小口径炮弹触发引信供弹及内弹道安全性研究  

Research on the safety of small-caliber shells on trigger fuse feeding and internal ballistics

作　　者：王逸飞 李世中[1] 娄文忠[2] 杨庭琪 何博 冯恒振 WANG Yifei;LI Shizhong;LOU Wenzhong;YANG Tingqi;HE Bo;FENG Hengzhen(School of Mechanical and Electrical Engineering,North University of China,Taiyuan 030051,China;School of Mechatronical Engineering,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]中北大学机电工程学院,太原030051 [2]北京理工大学机电学院,北京100081

出　　处：《兵器装备工程学报》2023年第12期32-39,共8页Journal of Ordnance Equipment Engineering

摘　　要：针对小口径炮弹机械触发引信安全性及可靠性的需求,开展小口径炮弹触发引信供弹及内弹道安全性研究。通过研究小口径炮弹触发引信作用原理,构建35 mm小口径炮弹引信模型,基于LS-DYNA动力学仿真软件进行供弹过程中小口径炮弹引信的有限元仿真,分析小口径炮弹引信在供弹过程中动力学响应特性。结合Simulink构建内弹道仿真模型,提取小口径炮弹发射时膛内环境参数,基于LS-DYNA进行内弹道发射过程中小口径炮弹引信的有限元仿真,分析引信在膛内运动时的动力学响应特性。研究发现:35 mm小口径炮弹引信在射速约为1000发/min的高横向过载环境下,其安全性能够得到保证;在膛内高轴向过载环境下,其安全系统局部发生应变,但其安全性能不受影响。Aiming at the safety and reliability requirements of the mechanical trigger fuzes of small-caliber shells,we carry out the research on the safety of the trigger fuzes of small-caliber shells in supplying shells and internal ballistics.Through the study of small-caliber shell trigger fuzes,the 35 mm small-caliber shell fuse mode lis constructed.Based on the LS-DYNA dynamics simulation software,finite element simulation of small-caliber artillery fuzes is carried out to analyze the characteristics of the dynamics response of small-caliber artillery fuzes during the feeding process.And then,the internal ballistic simulation model is constructed by combining Simulink to extract the environmental parameters of the small-caliber shell when it is fired,and the finite element simulation of the small-caliber shell fuzes during the internal ballistic launching process is carried out based on LS-DYNA to analyze the kinetic response characteristics of the fuzes when they move inside the chamber.It is found that the safety of a 35 mm small-caliber shell fuze can be ensured in a high lateral overload environment with a firing speed of about 1000 rounds/min,and in a high axial overload environment in the bore,the safety system locally strains,but its safety performance is not affected.

关 键 词：小口径炮弹 触发引信 供弹 内弹道 安全性 数值模拟 

分 类 号：TJ430[兵器科学与技术—火炮、自动武器与弹药工程]