摘要
针对自动步枪在水下射击时活塞运动产生冲击力的问题,对活塞运动规律进行研究。分别建立水下射击时弹丸活塞运动模型和水流对活塞冲击速度的计算模型,对活塞的运动条件进行分析,确定在子弹的推动下水流速度的大小。研究结果表明:对于5.8 mm水陆两栖步枪,当弹丸运动至导气位置的速度大于360.25 m/s时,活塞才会发生运动,该研究可用于水下射击条件下气动步枪自动机的动态分析。
Aiming at the impact force caused by piston movement of automatic rifle during underwater shooting,research on piston movement law.Separately establish piston movement model during underwater shooting and calculation model of water flow to piston impact velocity,analyze piston movement condition,ascertain water flow velocity under projectile push.The research results show that:for the 5.8 mm amphibious rifle,the piston will move only when the velocity of the projectile to the air guiding position is greater than 360.25 m/s.The results of this paper can be used for the dynamic analysis of the automatic mechanism of pneumatic rifle under the condition of underwater shooting.
作者
于鑫
魏平
Yu Xin;Wei Ping(Institute of Weapons Engineering,Naval University of Engineering,Wuhan 430033,China;Ordnance Officer School,Army Engineering University,Wuhan 430075,China)
出处
《兵工自动化》
2021年第7期17-20,共4页
Ordnance Industry Automation
关键词
水下步枪
活塞
自动步枪
流体动力学
underwater rifle
piston
automatic rifle
hydrodynamics
作者简介
于鑫(1977-),男,吉林人,硕士,从事兵器工程专业研究。E-mail:Yx2150@qq.com。
