弹道学报2025，Vol.37Issue(2)：39-48,10.DOI:10.12115/ddxb.2024.05001
不同内膛结构下弹带挤进参数化建模及动力学特性研究
Research on Parametric Modeling and Dynamic Characteristics of Belt Extrusion Under Different Bore Structures
摘要
Abstract
The rotating band engraving process during artillery firing is transient in duration,which involves intense interactions between the rifling and the rotating band,exerting significant influence on the initial state of projectile motion within the barrel.Standardized modeling and setup procedures is a critical prerequisite for comparing the dynamic responses of rotating band engraving under different internal bore structures.Regarding this issue,basic parameterization of the finite element analysis process for rotating band engraving was studied.Specifically,mesh node coordinates were calculated through scripting,and the correspondence between mesh nodes and elements was established to generate finite element models of rifled barrels.Additionally,the execution logs of finite element software were compiled to proceduralize the modeling of the projectile rotating band and the preprocessing of rotating band engraving.A GUI plugin capable of one-click generation of rifled barrel and projectile rotating band finite element models,along with automated preprocessing configurations,was developed.The engraving processes under varying internal bore structural parameters were analyzed.The study focused on the effects of structural differences in rifling profiles,land height and land width on the rotating band engraving process.Dynamic simulation shows that in hybrid rifled barrels,the resistance encountered by the rotating band during engraving is smaller than that in uniform-twist rifled barrels,and the maximum stress at engraving completion is also lower.Reduced land height or narrowed land width decreases the internal bore resistance during rotating band engraving,resulting in faster engraving velocities.关键词
弹带/挤进过程/参数化建模/内膛结构/动力学分析Key words
rotating band/engraving process/parametric modeling/inner bore structure/kinetic analysis分类
武器工业引用本文复制引用
姚助国,李雷,王中成,杨国来..不同内膛结构下弹带挤进参数化建模及动力学特性研究[J].弹道学报,2025,37(2):39-48,10.基金项目
国家自然科学基金青年基金项目(52305155) （52305155）
江苏省基础研究计划青年基金项目(BK20230904) （BK20230904）
