Open AccessAcoustic pressure and flame generation determinations in case of mechanical and gas-dynamic processes for small caliber weapons
Author(s) -
Neculai-Daniel Zvîncu,
A. D. Mandache-Dodoiu,
Georgeta Diaistoran,
L. O. Haller
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/591/1/012073
Subject(s) - caliber , muzzle , microphone , muzzle velocity , acoustics , sound pressure , noise (video) , barrel (horology) , small arms , mechanical engineering , computer science , engineering , materials science , physics , artificial intelligence , business , projectile , international trade , metallurgy , image (mathematics)
This paper presents results on the subject of the noise and flame generated by firing different weapons systems as part of determining safety measures for the weapons operators and specific safety distances for the involved personnel. Firing involves a series of mechanical and gas-dynamic processes sustained in a very short amount of time, some perceptible, some partially perceptible by humans, others not, therefore the use of high-speed camera and specialized software for assessments is required. Evaluations of the acoustic pressure produced by different small caliber weapons were achived using Bruel & Kjaer microphone and sonometer placed at different distances of interest from the barrel. The A frequency curve, based on contour courves of constant strength, was used in order to display the results obtained as the standard values indicated by the sonometer would not be identical to the perception of sound by the human ear. Determinations to evaluate the flame at the muzzle were also conducted.