The Influence of Tube Support Conditions on Muzzle Motions.
Abstract
This study addressed the effect of clearances between the tube and its support and the effect of support stiffness on the muzzle motions produced when a weapon is fired. A small-scale test weapon was designed, fabricated, and tested during the study. The test weapon included provisions for changing the clearance between the tube and the tube support sleeve and for changing support stiffness. Breech eccentricity and lubrication between sliding surfaces were also varied. A series of experiments was conducted in which tube support conditions were systematically varied and transverse motions of the tube were measured at eight locations. Additional measurements included tube recoil, timing of the firing pulse, chamber pressure, muzzle exit time, and muzzle velocity. Tube lateral motions were measured with noncontacting inductance transducers, and instrumentation systems for these and other transducers are described. Tube motions of the test weapon were calculated by the finite element method for comparison with the experimental results. The initial positions of the tube within the tube support sleeve, tube radial expansion, and tube support stiffness were found to be significant parameters affecting the predicted tube motion. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1982
- Accession Number
- ADA119726
Entities
People
- J. C. Hokanson
- P. A. Cox
Organizations
- Southwest Research Institute