摘要底排装置的工作效能主要表现在其复合推进剂燃烧稳定性、一致性与高效性。本文主要针对AP/HTPB底排复合推进剂的点火燃烧性能进行了研究，并计算分析该复合推进剂的燃烧特点。主要研究工作如下:（1）对AP和HTPB的化学结构、热分解特征与它们单元推进剂燃速相关性的学习；（2）对燃速预估模型进行编程模拟，并进行验证；（3）结合AP/HTPB复合推进剂的燃速模型，研究了AP颗粒粒度、含量以及燃烧压力对推进剂燃速的影响；（4）对AP/HTPB复合推进剂的热力学参数进行分析。83093

毕业论文关键词:复合推进剂；燃速预估；燃烧机理；数值模拟

毕业设计说明书外文摘要

Title  The calculating of the burning rate and the thermodynamic     parameter of AP/HTPB composite propellant                 

Abstract The efficiency of Base-bleed unit mainly depends on the stability, consistency

and high efficiency of the composite propellant。 In this paper, the characteristic of ignition and combustion on a AP/HTPB composite propellant is studied, in addition, analyzing the characteristic of combustion on the propellant。The main work is as follows: (1)Learning laws of thermal decomposition of the high-energy components including AP and HTPB, their decomposition mechanism and production at initial combustion stage are established。(2) A model for calculating the burning rate of propellants of high-energy explosives is simulated by programming。 (3)According to the burning rate estimated model,the impact of burning rate on the size and content of AP particle in the propellant and the pressure of combustion is studied。(4)Studied the thermodynamic parameters of the AP/HTPB base bleed composite propellant。

Keyword：composite propellant;burning performance;combustion mechanism;numerical simulation

目次

1  引言 1

1。1  研究背景 1

1。2  国内外研究概况 2

1。3  本文的内容及主要采用的方法 4

2  AP/HTPB复合推进剂热分解特征与燃速的相关性 6

2。1  AP/HTPB复合推进剂的燃烧特性 6

2。2  AP/HTPB复合推进剂的热分解规律 7

2。2。1  燃速预估理论 7

2。2。2  AP的热分解规律 8

2。2。3  HTPB的热分解规律 9

2。3  AP的燃速预估公式 9

2。3。1  AP的升华对燃速公式的影响 9

2。3。2  HClO3的裂解对燃速公示的影响 9

2。3。3  AP单元推进剂的燃速计算公式 10

2。4  AP与HTPB的化学结构参数 10

3  AP/HTPB复合推进剂燃烧机理和燃速预估模型 11

3。1  AP/HTPB复合推进剂燃烧机理 11

3。2  AP/HTPB复合推进剂的火焰结构 11

3。3  AP对复合推进剂燃烧的影响 12

3。3。1  基本假设 12

3。3。2  AP对燃烧表面结构的影响 12

3。3。3  AP对推进剂燃烧初期的影响