摘要枪弹射击精度是衡量自动武器射击性能的标准之一。理想的枪弹射击效果，不仅要求 一定的射击准确度，同时还要求高的密集度。如何提高射击精度是需要进行综合因素的考 量分析，从而得出对应结论。本课题建立了六自由度外弹道模型，通过 MATLAB 进行仿 真计算分析，分析了弹丸初始参量、弹丸结构特征量、环境参数等参数变化对射击精度的 影响。通过结果分析，我们了解到各参量的变化给弹丸射击精度带来何种变化，这样我们 可以通过控制相应参数，得到我们想要的射击精度，达到理想的射击效果。通过本课题的 计算分析，为高精度枪弹设计提供一定的理论依据。 69545

毕业论文关键词 空气动力  射击精度  外弹道  影响因素

毕 业 设 计 说 明 书 外 文 摘 要

Title Study on the factors affecting the accuracy of the bullet  shooting

Abstract

The bullet shooting accuracy is one of the standards to measure the performance of automatic weapons. The ideal bullet shooting effect， not only requires a certain shooting accuracy, but also requires high intensity. How to improve the shooting accuracy is the need to carry out comprehensive factors of the consideration of the analysis, so as to draw the conclusion. This paper establish the six freedom degree ballistic model, Simulation and analysis by MATLAB, The influences of the initial parameters of the projectile, the characteristic parameters of the projectile and the environmental parameters on the firing accuracy are analyzed. Through the analysis, we know that changes in the parameters of the projectile firing accuracy to bring kind of changes so that we can according to different needs change the corresponding parameters, firing accuracy that we want and achieve the ideal effect of shooting. This paper through the calculation analysis, provide a theoretical basis for the design of high precision cartridge. 

Keywords Aerodynamic force  Firing accuracy   External ballistics influence factor 

本科毕业设计说明书 第 I  页

目 次

1 绪论 1

1.1 研究背景及意义 1

1.2 国内外发展现状 2

1.3 本文主要内容 4

2 弹丸外弹道模型 5

2.1 坐标系定义 5

2.2 弹丸外弹道运动方程 7

2.3 弹丸气动力的表达形式 9

2.3.1 阻力 9

2.3.2 升力 9

2.3.3 马格努斯力 9

2.3.4 静力矩 10

2.3.5 赤道阻尼力矩 11

2.3.6 极阻尼力矩 11

2.3.7 马格努斯力矩