Numerical simulations of gun-launched kinetic energy projectiles subjected to asymmetric projectile base pressure
Three-dimensional numerical simulations were performed to determine the effect of an asymmetric base pressure on kinetic energy projectiles during launch. A matrix of simulations was performed in two separate launch environments. One launch environment represented a severe lateral load environment, while the other represented a nonsevere lateral load environment based on the gun tube straightness. The orientation of the asymmetric pressure field, its duration, the projectile`s initial position, and the tube straightness were altered to determine the effects of each parameter. The pressure asymmetry translates down the launch tube to exit parameters and is washed out by tube profile. Results from the matrix of simulations are presented.
- Research Organization:
- Los Alamos National Lab., NM (United States)
- Sponsoring Organization:
- Department of Defense, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 10114784
- Report Number(s):
- LA-UR--91-3988; CONF-920689--1; ON: DE92005065
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
450000
99 GENERAL AND MISCELLANEOUS
990200
ASYMMETRY
COMPUTERIZED SIMULATION
FINITE ELEMENT METHOD
GUNS
LAUNCHING
MATHEMATICS AND COMPUTERS
MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
NUMERICAL SOLUTION
PRESSURE DEPENDENCE
PROJECTILES
TUBES