180mm单室双推火箭弹设计

摘要根据对单室双推固体火箭发动机装药形式的了解，设计了轮孔装药结构的双推力火箭发动机，编写了轮孔装药的内弹道计算程序，采用零维内弹道方程在常温、高温、低温的工作环境下分别进行了内弹道计算，绘制出三种状态下的推力压力曲线，得到符合要求的推力方案；设计了火箭发动机的燃烧室、喷管、连接底及稳定装置等重要零部件，并进行了热力和应力计算，结果说明火箭发动机零部件能够满足强度及刚度要求；对全弹的气动力计算得出火箭弹在一定马赫数及攻角下飞行时的升力与阻力大小，分析了火箭弹的静稳定性，并对火箭弹的射程进行估算。69543

毕业论文关键词单室双推固体火箭发动机轮孔装药结构设计强度校核

毕业设计说明书外文摘要

Title Design of 180mm single chamber dual thrust solid rocket projectile

Abstract

According to the realizion of grain form in single chamber dual thrust solid rocket motor, designed the wheel hole structure grain to produce double thrust, and write the wheel hole grain

dimension interior ballistic equation under the room temperature, high temperature, and low temperature working conditions. Mapped the thrust-time and pressure-time curves in the three kinds of condition, the result showed that thrust scheme meets the requirements; stated the design process of important parts like rocket combustion chamber, nozzle, and stabilizer. Thermal and stress calculation showed that rocket motor parts can satisfy the intensity and

Mach number and Angle of attack get the flight resistance and lift force.Rocket static stability is analyzed, and the range of the rocket are calculated.

Keywords single chamber dual thrust solid rocket motor wheel hole grain structure design intensity proofread

本科毕业设计说明书第 I 页

1 绪论 1

1.1 课题背景、研究目的及意义 1

1.2 相关研究综述 1

1.3 实现单室双推的几种方案 4

2 总体设计 7

2.1 设计指标及要求 7

2.2 基本设计思路与装药方案选择 7

2.3 发动机总体结构分析和预定 8

2.4 推进剂参量预定 8

2.5 发动机性能参量预定 8

3 发动机装药设计 10

3.1 发动机装药质量估算 10

3.2 装药燃速选择 10

3.3 180mm单室双推火箭弹设计:http://www.youerw.com/jixie/lunwen_78500.html