Analysis of the effect of bore centerline on projectile exit conditions in small arms  

作　　者：David Leonhardt Mark Garnich Miljenko Lucic 

机构地区：[1]College of Engineering,University of Canterbury,Private Bag 4800,Christchurch,8140,New Zealand [2]Novacam Technologies Inc.,277 Lakeshore Road Suite#4,Pointe-Claire,Quebec,H9S 4L2,Canada

出　　处：《Defence Technology（防务技术）》2022年第12期2160-2169,共10页Defence Technology

摘　　要：Most finite element models of small arms focus on an idealized barrel,typically one with a perfectly straight bore centerline.Using five different experimentally measured bore centerlines,this investigation analyzes the effect centerline nonlinearity has on projectile exit conditions.This includes the effect of rotating a centerline through several orientations.Modeled using Abaqus/Explicit,this dynamic analysis simulates a single firing cycle for each centerline.Projectile jump is calculated for each model as a measure of the effects of warped centerlines.The warped centerlines have a small effect on barrel dynamics.

关 键 词：Finite element analysis Small arms Barrel dynamics Bore centerline 

分 类 号：TJ410[兵器科学与技术—火炮、自动武器与弹药工程]