论文部分内容阅读
在高氯酸铵(AP)系复合推进剂中混入硝酸铵(AN)时燃速下降且点火滞后时间增加。利用这种推进剂以初始温度为参数求出了燃速与卢、火滞后时间。AP系复合推进剂与AN系复合推进剂燃速的温度感度并无大差别,其值约为0.2%~0.3%/K。燃速的压力指数有随混合量增加而减少的趋势。点火滞后时间的温度感度可取-0.5%~-1%/K的小值,与燃速的温度感度同样因混合AN引起的变化很小。增加推进剂的初始温度时点火滞后时间减少,物理点火滞后时间无变化,主要是化学声、火滞后时间受影响。
Ammonium perchlorate (AP) composite propellant mixed with ammonium nitrate (AN) burning rate decreases and the ignition lag time increases. The use of this propellant to the initial temperature as a parameter to find the burning rate and Lu, fire lag time. AP system composite propellant and AN composite propellant burning temperature sensitivity is not big difference, its value is about 0.2% ~ 0.3% / K. The pressure index of burning rate tends to decrease as the mixing amount increases. Ignition delay time temperature sensitivity desirable -0.5% ~ -1% / K small value, and burning rate of temperature sensitivity as a result of mixed AN little change. When the initial temperature of propellant is increased, the ignition delay time decreases and the physical ignition lag time does not change, mainly the chemical sound and the fire lag time are affected.