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摘要大口径狙击枪具有高精度、大威力和射程远的特点。在狙击系统中，作为实现终点效应的狙击枪弹，是其中不可或缺的重要一环，甚至直接决定了狙击系统的性能，大口径狙击枪弹的外形尺寸与初速都会影响弹丸的外弹道。本设计通过参考大量现有狙击枪弹的资料，拟定了一种大口径狙击枪弹弹丸的战术技术指标；；然后通过计算机MATLAB对以相同的初速射击时，不同弹形系数和口径的外弹道进行仿真计算，从符合战术技术指标的方案中得到较为优秀的口径；然后通过经验公式得到弹丸的外形尺寸和弹形系数；最后依靠现有大口径枪弹的药筒尺寸参数和经验公式，获得一个较为合理的药筒和底火。51306
关键词 大口径 狙击枪弹 弹丸设计 弹道设计 药筒设计 MATLAB
毕业设计说明书外文摘要
Title A large caliber sniper bullets design
Abstract
Large caliber sniper rifle has the characteristics of high precision, large power and range far. In the sniper system, the sniper bullets as end effect, is one of the indispensable important one annulus, even directly decided the sniper system performance, the appearance of large caliber sniper bullets size and velocity will affect the projectile outside ballistic. This design by reference to a large number of data of existing sniper bullets, drew up a large caliber sniper bullets projectile tactical technique index;; And then through the computer MATLAB of shooting at the same velocity, different elastic coefficient and diameter of outer ballistic simulation calculation, from meet tactical technique index scheme is relatively excellent caliber; Then the shape of the projectile is obtained by empirical formula size and shape coefficient; Finally rely on the existing large caliber bullets of the cartridge case dimension parameters and the empirical formula, to obtain a reasonable cartridge and primer.
Keywords Large diameter Sniper bullets The projectile design Ballistic design The cartridge design MATLAB
目 次
1 引言 1
1.1 大口径狙击枪弹 1
1.2 研究背景及意义 1
1.4 大口径狙击步枪弹的发展趋势 2
1.5 本课题要研究或解决的问题和拟采用的研究手段 3
2 大口径狙击枪弹的战术技术指标 4
3 大口径狙击枪弹弹丸的外弹道计算 5
3.1 弹道诸元的计算公式 5
3.2 基于MATLAB的外弹道弹道仿真 9
3.3 仿真过程 10
3.4 外弹道仿真的结果分析 10
4 弹丸的结构设计 15
4.1 总体结构设计 15
4.2 弹丸外形结构 15
4.3 弹丸内膛结构 18
4.4 12.7mm大口径狙击枪弹 24
4.5 大口径狙击枪弹弹丸外形结构参数以及初速的确定 25
5 药筒的设计 27
5.1 药筒的材料