某型突击车炮塔区域内膛口流场数值模拟分析  

Muzzle Flow Field Simulation of Assault Vehicle in Turret Areas

作　　者：韩小平[1] 赵富全[1] 张严严[1] 郝刚 

机构地区：[1]装甲兵工程学院兵器工程系,北京100072 [2]总装备部通用装备保障部,北京100720

出　　处：《火炮发射与控制学报》2015年第4期5-8,共4页Journal of Gun Launch & Control

摘　　要：针对某型突击车进行实弹射击后炮塔出现层裂现象,应用计算流体力学原理,采用动态层法动网格原理,建立包含炮塔区域在内的膛口流场数值模拟模型,通过与试验结果进行对比,验证数值模拟模型的可靠性,在此基础下,进一步计算分析得到膛口冲击波对炮塔前装甲板的作用时刻与力值;并以该结果作为输入,应用有限元分析方法得到炮塔的瞬态应力。结果表明,炮塔出现最大应力位置与实际炮塔发生层裂位置一致,膛口冲击波对炮塔的冲击作用是某型突击车炮塔发生层裂现象的主要因素之一,为后续综合分析炮塔发生层裂提供一定参考和数据支撑。In order to study the problem that the turret is flawed after the firing practice,the theory of computational fluid mechanics is applied.By using dynamic layer-based dynamic mesh method,the muzzle flow field numerical simulation model including the turret areas is established.The reliability of the numerical simulation model can be proven through the comparison of the simulation results and test results.Based on this,with further analysis through calculation,the action time and force that muzzle flow field attacks the front armor of turret can be worked out.The results can be used to put into the finite element model as an input for the availability of the transient stress of the turret.The experiment results show that the position of max stress of turret is the same as that of the turret flaws,and the function of muzzle shock wave is a very important factor in the phenomenon of the turret being flawed,which gives some reference and data support for the subsequent analysis of the reason for turret flawing.

关 键 词：突击车 炮塔 膛口流场 数值模拟 

分 类 号：TJ012.2[兵器科学与技术—兵器发射理论与技术]