【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 ,可以将压力振荡控制在安全范围之内更多还原

【Abstract】 This paper analyzed the pressure oscillation in the ignition process of regenerative liquid propellant gun (RLPG). The frequency of pressure oscillations is lower and more serious potentially, since these conditions may lead to ignition in the reservoir during the start of combustion when most of the propellant is still unburned. This paper considered the 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 significant suppression of oscillations is reached by mechanistical additives. Using this additive, the ignition process of RLPG with an accompanying increase in intensity of oscillation will be controlled in safety region.更多还原