Heat Transfer Calculations in Barrel Cover of 35 mm Naval Armament System Gun
Journal Title: Problemy Mechatroniki. Uzbrojenie, lotnictwo, inżynieria bezpieczeństwa - Year 2018, Vol 9, Issue 3
Abstract
This paper presents the results of numerical simulations of non-stationary heat transfer in a 35 mm anti-air gun barrel cover made of composite materials. The cover protects the gun against weather conditions, including sea water effects, and serves as a protection against mechanical damage. It was assumed that heat coercion in this problem will be the heat condition reached by the material of the barrel with the cover removed, after firing three bursts of 7 shells each, 120 s after opening fire. It was assumed, that in the second 120, the gun crew installs the gun cover and at this point, the heating process begins, followed by cooling of the cover material. The problem of initial and boundary value in the barrel with a cover installed system was solved as a three-dimensional initial and boundary problem. The initial and boundary value model adopted for the coverless barrel and the calculation results for the first burst of seven shells was presented in paper [7]. To obtain the heat condition of the barrel in the second 120, it was necessary to perform calculations for the second and third bursts, and for the barrel cooling processes starting in the second 120. The calculations were performed with a finite element method in the COSMOS/M software [9]. The cover material temperature values obtained during the numerical simulation are well below the temperature of 387K, which could form the upper limit of the composite applicability temperature range.<br/><br/>
Authors and Affiliations
Zbigniew LECIEJEWSKI, Piotr KONIORCZYK, Andrzej DĘBSKI, Marek PREISKORN, Janusz ZMYWACZYK
Keywords
Related Articles
- EP ID EP365770
- DOI 10.5604/01.3001.0012.2739
- Views 58
- Downloads 0
Karabinek reprezentacyjny MSBS-5,56R systemu MSBS-5,56
W dniu 3 maja 2016 r. na Placu Zamkowym w Warszawie, podczas uroczystości państwowych z okazji 225. rocznicy uchwalenia Konstytucji 3 Maja – w obecności Prezydenta RP, najwyższych władz Rzeczpospolitej oraz licznie zebra...
Numerical-Experimental Evaluation of the Armour Protection Capabilities
This paper presents a numerical and experimental study of a composite add-on armour panel used for protection of lightweight armoured vehicles impacted by the 7.62 mm API (Armour Piercing Incendiary) BZ projectile (2nd l...
Modelowanie dynamiki oraz identyfikacja aerodynamiczna zmodyfikowanego pocisku moździerzowego kalibru 74 mm
Przedmiotem badań jest pocisk moździerzowy kalibru 74 mm. Badania zostały wykonane na dostępnej kopii pocisku. Zbadano rozkład mas, doświadczalnie wyznaczono momenty bezwładności pocisku, w tunelu aerodynamicznym Zakładu...
Hot Extrusion of Components of Ammunition from a Square or Round Bar
The publication contains information on the carried out by Materials Technology Institute at Poznań University of Technology and Special Production Plant at Bolechowo. Presented works concern technology of artillery ammu...
Experimental and Finite Element Studies on Man-Rifle Reaction Force
The study concerns a man-weapon interaction during a gunshot. The recoil force measurements obtained for the Kalashnikov automatic rifle are presented and analyzed. The influence of shooter’s mass, height and position is...