Modal Analysis of Barrels for Assault Rifles
Journal Title: Problemy Mechatroniki. Uzbrojenie, lotnictwo, inżynieria bezpieczeństwa - Year 2012, Vol 3, Issue 2
Abstract
This paper deals with modal analysis of barrels for assault rifles. The barrels are modeled as 3-D objects. Three different barrels for analysis were used. First barrel is fully cylindrical and served as comparison to another two barrels, the design of which is quite close to the real barrels for 5.56 mm and 7.62 mm calibers. The calculation of natural frequencies and corresponding mode shapes was performed using the Finite Elements Method, using the LS-DYNA software system. Modal analysis was solved using the iterative Lanczos method. All three barrels are compared from various viewpoints. In Tables 1-3 the natural frequencies for these barrels and their corresponding mode shapes with modification in gripping and also with application muzzle compensator for two real barrels are listed. Various sizes of natural frequencies versus corresponding modes with modification in gripping and applied muzzle compensator for these barrels are shown on Figures from 4-9.
Authors and Affiliations
Peter LISÝ, Mario ŠTIAVNICKÝ
Keywords
Related Articles
- EP ID EP62953
- DOI -
- Views 100
- Downloads 0
Koncepcja zapalnika uderzeniowego do amunicji odłamkowo-burzącej wystrzeliwanej ze 120 mm samobieżnego moździerza RAK
Artykuł zawiera koncepcję nowego zapalnika uderzeniowego do pocisków odłamkowo-burzących wystrzeliwanych ze 120 mm samobieżnego moździerza RAK. Przedstawiono budowę i zasadę działania podstawowych zespołów zapalnika.
Application of 3D Scanning Technology for Evaluation of Virtual Model of Gun Geometry
The paper presents the results of reconstruction of selected gun elements with application of 3D scanning technology. Algorithm of under investigation process, the way of preparing object for scanning and measuring proce...
Koncepcja konstrukcji dwustopniowego naddźwiękowego pocisku rakietowego
Zaawansowane obliczenia z dziedziny balistyki zewnętrznej i aerodynamiki mozna przeprowadzić, wykorzystując program komercyjny PRODAS, który jest specjalizowanym narzędziem do wspomagania projektowania pocisków strzeleck...
Simulation of Steel Armour Penetration Using the Johnson-Cook Model
The numerical simulations were carried out of penetration of 12.7 mm armour piercing projectile into the ARMOX 500 steel armour with the use of the AUTODYN 2D software program applying axis symmetry. The calculations wer...
The Suitability of Using C30E Steel Materials for Damping the Effects of Improvised Explosive Devices
There are nowadays different kinds of homogenous steel armours (e.g. different kinds of steel sheets Armox, Russian armours including 2P, 43 PSM etc.) or aramide fibres which can be used alone or in composites. This pape...