Dynamic Analysis of a Vehicular-mounted Automatic Weapon–Planar Case

Abstract

This study analyses the dynamic behaviour of a machine gun mounted on a four-wheeled vehicle. The entire system comprises three parts: the gun, the flexible monopod, and the vehicle. The weapon has a multirigid-body mechanism and comprises a rigid receiver, a rigid bolt, a bullet, a buffer, and a recoil spring. The vehicle model features a rigid vehicle body, suspension springs, shock absorbers, and wheels. The finite element method is used to model the flexible monopod connecting the gun and the vehicle. This study combines a computer-aided analysis of rigid-body mechanisms with finite element analysis of a flexible structure to derive the total equations of motion, incorporating the Lagrange multiplier. The total equations of motion are solved with numerical integration to simulate the transient response of the whole system. This approach can easily resolve the problem of rigid-flexible coupling effect, and promote the function of the whole system in the engineering design phase.

A Study on Multi-Body Modeling and Vibration Analysis for Twin-Barrel Gun While Firing on Elastic Ground

“…It determines the firing accuracy and affects the firing efficiency of automatic guns, [1,2]. However, guns can be moved and vibrated while firing, which makes the firing angle of guns deflected after the projectile has left the barrel muzzle and reduced the probability of destroying the target, [3][4][5][6][7][8][9]. The larger the deflection of firing, the smaller finding the probability of destroying the target, [3,5].…”

Numerical Study of Modular 5.56 mm Standard Assault Rifle Referring to Dynamic Characteristics

“…It results in the fact that numerical simulations are widely used in the design process of the contemporary weaponry 2,[11][12][13][14][15][16] . To predict the dynamic response of the main elements of the reloading mechanism (e.g., slide, bolt, gas piston) under impact of powder charge deflagration gaseous products, two alternative numerical methods are used.…”

“…Moreover, in dynamic analysis, the masses of all elements and forces acting on mechanism need to be defined 17,18 . Literature studies lead to the conclusion that the presented numerical method (MBS) of computer simulations should be appropriate to solve the described problem 3,[11][12][13] . The first stage of preparation of the computer simulation consists of the process of developing the numerical model and specifying the initial boundary conditions.…”

Nonlinear Transient Finite Element Analysis for Rifle’s Power Transmission Mechanism with Structure Coupling Effects

“…Yang et al [4,5] simulated the muzzle disturbance of an automatic mortar during continuous firing. Sun et al [6][7][8][9] investigated the dynamic coupling effects of an automatic weapon system based on a flexible support structure, and used an exterior ballistic program and the Monte Carlo method to predict the impact point. Hou et al [10] evaluated the dynamic response of the ammunition swing device of a naval gun with various spring parameters and swing arm geometries.…”