摘要弹底压力和弹丸轴向加速度是研究火炮发射过程的重要参数,是火炮设计和弹丸设计的重要参考依据。本文提出一种同步测量弹底压力与弹丸过载加速度测试装置。该装置采用存储测量技术，相对于传统的测试方法具有明显优势。60252

本论文的主要内容包括：

（1）分析了同步测量弹底压力和弹丸轴向加速度时面临的问题，提出了测量弹底压力和弹丸轴向加速度的方法，并设计了测试装置的方案。

（2）设计了测试系统的电路部分，利用单片机AT89S52控制测试系统对信号进行采集记录，并采用C语言编制单片机程序，实现测试系统的数据采集、记录、串行通信等各项功能。

（3）针对测试装置高过载的工作环境，采用强化电路、有效的缓冲结构等防护措施保护测试装置。设计了测试装置的外部结构，建立结构的有限元模型，对结构刚强度进行校核分析。

毕业论文关键词  弹底压力  弹丸轴向加速度  存储测试  单片机  高过载

毕业设计说明书（论文）外文摘要

Title  Design of Testing Device for Base Pressure and Axial Acceleration of the Projectile

Abstract

Base pressure and axial acceleration of projectile are important parameters for the study of artillery launching process，which provide reference to design of the artillery and projectile. A device of synchronous measuring base pressure and axial acceleration of projectile is presented. It is based on storage measurement, which has obvious advantages compared with the traditional testing methods.

This thesis includes several main points as follows:

(1) After the problems of measuring bottom pressure and axial acceleration of projectile is analyzed, the method of measuring bottom pressure and axial acceleration of projectile is put forward and the scheme of testing device is designed.

(2) The circuit module of testing system is designs, which is controlled by AT89S52 to collect and record the measured signals. To achieve the functions of collecting and recording the data and serial communication, the single-chip computer is programmed by C language.

(3) The effective protective measures are adopted to protect the testing device in the high overload condition, such as strengthening circuit and effective buffer. Lastly, external structure of the testing device is designed and the finite element model of the main structure is built up and strength analysis of the external structure is analyzed.

Keywords  projectile base pressure  axial acceleration of projectile storage measurement  single-chip computer  high overload

目 录

1  绪论 1

1.1  课题研究目的及其意义 1

1.2  弹底压力及加速度测量方法的发展状况 1

1.3  存储测试技术发展状况 3

1.4  本文的主要研究内容 4

2  弹底压力及弹丸轴向加速度测试装置总体设计 5

2.1  测试装置的总体结构 5

2.2  弹载测试系统的总体方案 6

2.3  本章小结 7

3  弹底压力及轴向加速度存储测试系统的电路设计 8

3.1  测试装置的传感器 8

3.2  调理电路 8

3.3  数据采集系统实现触发的结构设计