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 72
- Downloads 0
Opracowanie technologii i badania balistyczne zespołu napędowego do 122 mm pocisku rakietowego o wydłużonym zasięgu
W artykule przedstawiono wyniki badań balistycznych silnika rakietowego demonstratora 122 mm pocisku rakietowego o wydłużonym zasięgu z heterogenicznym stałym paliwem rakietowym. Opracowana technologia wytwarzania materi...
Safety and Arming Devices in Fusing System
The requirements for safety and arming devices of fuses according to the binding norms were presented in this paper. Moreover the basic types of explosive train interrupting devices and new tendencies in the design of sa...
Analysis of Aerodynamic Characteristics of the Rocket-Target for the „Stinger” System
This paper presents an analysis of aerodynamic characteristics of the rocket-target for the final training of shooting at aerial targets by the „Stinger” system service staff. The governing equations of fluid dynamics ar...
Current Aircraft Rescue Systems
Each aircraft rescue system is designed to save the crew (pilot) in the event of an emergency over the entire range of flight using the ejector seat. This process is very difficult and complex, and this follows from the...
Natural Frequencies of Small Cylinders and Tubes
The paper deals with modal analysis of the cylinders and tubes and their mutual comparison. Nowadays, modal analysis is a powerful method of describing the vibration properties. When we know own shapes and natural freq...