ANALYSIS OF THE TEMPERATURE FIELD OF A LARGE-CALIBER MACHINE GUN TUBE BASED ON THERMAL-SOLID COUPLING
A thermal-solid coupling model and a FEA model of a certain kind of large-caliber machine gun tube are established. Using a material model related to temperature, the transient temperature field of the gun tube subjected to the action of high-frequency cyclic dynamic thermal pulse and dynamic pressure pulse is calculated, and the couple effect of thermal pulse and pressure pulse, and the distribution laws of the temperature field are analyzed. Compared to the experimental data, the computational results are satisfactory on the whole. The results are important for the studies of gun tube temperature, life-span prediction as well as the way to improve the lifespan of a gun tube. The model and the analysis method adopted here provide important references for gun tube design and improvement.
WUYong-hai XU Cheng
School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
国际会议
25th International Symposium on Ballistics(第25届国际弹道会议)
北京
英文
606-611
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）