Discussion on Mechanism of Breech-Blow Caused by Propellant Charge  

作　　者：贠来峰 芮筱亭 陈涛 王浩 邱从礼 

机构地区：[1]College of Power Engineering,Nanjing University of Science and Technology [2]Military Agency in Yangzhou Region,General Armament Department,Yangzhou 225009,China [3]Huayin Ordnance Test Center

出　　处：《Defence Technology（防务技术）》2007年第4期256-261,共6页Defence Technology

基　　金：Sponsored by National Defence Prestudy Foundation of China(40406010401)

摘　　要：From the view point of launch safety caused by fracture of propellant charge,this paper points out that the safety criterion of pressure wave is inadequate to evaluate the launch safety of propellant charge based on the initial negative differential pressure and sensitivity tests.Generally,the maximum barrel pressure does not depend upon the intensity of pressure wave correspondingly.The pressure wave intensity can not describe the fracture degree of propellant charge in chamber and reflect the mechanical environment of propellant charge fracturing exactly and wholly.The evaluation criterion for launch safety of propellant charge should be built on the basis of depicting the fracture degree of propellant bed.From the view point of launch safety caused by fracture of propellant charge, this paper points out that the safety criterion of pressure wave is inadequate to evaluate the launch safety of propellant charge based on the initial negative differential pressure and sensitivity tests. Generally, the maximum barrel pressure does not depend upon the intensity of pressure wave correspondingly. The pressure wave intensity can not describe the fracture degree of propellant charge in chamber and reflect the mechanical environment of propellant charge fracturing exactly and wholly. The evaluation criterion for launch safety of propellant charge should be built on the basis of depicting the fracture degree of propellant bed.

关 键 词：爆炸力学 发射安全 推进充量 内弹道 枪 

分 类 号：TJ410.1[兵器科学与技术—火炮、自动武器与弹药工程]