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MATLAB整装式液体随行装药内弹道过程的数值模拟

时间:2019-03-08 16:55来源:毕业论文
利用MATLAB软件编写数值模拟计算程序,计算结果与实验结果吻合较好。在此基础上,分别讨论了不同点火延迟时间、随行装药量、随行药类型等参数变化对内弹道性能的影响,研究结果

摘要弹丸初速是衡量火炮性能的一项重要指标,如何有效提高弹丸初速是兵器发射研究的关键之一。随行装药技术是提高弹丸初速的一种新型技术,本文对30mm液体随行装药进行内弹道理论研究,结果显示随行装药能够在保持膛压一定的条件下,可有效增大弹丸初速。33635
针对随行装药结构特点,对内弹道过程进行了具体分析,其中随行液体药采用两种方式燃烧,即整装式逐层燃烧和随行喷射雾化燃烧。对这两种方式的随行装药内弹道过程建立零维模型。采用四阶龙格-库塔法求解,利用MATLAB软件编写数值模拟计算程序,计算结果与实验结果吻合较好。在此基础上,分别讨论了不同点火延迟时间、随行装药量、随行药类型等参数变化对内弹道性能的影响,研究结果可为液体随行装药技术的研究提供参考。
关键词  液体随行装药  喷射燃烧  整装式燃烧  压力平台  内弹道设计  数值模拟
毕业论文设计说明书外文摘要
Title    Numerical Simulation on Interior Ballistic Process of Bulk Liquid Traveling Charge                        
Abstract
Muzzle initial velocity is an important indicator to measure the performance of artillery, how to effectively increase the muzzle initial velocity is one of the keys of weapon launch. Traveling charge is a new technique to increase the muzzle initial velocity, in this thesis, The research of interior ballistic for traveling charge of 30mm gunpowder was carried out. The results show that traveling charge technique can effectively increase the initial velocity under the condition of staying the same gun pressure.

源`自*六)维[论*文'网www.lwfree.cn


Directed on the structure characteristic of traveling charge, and analyzed the interior ballistic process. Two combustion ways, bulk-loaded combusted by layers and spray atomized combustion, were used to the traveling charge powder. Established the zero dimension model respectively for the interior ballistic process of traveling charge. Used fourth-order runge-kutta to salve and written numerical calculated programs by MATLAB, the results were resemble experimental results preferably. On this basis, respectively discussed the effect of different  parameters on interior ballistic performance, such as ignition delay, mass of traveling propellant, traveling propellant burning rate and so on. the results can inform the study of traveling charge technique.
Keywords  Liquid traveling charge   Spray combustion   Bulk-loaded combustion  Pressure platform   Interior ballistic design   Numerical simulation
目   次
1  绪论    1
1.1  课题背景及意义    1
1.2  国内外研究现状    2
1.3  本文的主要工作    3
2  整装式液体随行装药逐层燃烧的内弹道模型    4
2.1  随行装药结构和内弹道过程    4
2.2  物理模型    5
2.3  数学模型    5
2.3.1  液体药逐层燃烧数学模型    5
2.3.2  随行装药燃烧前的内弹道方程    6
2.3.3  随行装药燃烧后的内弹道方程    7
2.4  程序框图    9
2.4.1  主程序框图    9 源`自*六)维[论*文'网www.lwfree.cn
2.4.2  RK子程序框图    10
2.5  计算方法    11
2.6  数值模拟    11
2.6.1  装填与结构参数    11
2.6.2  计算结果与试验结果对比分析    12
2.6.3  随行装药结果与常规装药结果对比分析    14 MATLAB整装式液体随行装药内弹道过程的数值模拟:http://www.lwfree.cn/zidonghua/20190308/30835.html
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