枪管进水对射击的影响分析  

Analysis of the Influence of the Inlet of the Barrel on the Shooting

作　　者：孙朋 解志坚[1] 杨臻[1] 蓝维彬 SUN Peng;XIE Zhijian;YANG Zhen;LAN Wenbin(School of Mechanical and Electrical Engineering,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学机电工程学院,太原030051

出　　处：《兵器装备工程学报》2018年第11期68-72,共5页Journal of Ordnance Equipment Engineering

摘　　要：针对某小口径步枪枪管在进水后膛压急剧上升而导致枪膛发生变形甚至炸膛的问题,利用Abaqus软件平台建立弹膛的仿真有限元模型,基于非线性热力学理论,采用直接耦合的方法,使用随温度变化的材料热物性参数,对射击过程中在热应力及火药燃气压力共同作用下弹膛的热变形进行了仿真计算。得出了身管弹膛部分在膛压剧烈变化下容易发生较大的热变形的结论,为不同区域环境下进行射击调整提供理论依据。In order to solve the problem that the barrel of a small caliber rifle barrel rises sharply in the bore pressure and causes the barrel to deform and even fry the bore,the simulation finite element model of the bore was established by using the Abaqus software platform.Based on the nonlinear thermodynamics theory,the direct coupling method was used to use the thermal physical parameters of the material with the variation of temperature.The thermal deformation of the chamber under the combined action of thermal stress and propellant gas pressure was simulated.The conclusion was drawn that the barrel part of the barrel was prone to large thermal deformation under the violent change of the pressure of the bore.It provides a theoretical basis for the adjustment of shooting in different regions.

关 键 词：枪管 进水 膛压 热变形 

分 类 号：TJ203[兵器科学与技术—武器系统与运用工程]