某型小口径自动火炮抛壳动力学仿真分析  

Simulation Analysis of Certain Type Small Caliber Automatic Artillery Cartridge Case Extractor

作　　者：王扬 戴劲松[1] 王茂森[1] Wang Yang;Dai Jinsong;Wang Maosen(School of Mechanical Engineering,Nanjing University of Science&Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学机械工程学院,南京210094

出　　处：《兵工自动化》2018年第8期91-96,共6页Ordnance Industry Automation

摘　　要：针对某火炮抽壳机构的结构特点,建立预抽壳完成后抛壳机构的动力学仿真模型,通过采用向后差分法和相对坐标系运动方程进行动力学分析,讨论射频和射角改变时抛壳轨迹线的变化,得到了在射角固定、射频改变时药筒的运动轨迹,以及射频固定、射角改变时药筒的运动轨迹。结果表明:在同一射角下,随着射频的增加,药筒进入抛壳导槽的速度增加;在同一射频下随着射角的增大,抓壳臂给药筒在重力方向的分力越大,药筒到达抛壳导槽的时间越短。Aiming at the structure feature of certain type artillery cartridge case extractor,establish the dynamic simulation module of extractor after cartridge case extraction.Use backward difference method and related coordinate system motion equation to carry out dynamics analysis,discuss the change of ejection trace when the radio frequency and angle of fire are changed.Acquire the cartridge trace when the angle of fire is fixed and radio frequency is changed.And acquire the cartridge trace when the angle of fire is changed and radio frequency is fixed.The results show that,at the same angle of fire,the speed of cartridge case into ejection guidance barrel is accelerated when radio frequency is improved.At the same firing frequency,when the angle of fire is added,the more power of grab arm in gravity direction,the shorter time of cartridge on ejection barrel.

关 键 词：抛壳机构 仿真分析 药筒轨迹 重力方向 

分 类 号：TJ35[兵器科学与技术—火炮、自动武器与弹药工程]