喷管喉部面积对膨胀波火炮内弹道影响分析  

Research on Internal Ballistics of Blasting Disc Rarefaction Wave Gun

作　　者：郭张霞[1] 李闯[1] 罗鹏 范光明 李保在 GUO Zhang-xia;LI Chuang;LUO Peng;FAN Guang-ming;LI Bao-zai(North University of China,School of Mechatronics,Taiyuan 030051,China;Air Force Logistic University,Xuzhou 221000,China;Shanxi North Machine-Building Co.Ltd.,Taiyuan 030009,China)

机构地区：[1]中北大学机电工程学院,太原030051 [2]空军勤务学院,江苏徐州221000 [3]山西北方机械制造有限责任公司,太原030009

出　　处：《火力与指挥控制》2020年第10期127-131,共5页Fire Control & Command Control

基　　金：山西省自然科学基金资助项目(201801D121025)。

摘　　要：膨胀波火炮内弹道参数变化规律较常规火炮复杂,后喷气体对膛内气流影响较大,而影响气体后喷的关键因素是喷管喉部面积。针对爆破片式膨胀波火炮内弹道模型进行研究,利用爆破片式膨胀波火炮内弹道方程组和流量方程,分析喷管喉部面积对内弹道参数、流量和弹丸初速的影响。结果表明:喷管喉部面积越大,流量越大,弹丸初速越小;喷管喉部面积对流量影响较大,对弹丸初速影响较小。该结果对膨胀波火炮喷管设计和减后坐效率计算提供一定依据。The variation law of interior ballistic parameters of rarefaction wave gun is more complex than that of conventional gun.The area of nozzle throat is the key factor to influence the flow field in the chamber.Aiming at the interior ballistic model of blasting disc rarefaction wave gun,the influence of nozzle throat area on interior ballistic parameters,flow rate and initial velocity of projectile are analyzed by using the interior ballistic equations and flow equations of blasting disc rarefaction wave gun.The results show that the larger the throat area of the nozzle,the larger the flow rate and the smaller the initial velocity of the projectile.The throat area of nozzle has a greater influence on the flow rate and a smaller influence on the initial velocity of projectile.The results provide a basis for the design of rarefaction wave nozzle and the calculation of recoil reduction efficiency.

关 键 词：爆破片 膨胀波火炮 内弹道 喷管喉部面积 

分 类 号：TJ302[兵器科学与技术—火炮、自动武器与弹药工程]