RLPG点火过程中贮液室压力振荡分析  

ANALYSIS OF PRESSURE OSCILLATIONS IN THE RLPG IGNITION PROCESS

作　　者：张玉荣[1] 余永刚[2] 金志明[2] 蔡小舒[1] 

机构地区：[1]上海理工大学动力学院,上海200093 [2]南京理工大学动力工程学院,南京210094

出　　处：《弹道学报》2000年第2期1-5,共5页Journal of Ballistics

摘　　要：建立了 2 3 mm RLPG点火过程分析模型 ,研究了贮液室产生压力振荡的主要原因 .分析了 RLPG在点火过程中贮液室液体压力振荡现象 ,此期间压力振荡频率相对较低 ,危害较大 .分析模型考虑了高压下液体可压缩性 ,模拟计算结果表明 ,液体可压缩性是此期间压力振荡的主要原因 .经过改进 RLPG结构 ,采用合理措施 。This paper analyzed the pressure osc illation in the ignition process of regenerative liquid propellant gun (RLPG). T he frequency of pressure oscillations is lower and more serious potentially, sin ce these conditions may lead to ignition in the reservoir during the start of co mbustion when most of the propellant is still unburned. This paper considered th e compressibility of liquid under high-pressure condition, and a model was made to analyze the pressure waves. The result of conclusion clearly shows that the compressibility of liquid is the important reason of pressure oscillations. A si gnificant suppression of oscillations is reached by mechanistical additives. Usi ng this additive, the ignition process of RLPG with an accompanying increase in intensity of oscillation will be controlled in safety region.

关 键 词：liquid PROPELLANT guns  pressure oscillations  ignit ion process 

分 类 号：TJ012-55[兵器科学与技术—兵器发射理论与技术]