|Table of Contents|

Principle of Variable Muzzle Velocity Shoot for Steady Effectiveness Nonlethal Killing

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2010年06期
Page:
765-769
Research Field:
Publishing date:

Info

Title:
Principle of Variable Muzzle Velocity Shoot for Steady Effectiveness Nonlethal Killing
Author(s):
RAN Jing-luXU ChengNIU Fu-qiang
School of Mechanical Engineering,NUST,Nanjing 210094,China
Keywords:
guns variable muzzle velocity shoot nonlethal killing steady effectiveness killing
PACS:
E920
DOI:
-
Abstract:
To realize the controllablity of killing objects,the idea that the variable muzzle velocity shoot for steady effectiveness nonlethal killing can be realized by using the principle of reducing the pressure in bore by discharging part propellant gases is developed.The accelerating process of the pressure in bore on the bullet is controlled by adjusting the area of gas ports according to the distances of targets obtained by sight,so that various muzzle velocities are obtained and the steady effectiveness nonlethal killing is realized for objects at differente distances.The structure diagram of variable muzzle velocity guns using the principle of reducing the pressure in bore is proposed.The variable-mass thermodynamics calculation model of the variable muzzle velocity shoot is built.Taking a certain type of variable muzzle velocity steady effectiveness nonlethal killing gun for example,with the shooting distance of 10~120 m and two isokinetic lethality criterions that the endpoint specific kinetic energy is 10 J/cm2 and the endpoint kinetic energy is 50 J,the parameter matching relation of the shooting process for the gun is calculated by the established mathematical model.The results show: with the increase of the shooting distance,the muzzle velocity for realizing isokinetic killing increases linearly;under two isokinetic lethality criterions,the best opening distance is 5 mm;for the isokinetic lethality criterion of 10 J/cm2,with the shooting distance of 10~40 m,the area of a gas port increases nonlinearly with the increase of the shooting distance;under other conditions,the area of a gas port increases linearly;with the increase of the shooting distance,the difference of the gas mass being out from the gas port increases under two isokinetic lethality criterions.

References:

[ 1] 袁光林. 身管武器变初速发射机理与控制技术研究[ D]. 南京: 南京理工大学机械工程学院, 2007:23- 29.
[ 2] 徐诚, 陆家鹏, 周克栋, 等. 辅助药室采用整装液体药提高弹丸初速的实验和理论研究[ J] . 兵工学报, 1996, 17( 1) : 6- 11.
[ 3] 张江波, 张玉成, 蒋树君, 等. 双药室装药实现能量补偿的技术研究[ J]. 火炸药学报, 2008, 31( 2): 68- 70.
[ 4] 刘国鑫, 廖振强, 王涛, 等. 双级装药膛内二次发射原理探讨与分析[ J]. 南京理工大学学报(自然科学版), 2007, 31( 4): 470- 473.
[ 5] 倪志军, 周克栋, 赫雷, 等. 基于侧装药结构的金属风暴武器内弹道机理分析[ J]. 南京理工大学学报(自然科学版), 2005, 29( 6): 674- 678.
[ 6 ] 倪志军, 周克栋, 赫雷. 侧装药金属风暴武器系统内弹道性能一致性研究[ J]. 兵工学报, 2005,26( 5): 595- 599.
[ 7] 陈杨, 廖振强, 王涛, 等. 自动武器喷管气流反推减后坐技术[ J] . 南京理工大学学报( 自然科学版),2008, 32( 6): 676- 680.
[ 8] 金志明. 枪炮内弹道学[M ]. 北京: 北京理工大学出版社, 2004: 81- 120.
[ 9] 陆家鹏. 自动武器学气体动力学分册[M ] . 北京:国防工业出版社, 1988: 246- 285.
[ 10] 安宝林, 赫雷, 周克栋, 等. 低速枪弹对有生目标作用效果的试验研究[ J]. 弹道学报, 2010, 22 ( 3 ):78- 80.
[ 11] 5步兵自动武器及弹药设计手册6编写组. 弹道及弹药射击( 上册) [M ] . 北京: 国防工业出版社,1977: 39- 84.

Memo

Memo:
-
Last Update: 2012-11-02