

Augmentation of Current Ramp-Down Contact Pressure in C-Shaped Armature Railguns

Plasma Armatures for Railguns