Abstract
This article presents a method to establish the dynamic model of the Shooter-weapon system when firing based on Lagrange’s theorem and the theory of multibody system dynamics, in which the influence of the human body was taken into account. In the dynamic model, the influence of the gunner is solved by using elastic-damping links in the x, y and z axes. The dynamic model is created for a portable gas-operated submachine gun and contains three solids with seven degrees of freedom. The 7.62 mm AKM submachine gun has been used for the model simulation and experimental verification. The dynamic simulation was conducted and then the results were compared with the corresponding experimental data. The model simulation results are very close to the experimental results. This study aims to survey the influence of various parameters on gun stability in the shooting. It is possible to apply these results to portable automatic guns.
Highlights
Studies on the oscillation of the mechanical Shooter-weapon system when shooting play an important role since it is essential to analyze gun stability impact on shooting
The theoretical part creates a spatial model of the dynamics of a multibody system using the Lagrange movement equations method, which considers the influence of the human body
The paper presents a method for determining some parameters for evaluating the firing stability of the Shooter-weapon system when firing by modeling method based on the theory of multibody system dynamics and experimental methods
Summary
Studies on the oscillation of the mechanical Shooter-weapon system when shooting play an important role since it is essential to analyze gun stability impact on shooting. The theoretical part creates a spatial model of the dynamics of a multibody system using the Lagrange movement equations method, which considers the influence of the human body. Using this model to investigate the Shooter-weapon system gives us a more comprehensive view of the system stability in the relationship between displacement, external load, and boundary link. These results are essentialfor the process of development, innovation, new designs, and solutions to improve gun firing accuracy
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