10.05.2023 change 10.05.2023

Gdańsk University of Technology student designs muzzle device for sniper rifle

Credit: Adobe Stock Credit: Adobe Stock

Gdańsk University of Technology of Mechanical Engineering and Ship Technology, has designed a muzzle device for a sniper rifle that will reduce the weapon's recoil. This is very important for the shooter, because the recoil negatively affects the control of the weapon, the press office of the Gdańsk University of Technology reports.

According to the press release, research on the device formed the basis of the master's thesis, for which the young scientist was awarded the Diploma of the Year. 'The muzzle device is divided into reaction, action and reaction-action parts. The first directs the gases backwards. These cause the weapon to stop moving backwards and reduce the felt recoil. The second is connected to the dynamic pressure - the pressure hits the brake walls and drives the weapon forward', we read in the release.

'The muzzle brake is a gas-dynamic device mounted at the end of the barrel. It reduces the perceived recoil of a firearm - this is very important for the shooter, because the recoil negatively affects the control of the weapon. This translates into accuracy and comfort of shooting, it can even cause injury to the shooter', said the author of the project, Kornel Piłat, quoted in the release.

According to the release, 'The idea for the +Project of a muzzle device for a sniper rifle+ came from passion - Kornel Piłat. MSc, Eng. is a sports shooter. The aim of the project was to develop an innovative muzzle brake and its optimisation through theoretical and experimental analysis of selected muzzle device solutions. The graduate himself created a model of the geometry of the solution and compared it with those available on the market'.

'Using the Ansys Fluent flow analysis tool, I modelled one shot from different brake models. This allowed me to check what recoil force would act on the shooter with different types. I studied the pressure and temperature fields. Research has shown that in fact - this additional geometry works', adds Kornel Piłat.

The press office of the Gdańsk University of Technology reports that the project was tested in real conditions at the shooting range in Dąbrówka

'The analysis of the tested models was carried out using numerical calculations using the finite element method in the CFD environment. In the thesis, the graduate presented an analysis of the recoil and jump of barrelled small arms. He explained the causes of the recoil and jump phenomena and their impact on the weapon and the shooter. The thesis also presents various types of muzzle devices, their division and principle of operation', we read in the release.

'For each type of device, its diagram and advantages and disadvantages of use have been presented. The researcher analysed the discharge of powder gases, the process of creating shock waves and flashes of the shot for a barrel without muzzle devices. The flow of powder gases through the muzzle brake was also discussed. The work presents the process of creating models for CFD computer calculations', the press office reports.

The promoter of the master's thesis was Professor Jerzy Ejsmont from the Institute of Mechanics and Machine Design, Faculty of Mechanical Engineering and Ship Technology. (PAP)

author: Dariusz Sokolnik

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