Design Optimisation of Muzzle Brake for Sniper Rifle

Mohamed Sherif; Ossama Ramy Abdelsalam; Mohamed Aboul

doi:10.14429/dsj.68.12754

Mohamed Sherif Weapons and Ammunition Department, Military Technical College, Cairo
Ossama Ramy Abdelsalam Weapons and Ammunition Department, Military Technical College, Cairo
Mohamed Aboul Weapons and Ammunition Department, Military Technical College, Cairo

DOI: https://doi.org/10.14429/dsj.68.12754

Keywords: Muzzle brake, Recoil force, Efficiency, Sniper rifle

Abstract

Muzzle brakes (MBs) have a great effect on reducing the recoil force of weapons during firing. In this paper, optimum MB efficiency, MB force and recoil force for (12,7 x 99 mm) sniper rifle have been studied. The objective is to obtain the optimum area of side openings, inclination angle and number of chambers for the MB in order to increase the MB efficiency and MB force and thereby to decrease their coil force of the weapon. An analytical model for calculating MB efficiency, MB force and weapon recoil force for MBs of two, three and four chambers has been established. This Model is then utilised in combination with design of experiment (DOE) and Response Surface Method (RSM) statistical techniques to develop a smooth response function which can be efficiently used in optimisation formulation. Finally, multi objectives generic algorithm (MOGA) optimisation method has been employed to find the optimum MB design parameters. The optimisation results show that the three or four chambers MBs have no significant effect on reducing the weapon recoil force compared with the two chamber MB for this sniper rifle.

Author Biographies

Mohamed Sherif, Weapons and Ammunition Department, Military Technical College, Cairo

Mr M. Sherif Said is senior candidate, in Mechanical
Engineering, Weapons and Ammunition Department, Military Technical College, Cairo, Egypt. His research and study interests are: Weapon design, Penetration of Armors.

Ossama Ramy Abdelsalam, Weapons and Ammunition Department, Military Technical College, Cairo

Dr Ossama R. Abdelsalam received his BS, MSc, and PhD in Mechanical Engineering from Military Technical College, Cairo, Egypt and Concordia University in Canada, respectively. He is currently working as an Assistant Professor in Weapons and Ammunition Department in Military Technical College, Cairo, Egypt. His research interests are Thermo-mechanical stresses and fatigue, impact mechanics, fracture mechanics, finite element modelling, weapon design and plasticity.

Mohamed Aboul, Weapons and Ammunition Department, Military Technical College, Cairo

Dr Mohamed H. Aboul received his BS in Mechanical Engineering from Military Technical College, Cairo, Egypt, and MSc from Vaaz Academy, Brno, Československá and PhD from Ensam, Paris, France respectively. He is currently working as an Associate Professor in Weapons and Ammunition Department in Military Technical College, Cairo, Egypt. His research interests are gun mechanics and design, solid mechanics, and fluid dynamics.