不同射击工况下弹丸膛内运动规律研究  

Research on movement law of projectile under different shooting conditions

作　　者：邹利波[1] ZOU Libo(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学机械工程学院,江苏南京290014

出　　处：《南昌工程学院学报》2018年第6期106-109,共4页Journal of Nanchang Institute of Technology

基　　金：江苏省自然科学基金青年项目(BK20170837)

摘　　要：在有限元理论方法的基础上,建立了弹炮耦合动力学有限元模型,对弹丸在不同工况下(低温膛压、高温膛压和高温膛压且身管磨损)进行数值计算,获得了弹丸在膛内时期运动的速度、加速度和弹丸前定心部受力情况。研究结果表明,在高温和低温膛压正常身管下,弹丸径向和横向速度较大,而在磨损身管内,弹丸横向和径向加速度波动范较大,研究结果为弹炮匹配性设计提供一定的指导意义。In view of the safety problem of a certain caliber gun in the process of firing a certain projectile,it is significant to study the movement law in the projectile chamber under different shooting conditions.On the basis of the finite element method,the coupling dynamic finite element model of the projectile was established,and the numerical calculation was carried out for the projectile under different working conditions(low temperature bore pressure,high temperature bore pressure and high temperature bore pressure and barrel wear).The results show that the projectile’s radial and transverse velocity is larger under the normal barrel of high-temperature and low-temperature bore pressure,while the transverse and radial acceleration fluctuation is larger in the worn barrel.

关 键 词：磨损身管 弹丸运动 弹炮匹配 有限元 

分 类 号：TJ301[兵器科学与技术—火炮、自动武器与弹药工程]