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RESEARCH PAPERS

Two and Three-Dimensional Simulations of Moving Pressure Fronts in Gun Tubes

[+] Author and Article Information
D. A. Rabern, M. W. Lewis

Technical Engineering Support, Los Alamos National Laboratory, Los Alamos, NM 87545

J. Pressure Vessel Technol 114(2), 181-188 (May 01, 1992) (8 pages) doi:10.1115/1.2929027 History: Received December 14, 1990; Revised November 18, 1991; Online June 17, 2008

Abstract

Options were added to the PRONTO2D and PRONTO3D structural dynamics finite element codes to include the effect of a traveling pressure front that follows a projectile while transiting pressurizing axisymmetric and nonstraight gun tubes. Pressure varied in magnitude and location with time and projectile displacement to predict the dynamic structural response of the projectile and gun tube. Two and three-dimensional simulations were performed to study the effect of this pressure front and its influence on projectile gun tube interaction and lateral movement of the projectile in the gun tube caused by variation of the gun centerline during projectile launch and recoil. Discussions of theory, implementation, and results from simulations are presented.

Copyright © 1992 by The American Society of Mechanical Engineers
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