中口径埋头弹火炮发射动力学建模及仿真  

Research and Simulation on Firing Dynamics of Medium Cased Telescoped Ammunition Weapon System

作　　者：张世明 许管利[1] 刘丹 郭竞尧[1] ZHANG Shiming;XU Guanli;LIU Dan;GUO Jingyao(Northwest Institute of Mechanical&Electrical Engineering,Xianyang 712099,China)

机构地区：[1]西北机电工程研究所,陕西咸阳712099

出　　处：《兵器装备工程学报》2021年第10期72-78,共7页Journal of Ordnance Equipment Engineering

基　　金：国防科技创新项目(18-H863-03-ZT-004-016-05);国家自然科学基金项目(52001261)。

摘　　要：为了研究埋头弹火炮武器系统在射击过程中的动力学特性以及炮口动态响应对射击密集度的影响,在ABAQUS软件中建立了中口径埋头弹火炮的非线性动力学有限元模型。并且依据埋头弹火炮的结构特点定义接触和施加载荷,通过仿真获得了后坐特征曲线和炮口动态响应曲线。对炮口响应进行换算求解出理论射击密集度,理论射击密集度能够满足技术指标要求,说明火炮结构设计可行。后续通过射击试验,并且将仿真结果与试验数据进行对比,高低方向密集度误差小于7.6%,方位方向密集度误差小于6.8%。所建立的非线性动力学有限元模型能够满足工程设计需求,可以为中口径埋头弹火炮武器系统射击密集度优化提供参考。Due to its unique advantages,the cased telescoped ammunition weapon system has attracted wide attention.In order to study its dynamic characteristics and the important influence for firing dispersion of muzzle response during launching,a nonlinear dynamic finite element model of medium cased telescoped ammunition weapon system was established in software ABAQUS.According to the structural characteristics,contacts and loads were applied to the cased telescoped ammunition weapon system.The recoil characteristic curves and muzzle vibration response curves were obtained respectively through simulation.The firing dispersion was calculated based on the results of muzzle response.The theoretical firing dispersion could well meet the requirements of performance indexes,which indicates that the design of weapon system is feasible.Through the comparison and analysis,the numerical results are closely matched with the experimental measurement results.The results show that the vertical angle error of firing dispersion is less than 7.6%and the horizontal angle error is less than 6.8%.Therefore,the results verify that the correctness and feasibility of this model and can meet the requirements of the engineering design.What’s more,it is able to provide theory and practice reference for firing dispersion optimization of medium cased telescoped ammunition weapon system.

关 键 词：后坐特征 炮口响应 动力学 埋头弹 

分 类 号：TJ818[兵器科学与技术—武器系统与运用工程]