兵工自动化2023，Vol.42Issue(12)：67-70,90,5.DOI:10.7690/bgzdh.2023.12.014
转膛自动机弹带二次挤进过程数值模拟
Numerical Simulation of Secondary Engraving Process of Revolver Automata Cartridge Band
摘要
Abstract
In order to study the secondary engraving problem caused by the unequal rifling height between the revolver bushing and the barrel bushing of revolver automata,a finite element model reflecting the rifling height difference was established to analyze the secondary engraving process of the belt.Through numerical simulation,the stress,deformation and temperature were obtained when the belt was completely squeezed into the revolver bushing and the barrel bushing.The simulation results were in good agreement with the notch of the belt recovered in live firing,which indicated that the established finite element model had a certain credibility.The simulation results show that the unequal height of the bore liner and the barrel liner has a significant effect on the belt squeezing process.The half-height bore liner can make the belt squeeze into the bore liner more smoothly,but the belt will produce stronger impact when it squeezes into the barrel liner for the second time;Full-height rifling is more difficult when the belt is squeezed into the revolver liner,but it is smoother when the belt is squeezed into the barrel liner twice.关键词
转膛自动机/弹带挤进/二次挤进效应/数值模拟Key words
revolver automata/band engraving/secondary engraving effect/numerical simulation分类
军事科技引用本文复制引用
林圣业,黄晨烨,王茂森,苏晓鹏,戴劲松..转膛自动机弹带二次挤进过程数值模拟[J].兵工自动化,2023,42(12):67-70,90,5.基金项目
基础加强计划重点项目(201XXX135) （201XXX135）
