30mm固体随行装药内弹道设计与数值模拟
关键词 内弹道 随行装药 数值计算 20904
毕业论文设计说明书（论文）外文摘要
Title Design of the interior ballistics and Numerical
Simulation for 30mm solid traveling charge
Abstract
In the modern high technology war conditions, in order to meet operational requirements, researchers in worldwide pour a lot of time and energy in improving muzzle velocity.Among them, the traveling charge as a new way to accelerate the projectile brings opportunity. Based on the classic interior ballistics theory,with the characteristics of traveling charge, this paper constructed a zero dimensional interior ballistic model for solid traveling charge, while the method for numerical calculation was the fourth-order Runge-Kutta, calculating program compelled by VB6.0. And the interior ballistics process of solid traveling charge was simulated on 30mm ballistic gun and obtained P-t curve,which agrees with the experimental results well. By this, the paper discussed the effects caused by change of ignition delay time, the amount of traveling charge mass, traveling charge burning rate and other parameters on the ballistic process.And the calculation results of the study of solid traveling charge provides a reference for solid traveling charge design.
Keywords interior ballistics traveling charge numerical simulation
目 次
1 绪论 1
1.1 课题背景与意义 1
1.2 国内外研究现状 2
1.2.1 随行装药实验研究 2
1.2.2 随行装药理论研究 3
1.3 本文主要工作 3
2 固体随行装药内弹道零文模型 5
2.1 物理模型 5
2.2 数学模型 5
2.2.1 随行装药燃烧前方程 5
2.2.2 随行装药燃烧后方程 6
2.3 本章小结 7
3 数值模拟方法 8
3.1 四阶龙格－库塔法 8
3.2 流程设计 9
3.3 界面设计 10
3.4 本章小结 10
4 数值模拟结果及分析 12
4.1 30mm固体随性装药装填参数 12
4.2 模拟结果与实验结果比较 12
4.3 随行装药与常规装药比较 14
4.4 本章小结 17
5 随行装药参数变化对内弹道性能的影响 18
5.1 点火延迟时间的影响 18
5.2 随行装药量的影响 20
5.3 随行装药燃速的影响 23