[1]全嘉林,苗润源,梁争峰.不同类型预制破片速度衰减规律及迎风面积的修正[J].爆破器材,2019,48(06):28-32.[doi:10.3969/j.issn.1001-8352.2019.06.006]
　QUAN Jialin,MIAO Runyuan,LIANG Zhengfeng.Velocity Attenuation Rule of Different Prefabricated Fragments and Correction of Windward Area[J].EXPLOSIVE MATERIALS,2019,48(06):28-32.[doi:10.3969/j.issn.1001-8352.2019.06.006]
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不同类型预制破片速度衰减规律及迎风面积的修正()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
48
期数:
2019年06
页码:
28-32
栏目:
基础理论
出版日期:
2019-12-09

文章信息/Info

Title:
Velocity Attenuation Rule of Different Prefabricated Fragments and Correction of Windward Area
文章编号:
5359
作者:
全嘉林; 苗润源; 梁争峰
西安近代化学研究所（陕西西安，710065）
Author(s):
QUAN Jialin;  MIAO Runyuan;  LIANG Zhengfeng
Xi’an Modern Chemistry Research Institute (Shaanxi Xi’an, 710065)
关键词:
杀伤战斗部; 预制破片; 破片速度; 速度衰减; 迎风面积
Keywords:
fragmenting warhead;  prefabricated fragment;  fragment velocity;  velocity attenuation;  windward area
分类号:
TJ410.3+3
DOI:
10.3969/j.issn.1001-8352.2019.06.006
文献标志码:
A
摘要:
为研究不同速度区间典型预制破片在空气中飞行的速度衰减规律，采用基于多普勒效应的雷达测速装置，获得了典型球形和长方体破片在1.5 Ma~4.0 Ma速度区间内的速度衰减规律和衰减系数，并对长方体破片迎风面积的确定方法进行了修正。结果表明：球形破片衰减系数拟合值与经典理论计算值吻合良好，Φ7 mm和Φ8 mm球形破片的速度衰减系数分别为0.007 61 m－1和0.006 65 m－1；而长方体破片衰减系数的试验值与经典理论计算值相比明显偏低，约为理论计算值的0.75~0.95倍；长方体破片迎风面积修正系数k与Ma近似呈线性关系。
Abstract:
In order to study the velocity attenuation rule of typical prefabricated fragments flying in the air at different velocity intervals, velocity attenuation rule and attenuation coefficient of typical spherical and rectangular fragments in the velocity interval of 1.5 Ma-4.0 Ma were obtained by radar velocity measurement device based on Doppler effect. Moreover, the method for determining the windward area of rectangular fragments was modified. The results show that the fitting values of the attenuation coefficients of spherical fragments are in good agreement with those calculated by classical theory. The velocity attenuation coefficients of spherical fragments of Φ7mm and Φ8mm are 0.007 61 m－1 and 0.006 65 m－1, respectively. While the experimental values of the attenuation coefficients of cuboid fragments are significantly lower than those that was calculated by classical theory, which are about 0.75-0.95 times of the theoretical values. Windward area correction coefficient k of cuboid fragments is approximately linear with Ma.

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备注/Memo

备注/Memo:
收稿日期：2019-05-15
第一作者：全嘉林（1997－），男，硕士研究生，主要从事爆炸力学与战斗部技术研究。E-mail:quan_jialin@163.com
通信作者：梁争峰（1972－），男，博士，研究员，主要从事爆炸力学与弹药技术研究。E-mail:1697589935@qq.com
更新日期/Last Update: 2019-12-04