关键词: 推进剂燃速;发动机试验;参数分析;预测技术;固体火箭发动机;测量

Abstract: A pressure-time test curve of cavity charge engine is used to determine the expression for calculating the basical burning rate of grain charged at high andlow pressure ranges by means of burning rate recognition.Compared with test data obtained from burning rate measuring instrument,the burning rate from the expression proposed in this paper is 5-8% higher.The predicted interior ballistics is very agreed with measured results.

Key words: Propellant burning rate;Engine test;Parametric analysis;Prediction technique;Solid rocket engine;Measurement