高速钻地弹水泥靶侵彻过程的实验分析与计算机仿真.docx

殒I论文蠢速链避弹零泥靶幔耪过程豹蜜赣辑寇与造墨望!堡墨
摘 要
弹丸对混凝±霞麓麓嚣豹骚究楚近年来鹣~个慈煮,已逐步磁淹一个越来越重要的谦题。本文迸行了正在研制中的子母弹侵彻战斗部结构设计、试验研究和理论研究。主蟹内容如下:
(1)结构设计和试验研究辗攒技术指标完成了予母弹侵餐战斗帮攒{萎l弹髂戆尺寸帮络孛奄浚{={},尾翼兹尺
寸窝设诗缝药、靶薅足寸秘缭构设诗,完藏’≯横羧弹丸混凝±鹣模叛试验,礤究罄体强发和初速度对侵彻深魔的影响:通过对结构设计的研究和弹丸侵彻混凝土的试验研究,党善钻地弹设计方案。
(2)理论研究搜集鞍分绍了国杰外~魏应尾较为广泛的经验公式,将实验馕帮经验公式计算
簧褥绝豢羧了对浇疆究,分毒螽了各经验公式弱褥点,结合试验臻梁,砖经验公式韵
适用髅俸了简单的概括。
运用窀腔膨胀理论,建立了空腔表面应力和空腔膨胀速度之间的理论模型。通过对弹头部的受力分析,建立了弹丸的运动方穰,推导出弹丸运动的加速度、速度方程,编溅了相应的计算程序。分柝了弹丸质熬、长径比、弹头部彤状、混凝土靶密度、畿澄等霆素怼交大橙镪深度豹影凌。
运用肖限元程序对侵镪i臻稷进行了数菹模拟,得到的结果和实验德较为符合。
关键词:侵彻,混凝土,缩比试验,经验公式,空腔膨胀理论、汁髀机仿真
颈上论文高速铉蟪搿永嚣靶爱鬻过纛转实验鹾究等诗算掇茹宾
Abstract
Studies of瑶issile impact wlth reinforced concrete structure have e a focus in current projectiie ration paper presents experimentation research puter simulation studies of the projectile ration into main contents are as follows:
(1)Configuration design and Experiment research
The projectile configur8tion of ration weapon is designed according to the technical and tactics target,including the structure design of the projectile,the structure design of the empennage and the structure design of the concrete simulation experiments studying the relation between velocity and concrete intensity and ration depth have been carried out。Via the studies of design and experiment, consummate the design project of ration weapon.
(2)Theoretical research
Some classical Experience formulas were mended and discussed. There were a contrast between the results from the formulas and the result from experiment。 Some characteri stics of the formulas were
analyzed。
Based on the theory of vacuum expanding,the theoretical model about the relation between exterior stress and velocity has been established. Acceleration and veloci ty equation were derived. According to the theoretical research,result from the model has no pared with the experiment factor which effect the ration depth such as projectile mass,shape of projectile,density and intensity of CODCrete were