The effect of muzzle devices on the distribution of muzzle waves when firing an assault rifle

• Autorzy: Nguyen Dung Van , Bui Viet Quy

Identyfikatory

DOI

10.24425/ame.2024.151332

• Języki publikacji: EN

Abstrakty

EN

When firing an infantry gun, the muzzle wave will spread into the surrounding space, which will cause harmful mechanical effects to the shooter and military personnel near the weapon. The impact of the muzzle wave on the shooter is increased when a muzzle device is placed on the barrel of the gun. Therefore, weapon designers desire to improve the efficiency of muzzle devices and limit the mechanical impact of the muzzle wave on the shooter’s hearing organs. This article discusses a thermogasdynamic method for determining the changes in excess pressure distribution of the muzzle wave and sound pressure level at the shooter’s ear position. The calculations focus on shooting an assault rifle with three different types of muzzle devices, each with varying features and efficiencies, using 7.62 × 39 mm ammunition. The results indicate that the isobaric curve of the muzzle wave shifts backward when a muzzle device is used. This shift can lead to an increase of up to 6 dB in the sound pressure level near the gunner’s ear. The results of the mathematical models are consistent with the data from the experiments. The article provides a basis for a comprehensive quantitative assessment of the effectiveness of using muzzle devices.

Słowa kluczowe

EN

muzzle wave; muzzle flow; muzzle device; acoustic impact; final effect period; assault; rifle

PL

fala wylotowa; przepływ wylotowy; urządzenie wylotowe; uderzenie akustyczne; okres efektu końcowego; karabin szturmowy

• Wydawca: Komitet Budowy Maszyn PAN
• Czasopismo: Archive of Mechanical Engineering
• Rocznik: 2024
• Tom: LXXI, nr 3
• Strony: 445--466
• Opis fizyczny: Bibliogr. 30 poz., rys., tab.

Twórcy

autor

Nguyen Dung Van

• Faculty of Special Equipment, Le Quy Don Technical University, Hanoi, Vietnam

• https://orcid.org/0000-0002-2810-1204

autor

Bui Viet Quy

• Faculty of Special Equipment, Le Quy Don Technical University, Hanoi, Vietnam

• https://orcid.org/0009-0008-4844-124X

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025)