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

Authors

  • Vo Van Bien Department of Weapons, Le Quy Don Technical University, Hanoi, Viet Nam
  • Ta Van Phuc Department of Weapons, Le Quy Don Technical University, Hanoi, Viet Nam
  • Martin Macko Department of Weapons and Ammunition, the University of Defence in Brno, Czech Republic 0000-0002-3896-0803

DOI:

https://doi.org/10.3849/aimt.01487

Keywords:

shooter-weapon system, firing stability, Lagrange equation, automatic weapon, dynamics, the 7.62 mm AKM

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.

References

UONG, S.Q. Study of Possibilities of Improving the Accuracy of Portable Automat-ic Weapons (in Vietnamese) [PhD Thesis]. Hanoi: Military Technical Academy, 2009.

LE, V.T. Study on the Oscillation of Handle Automatic Weapons when Firing and Analysis of Parameters Affecting the Weapon’s Accuracy (in Vietnamese) [PhD Thesis]. Hanoi: Military Technical Academy, 1994.

BALLA, J., M. HAVLICEK, L. JEDLICKA, Z. KRIST and F. RACEK. Dynamics of Automatic Weapon Mounted on the Tripod [online]. In: Proceedings of the 12th WSEAS International Conference on Mathematical and Computational Methods in Science and Engineering (MACMESE’ 10). Algarve, 2010, pp. 122-127 [viewed 2020-09-21]. Avialable from: http://www.wseas.us/e-library/conferences/2010/Faro/MACMESE/MACMESE-19.pdf

PROCHAZKA, S. and M. NOVAK. Effect of Inertia Forces on Function of Auto-matic Weapon [online]. Advances in Military Technology, 2008, 3(2), pp. 48-54 [viewed 2020-08-21]. Available from: http://aimt.unob.cz/articles/08_02/08_02%20(6).pdf

BALLA, J. Dynamics of Mounted Automatic Cannon on Track Vehicle [online]. International Journal of Mathematical Models and Methods in Applied Sciences, 2011, 5(3), pp. 423-432 [viewed 2020-08-216]. Available from: https://www.naun.org/main/NAUN/ijmmas/19-1152.pdf

BALLA, J. Contribution to Determining Load Generated by Shooting from Auto-matic Weapons. In: International Conference on Military Technologies 2019. Brno: IEEE, 2019. DOI 10.1109/MILTECHS.2019.8870116.

NGUYEN, T.D., D.V. NGUYEN, P.V. TA and L.D. DO. Biomechanical Analysis of the Shooter-Weapon System Oscillation. In: International Conference on Military Technologies 2017. Brno: IEEE, 2017. DOI 10.1109/MILTECHS.2017.7988729.

AHMED, A.S. Dynamics of Multibody Systems. 4th ed. Chicago: University of Ili-nois, 2013. ISBN 978-1-107-33721-6.

PHAM, H.C. Dynamics of an Automatic Firing Gun (in Vietnamese). Hanoi: Mili-tary Technical Academy, 2002.

BALLA, J., Z. KRIST and I.C. LE. Experimental Study of Turret-Mounted Auto-matic Weapon Vibrations. International Journal of Mechanics, 2015, 9(1), pp.16-25. ISSN 1998-4448.

BALLA, J., Z. KRIST, F. RACEK, P. MELSA, V. NEUMANN and I.C. LE. Analysis and Parameter Identification of Automatic Cannon Carriages. Defense Science Journal, 2018, 68(6), pp. 525-532. DOI 10.14429/dsj.68.12395.

KONCZAK, J., K. BROMMANN and K.T. KALVERAM. Identification of Time-Varying Stiffness, Damping, and Equilibrium Position in Human Forearm Move-ments. Motor Control, 1999, 3(4), pp. 394-413. DOI 10.1123/mcj.3.4.394.

NGUYEN, T.D., H.L. NGUYEN and T.T. BUI. Measure and Test Weapons (in Viet-namese). Hanoi: Military Technical Academy, 2007.

VITEK, R. Analyses of the Measurement Accuracy of the Optical Light Gates. In: International Conference on Military Technologies 2019. Brno: IEEE, 2019. DOI 10.1109/MILTECHS.2019.8870114.

VO, V.B., S. BEER, S.T. NGO, P.D. NGUYEN. The Effect of the Nozzle Ultimate Section Diameter on Interior Ballistics of HV-76 Trial Gun. In: International Con-ference on Military Technologies 2019. Brno: IEEE, 2019. DOI 10.1109/MILTECHS.2019.8870040.

Downloads

Published

02-07-2021

How to Cite

Bien, V. V., Phuc, T. V., & Macko, M. (2021). Effect of Some Structural Parameters on Firing Stability of Shooter-Weapon System. Advances in Military Technology, 16(2), 235–251. https://doi.org/10.3849/aimt.01487

Issue

Section

Research Paper

Categories