关键词: 固体推进剂火箭发动机;推进剂燃速;参数识别;相关特性

Abstract: Based on the data from the motors firing, the transient burning rateof the full-scale motor and the standard testing motors is calculated. By using thetechnique of parameter identification, the constants in the Vielie Burning Rate Formula is determined. The determined results show that burning rate coefficient andburning rate pressure exponent are not only relatied to propellant characteristic, butalso relatied to the motor parameters. So, the regularity and cause of variation of theburning rate coefficient and burning rate pressure exponent are analysed. And a newapproach to analyse the correlation between full-scale motor and the standard testing motor is provided. And, the result of calculation is in good agreement with expert mental result.

Key words: Solid propellant rocket engine;Propellant burning rate;Parameteridentification;Correlation property.