Design Considerations for Electromagnetic Railguns

[+] Author and Article Information
Jerome Tzeng, Alexander Zielinski, Edward Schmidt

 US Army Research Laboratory, APG, MD

J. Pressure Vessel Technol 128(2), 263-266 (Jan 03, 2006) (4 pages) doi:10.1115/1.2172620 History: Received October 09, 2005; Revised January 03, 2006

Electromagnetic (EM) railguns are similar to powder guns in that both provide an accelerative force to the projectile, while accepting the resulting recoil impulse. They are designed to contain lateral and axial pressure. They must be capable of surviving the thermal environment to which they are exposed. Although there are similarities, there are also striking differences. Both are explored in the present paper with emphasis placed on EM railgun design.

Copyright © 2006 by American Society of Mechanical Engineers
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Figure 8

Vertical displacement field

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Figure 7

Horizontal displacement field

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Figure 6

Pressure distributions, hypervelocity railgun

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Figure 5

Current versus time, hypervelocity railgun

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Figure 4

In-bore pressure distribution, 30mm mauser

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Figure 3

Projectiles under consideration

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Figure 2

EM and “reaction” loads railgun components

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Figure 1

Schematic of railgun




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