Biomechanical analysis of the shooter-weapon system oscillation

Dung, Nguyen Thai; Van, Dung Nguyen; Van, Phuc Ta; Duc, Linh Do

doi:10.1109/miltechs.2017.7988729

Cited by 12 publications

(5 citation statements)

References 3 publications

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“…8. One of the parameters used as a basis for evaluating the indicators to ensure the accuracy, ability to work safely and reliably of the gun is the oscillation of the muzzle of the barrel when firing at different firing angles in the vertical plane and horizontal plane [3,4,6,25]. Another way, to ensure safety during testing, the gun is fired at elevating rotation angle is zero.…”

Section: Problem Solutionmentioning

confidence: 99%

“…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].…”

Section: Introductionmentioning

confidence: 99%

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

Doan¹,

Vo²,

Quang³

et al. 2023

Applied Engineering Letters

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In this paper, we propose a new twin-barrel gun model for calculating firing on the elastic ground to study the effects of structural parameters on the weapon's performance. This paper intends to provide a theoretical basis and establish a specific model of twin-barrel gun, to build a system of differential equations of vibration, and to determine the rules of vibration of the gun when firing on the elastic ground. The method is used to establish a model of two sets of automatic firing systems by dynamics of a multi-body system. The results of the calculation revealed the instructional significance for improving the vibration performance and increasing the firing accuracy. Experiments were tested out on a 37 mm twin anti-aircraft gun, type 65. The results of the theoretical mathematic model provide a good correlation to experimental data. The maximum amplitude deviation on the horizontal plane does not exceed 8.1%, while in the vertical plane does not exceed 6.4%. The outputs can be used for validation of a dynamic model of a weapon system while firing on the elastic ground, and the procedure can be used as an example of a practical technique and methodology for other weapon systems.

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Section: Problem Solutionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Doan¹,

Vo²,

Quang³

et al. 2023

Applied Engineering Letters

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show abstract

“…The values of ks, bs, kt, and bt are determined according to the documents [1] and [7]. • The gravity of the bodies (Pv): Force of the gravity in v-th body is placed at the center, is perpendicular to the horizontal plane OXY and the direction is vertically downwards.…”

Section: Fig 2 Forces Acting On the Weapon Casing Of Gas-operated Weaponmentioning

confidence: 99%

“…where T -the total kinetic energy of the whole mechanical system; qj -the generalized coordinate; Qj -the generalized force corresponding to the generalized coordinates qj. A detailed explanation of the total kinetic energy of the whole mechanical system and generalized force can be obtained from [7] and [8].…”

Section: Establishes the System Of Differential Equations For Mechani...mentioning

confidence: 99%

Effect of Some Structural Parameters on Firing Stability of Shooter-Weapon System

Macko

2021

AiMT

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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.

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“…For weapons, the muzzle device is considered an important component in the weapon system, it is diverse, with many types with different uses such as muzzle brakes, flash hiders, muzzle deflectors, recoil intensifiers, silencers, etc. At the same time, some muzzle devices affect the gun's stability during firing [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Study of the Effect of Some Muzzle Device Types on the Firing Force and Firing Impulse

Vo Van,

Nguyen Duy,

Nguyen Minh

2023

AAES

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In this paper, a mathematical model is used to determine the force and impulse of the weapon's firing. The force and impulse of the weapon's firing are determined during the whole firing process, which consists of two stages: the stage projectile moving inside the barrel and the stage at the final action stage of combustion gas. The input parameters of the UK-59 machine gun in the Czech Republic were selected to verify the mathematical model. The results of the article are the law of combustion gas pressure in the barrel, the law of combustion gas pressure in the gas chamber, and the law of force and impulse of the shot corresponding to different types of muzzle devices. This result is consistent with the experimental results presented in the document [32], the error is less than 3%. Besides, the article also analyzes the influence of some muzzle device types on the firing force and firing impulse. The method of numerical integration has been applied to solve the problem using Matlab software. The research results of the article are a reliable theoretical basis for determining the firing forces, serving the problem of designing the mount as well as the firing stability of the weapon when firing. This is the basis for the optimal selection and design of the muzzle device used in the weapon.

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Biomechanical analysis of the shooter-weapon system oscillation

Cited by 12 publications

References 3 publications

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

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

Effect of Some Structural Parameters on Firing Stability of Shooter-Weapon System

Study of the Effect of Some Muzzle Device Types on the Firing Force and Firing Impulse

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