Modal Analysis of Medium Calibre Barrels

• Autorzy: Lisy Peter , Bridik Lukáš

Identyfikatory

DOI

10.5604/01.3001.0013.2113

• Języki publikacji: EN

Abstrakty

EN

The paper deals with modal analysis of the two different medium calibre barrel weapons. At present time PC software which are based on FEM modal analysis enable not only create a new design but also check old design how be up to standard on the fire accuracy. Also at this time is big boom to make new armour personal carriers which are equipped with the medium weapon calibre systems. Many of them use standard design of bedding the barrel to the weapon case, however also they are created in new weapon design. The modal analysis is powerful method to describe their vibration properties which have the cardinal influence on the accuracy of fire. The barrels were modelled as 3-D objects with next configuration with aim to obtain right results and their mutual comparison. Figure 1-3 show design of the solved barrels. Modal analysis was performed by LS-DYNA software using iterative Lanczos method. In Tables 1-5, the natural frequencies for these barrels and their modifications and their corresponding own shapes are listed. Next Figures 4, 7-10, 12 show the courses natural frequencies versus modes. In Figure 11 are shown the modal shapes of the modified cylindrical weapon barrel with the armature.

Słowa kluczowe

EN

natural frequency; modal shape; weapon barrel; finite element analysis

• Wydawca: Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa
• Rocznik: 2019
• Tom: Vol. 10, Nr 2 (36)
• Strony: 9--22
• Opis fizyczny: Bibliogr. 6 poz., rys., wykr., tab.

Twórcy

autor

Lisy Peter

• Armed Forces Academy of Gen. M. R. Štefánik, Department of Mechanical Engineering, Liptovsky Mikulas, Slovak Republic

autor

Bridik Lukáš

• Armed Forces Academy of Gen. M. R. Štefánik, Department of Mechanical Engineering, Liptovsky Mikulas, Slovak Republic

Bibliografia

• [1] Gimm In Hak, Ki Up Cha, Chang Ki Cho. 2012. “Characterization of gun barrel vibrations of during firing based on shock response analysis and short - time Fourier transform”. Journal of Mechanical Science and Technology, 26 (5) : 1463-1470.
• [2] Yin Junhui, Jian Zheng, Hongzhi Teng, Feng Li. 2009. Modelling and Simulation of Gun Barrel's Lateral Vibration. In Proceedings of the International Conference on Computational Intelligence and Software Engineering, CiSE 2009. December 11-13, 2009, Wuhan, China. (DOI 10.1109/CISE.2009.5363267).
• [3] Liu R.G., S.S. Quek. 2003. The Finite Element Method: A Practical Course. MPG Books Ltd, Bodmin, Cornwall.
• [4] Bathe Klaus Jürgen. 1996. Finite Element Procedures. USA: Pretince-Hall, Inc.
• [5] LS-DYNA. 2013. Keyword User´s Manual, Version 971. Livermore Software Technology Corporation.
• [6] Lisý Peter, Peter Perun. 2015. “Natural Frequencies of Small Cylinders and Tubes”. Problemy mechatroniki. Uzbrojenie, lotnictwo, inżynieria bezpieczeństwa / Problems of Mechatronics. Armament, Aviation, Safety Engineering 6 (2) : 7-20.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).