THERMAL ANALYSES OF GUN BARREL UNDER DIFFERENT COOLING CONDITIONS
When firing, heat generated from the combustion of ammunition propellants and from the friction between the projectile driving band and the gun bore is transferred into the gun barrel. High temperature gradient is induced by the thermal energy input into the gun bore surface during the short heating period per round. Heat accumulates and causes the barrel to reach a high temperature, limited by the cook-off temperature of propellant during long burst firing. These adverse thermal damage problems can be diminished by barrel cooling method. The current finite element analysis is focused on the thermal effects during the firing for a 155 mm gun barrel under different cooling conditions. Multiple shot thermal modeling was performed for a sustained firing of 30 rounds at 10 rpm. The laboratory heat transfer experimental results were compared with the simulation. The results obtained provide insight into the development of barrel cooling system.
WU Bin YANG Lu-yi YU Jun-sheng CHEN Gang CHEN Jiong YU Xu-dong XIA Wei
New Star Research Institute of Applied Technology in Hefei, Hefei 230031, China School of Mechanical Engineering, South China University of Technology, Guangzhou 510640, China
国际会议
25th International Symposium on Ballistics(第25届国际弹道会议)
北京
英文
115-122
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）