Projectile Foundation Moment Generation Phase II
Abstract
In this second phase of the project, an analytical and experimental study was undertaken to determine the restoring or foundation moment of an obturated projectile as it moves down the gun barrel. The first phase of the project showed that for a fixed projectile, this foundation moment was very large, and that for a moving projectile it would be less, but still large. This phase of the project consisted of analysis and test of a projectile which is sliding down the gun barrel. An apparatus was constructed to input a measured angular deflection into the projectile's travel and measure the amount of force which was required to input this measured deflection. The same conclusions are reached about the foundation moment as were reached in the first phase of this project, namely that it is large. Conclusions are also reached about the efficacy of the finite element method for analysis of this problem and the importance of the properties of the nylon rotating or obturator band.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1984
- Accession Number
- ADA147368
Entities
People
- D. R. Ells
- E. M. Patton
- L. A. Strope
- L. R. Shotwell