复合结构的高能固体推进剂探索研究

摘要本文介绍了熔融沉积成型的3D打印原理、固体火箭发动机的相关结构与知识，介绍了几种装药结构的作用方式。对平衡压强、燃面计算、推力、比冲等固体火箭发动机零维内弹道的参数的计算方法进行了探讨。本文只研究在星形结构装药条件下，用两种不同燃速的推进剂进行叠层组合来得到推力调节的内弹道性能，从而实现预定的外弹道效果。此外，设计的组合药柱有并联式星孔双层叠层药柱、并联式星孔三层叠层药柱、串联组合星孔药柱，采用VB程序对这类新结构推进剂的内弹道性能进行了预估计算，并采用3D打印方法制备了叠层结构推进剂药柱的模拟样品。78570

毕业论文关键词 3D打印固体火箭发动机推进剂装药内弹道模拟叠层组合星孔装药

毕业设计说明书外文摘要

Title Exploration of high solid propellant with composite structure

Abstract In this paper, the principle of 3D printing and the related structure and knowledge of solid rocket motor were introduced。 The calculation of solid rocket motor zero dimensional interior ballistic parameters which include pressure balance,burning surface,thrust and specific impulse were discussed。 In this paper, the internal ballistic performance of the thrust adjustment is obtained by using two kinds of propellant with different burning rate under the condition of star charge。 In addition,we have designed three kinds of combined propellant which include parallel star hole double stacked grain, parallel star hole three stacked grain, star hole grain of series combination。the interior ballistic performance of the propellant of new structure was estimated by using VB program, laminated structure simulated samples of propellant is prepared by using 3D printing method。。

Keywords 3D printing solid rocket motor propellant charge Interior ballistic simulation Stack combined star hole charge

1 绪论 1

1。1 快速成型工艺熔融沉积法（FDM）简介 1

1。2 固体火箭发动机的基本结构 2

1。2。1 固体推进剂装药 2

1。2。2 燃烧室 2

1。2。3 喷管 2

1。2。4 点火装置 3

1。3 固体推进剂装药结构简介 3

1。3。1 发射动力型装药 3

1。3。2 飞行动力型装药 3

1。3。3 长时间续航型装药 4

1。4 研究内容 4

2 固体火箭发动机内弹道 6

2。1 零维内弹道微分方程 6

2。2 平衡压强 8

2。3 星孔装药燃面计算 9

2。3。1 几何燃烧定律 9

2。3。2 星孔装药几何参数 9

2。4 推力计算公式 12

2。5 比冲 13

2。5。1 比冲的定义复合结构的高能固体推进剂探索研究:http://www.youerw.com/huaxue/lunwen_90575.html