大口径高低压火炮装药及点传火结构设计与数值模拟方法研究
毕业论文关键词：高低压火炮 内弹道设计 Runge-Kuntta 数值模拟
Title heavy caliber high-low Pressure gun’s assembling Powder and the structure designing of ignition and flame and the research of the numerical simulation method Abstract Now, with the development of modern advanced weapons, high- low pressure principle has the trend to be more and more widely used due to its unique advantages in the field of weapons particularly in the launch system of the low speed guns. Based on consulting lots of documents about high and low pressure guns both abroad and at home, point at the launch characteristic of high-low pressure gun , adopted the method of the numerical simulation to research its interior ballistic simulation processes. Established the launching system of the mathematics model and the physical model of the high and low gun. Using VB to write the interior ballistic procedure, the classical Rung-Kutta to solute the equation. Achieved the numerical simulation for the high-low pressure gun. And test for the pressure of gas and the regularity of the pellets’ motion in the high-and-low room. Get the pressure-time traces, projectile velocity-time trace, and travel-time trace. Test results show that the establishment of the high-low launch system is reasonable and reliable. Finally, point at the filling parameters and structure parameters to analysis the internal ballistic performances. Provide the reference for the structure and the filling parameter of the high-and-low pressure gun.
Key words: high-low pressure gun, interior ballistic design, Rung-Kutta, numerical simulation
目录
1 绪论 .. 1
1.1 研究的背景和意义 1
1.2 国内外发展概况 . 1
1.3 本文的主要研究内容 .. 3
2 高低压火炮结构设计方案 .. 4
2.1 引言 .. 4
2.2 高低压火炮系统的组成 4
2.3 高低压火炮系统的工作机理 . 4
2.4 本章小结 5
3 高低压火炮装药结构设计 . 6
3.1 引言 .. 6
3.2 火药装药 6
3.3 装药结构对高低压火炮内弹道性能的影响 . 6
3.4 本章小结 7
4 高低压火炮内弹道模型与数值模拟 8
4.1 引言 .. 8
4.2 物理模型 8
4.3 数学模型 8
4.3.1 假设 8
4.3.2 高低压火炮内弹道不同时期的划分 9
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