Acoustic pressure and flame generation determinations in case of mechanical and gas-dynamic processes for small caliber weapons

7th Modern Technologies in Industrial Engineering

工业技术（总论）

Zvincu, N.-D.^1 ; Mandache-Dodoiu, A.-D.^1 ; Nistoran, G.-D.^1 ; Haller, L.O.^2

Ferdinand i Military Technical Academy of Bucharest, Center of Excellence in Integrated Weapon Systems and Engineering, 39-49 George Cosbuc Ave., Bucharest

050141, Romania^1

Ferdinand i Military Technical Academy of Bucharest, Department of Weapon Systems Engineering and Mechatronics, 39-49 George Cosbuc Ave., Bucharest

050141, Romania^2

关键词: Acoustic pressures;    Frequency curve;    Gas dynamic process;    Safety distances;    Safety measures;    Specialized software;    Standard values;    Weapons systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/591/1/012073/pdf
DOI  :  10.1088/1757-899X/591/1/012073

学科分类：工业工程学

来源: IOP

【 摘 要 】

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.