某火炮自动机高速机构的热-结构耦合效应仿真分析  

Analysis about Thermal-structure Coupling Effect of High Firing Rate Automatic Mechanism of a Gun

作　　者：戴涌[1,2] 钱林方[1] 吴晓金 徐亚栋[1] DAI Yong QIAN Lin-fang WU Xiao-jin XU Ya-dong(School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094,Jiangsu, China Product Research and Development Center,Chongqing Wangjiang Industry Co. , Ltd. , Chongqing 400071, China)

机构地区：[1]南京理工大学机械工程学院,江苏南京210094 [2]重庆望江工业有限公司军品研发中心,重庆400071

出　　处：《兵工学报》2016年第9期1738-1743,共6页Acta Armamentarii

基　　金：中国兵器装备集团公司"十二五"预先研究项目(JP606)

摘　　要：针对某高射速自动机在样机实弹射击时出现的周期性停射故障,应用热膨胀经典理论和有限元计算方法,对高射速自动机进行了热-结构耦合分析。结果表明:将结构尺寸作适当的调整,不仅能满足现阶段射速的要求,而且有进一步提高射速的空间。结构设计方案改进后的验证样机,经多轮实弹试验测试,没有出现周期性停射现象,故障得到解决。将热-结构耦合方法应用于工程实践,以期在解决类似故障和结构设计的分析方法上有所借鉴。The prototype of a high firing rate automatic mechanism of a gun has a periodic fire stop failure during firing. The classical thermal expansion theory and the finite element method are used for the thermal-structure coupling analysis of high firing rate automatic mechanism. The analysis results show that the size of its structure can be appropriately adjusted to meet the requirement of the current firing rate and further improve the rate of fire. The improved structural design of demonstration prototype has non period- ic fire stop phenomenon after several rounds of live ammunition tests. Thermal-structure coupling method can be used to solve similar failures in engineering practice.

关 键 词：兵器科学与技术 自动机 有限元 热-结构耦合 

分 类 号：TJ303.3[兵器科学与技术—火炮、自动武器与弹药工程]