小口径弹丸跨介质弹道特性+文献综述
关键词 小口径弹丸 跨介质运动 混凝土介质 弹道特性
毕业论文设计说明书外文摘要
Title ballistic features of small diameter bullet across the media
Abstract
The purpose of this article for the study of small-bore bullet across medium ballistic characteristics, in view of the concrete medium in solid medium span gas solid medium ballistic simulation. Based on mechanics principle, the establishment of a small projectile flying in the gas medium in the three degrees of freedom model, draw lessons from solid penetration research results and test experience equation is obtained, the projectile is studied in across the medium resistance change process of the movement, the projectile was deduced in cratering stage and concrete medium ballistic model of the movement. In order to validate the correctness of the model, used matlab software to 23 mm, 37 mm, 50 mm projectile as an example, has carried on the cross to C15, C30 concrete medium respectively medium ballistic simulation, obtained the projectile movement across the medium ballistic parameters and the projectile trajectory. Through the analysis of the results, for small diameter projectile across a medium ballistic characteristics study provides reference.
Keywords small diameter bullet, across the medium movement, ballistic features, the concrete medium
目 次
1 绪论 1
1.1 研究背景及意义 … 1
1.2 国内外研究现状 … 1
1.2.1 弹丸跨水介质弹道特性研究 … 1
1.2.2 弹丸跨金属介质弹道特性研究… 2
1.2.3 弹丸跨陶瓷介质弹道特性研究 3
1.2.4 弹丸跨混凝土介质弹道特性研究 … 3
1.3 本文主要内容 4
2 小口径弹丸跨空气混凝土介质理论研究及仿真方法 5
2.1 跨介质理论研究 … 5
2.1.1 跨介质运动类型的确定 … 5
2.1.2 跨介质运动过程分析 5
2.3 混凝土的破坏准则 8
2.2 小口径弹丸跨空气混凝土介质运动仿真方法… 9
2.2.1 阻力计算方程 … 9
2.2.2 弹道方程 10
2.2.3 龙格库塔法解弹道方程 13
2.2.4 simulink框架图 14
2.3 本章小结 15
3 仿真结果与分析 16
3.1 速度对弹道特性的影响 16
3.1.1 速度对弹丸行程的影响 16
3.1.2 速度对跨介质运动时所受阻力的影响 18
3.1.3 速度对弹道轨迹的影响 20
3.2 弹丸口径对弹道特性的影响 22
3.2.1 弹丸口径对弹丸运动行程的影响 22
3.2.2 弹丸口径大小对跨介质运动所受阻力的影响 … 24
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