密闭燃烧器法测推进剂燃速——两种不同热损失修正方法的比较  

On Burning Rate Measurement of Solid Rocket Propellants in a Closed Burner: Comparison Between Two Different Heat-Loss Modifications

作　　者：肖育民[1] 李葆萱[1] 刘建琦 

机构地区：[1]西北工业大学航天工程学院

出　　处：《弹箭技术》1997年第2期14-17,共4页

摘　　要：热损失修正是密闭燃烧器法测推进剂燃速的关键技术之一。本文推导了用微分方法处理密闭燃烧器法测推进剂燃速的数学模型，分析了平均热损失修正及动态热损失修正两种方法的基本原理，在此基础上将两种修正方法应用于密闭燃烧器法的数据处理。结果表明：用动态热损失修正法获得的推进剂燃速更精确。Heat-loss modification (HLM) is one of the key techniques in burning rate measurement of solid rocket propellants in a closed burner. A mathematical model based on differentiation for dealing with burning rate measurement in a closed burner is proposed and the fundamentals on averaged HLM and dynamic HLM are analysized in this paper.Two HLM methods are used to process measured P-t data and the results show that the burning rate obtained from dynamic HLM is more accurate than that from averaged HLM, in which the amount of heat loss is evaluated too high.

关 键 词：密闭燃烧器 热损失修正 推进剂 燃速 

分 类 号：V51[航空宇航科学与技术—航空宇航推进理论与工程]