摘要埋头弹火炮可提升原有战车武器系统的威力，是未来装甲武器的发展方向之一。此外，随行装药也是改善火炮性能的重要技术，它对提高弹丸初速影响尤为明显。本文以此为工程背景，基于国内外对埋头弹随行装药效应的研究发展现状，建立了埋头弹固体随行装药内弹道零维模型。以40mm埋头弹随行装药为对象进行了内弹道数值模拟，利用Visual Basic 6。0计算机语言进行程序编制，得出了40mm埋头弹固体随行装药一次点火、二次点火和随行装药燃烧后这三个阶段内弹道特征参数的变化规律，包括：p-t、v-t、p-l、v-l。最后分析讨论了装填与结构参数变化对埋头弹火炮内弹道性能的影响。83251

毕业论文关键词  埋头弹  随行装药  内弹道  数值模拟 

毕业设计说明书外文摘要

Title    Interior Ballistic Model And Numerical Simulation   of Traveling Charge of Cased Telescoped Ammunition                             

Abstract The Cased Telescoped Ammunition（CTA）which can enhance the power of the previous chariot weapon system is one of the development directions of the armored weapon in the future。Moreover, Traveling Charge is also an important technology to improve the performance of artillery,and its influence on raising the muzzle velocity is especially striking。Considering these as the engineering background,based on the present research from home and abroad of the CTA with traveling charge effect’s development,the internal ballistic zero dimension model of the CTA with traveling charge has been established。Taking the 40mm CTA as object，the internal ballistic numerical simulation has been done。 Visual Basic 6。0 computer language is used for programming。The change laws of the internal ballistic characteristic parameters including the curves of p-t、v-t、p-l、v-l have been obtained from the simulation respectively in three stages containing the first、the secondary ignition and the stage after the burning of the traveling charge。In the final,the influences of loading and structure parameters’changes to interior ballistic performance are discussed。 

Keywords  Cased Telescoped Ammunition  Interior Ballistic Model    Numerical Simulation  Traveling Charge   

1  绪论 1

1。1  研究背景及意义 1

1。2  国内外研究现状 4

1。3  本文主要工作 6

2  埋头弹随行装药内弹道零维模型 8

2。1  内弹道阶段划分 8

2。2  物理模型 8

2。3  数学模型 9

3  计算方法及程序设计 14

3。1  龙格-库塔法 14

3。2  软件功能 14

3。3  程序框图 18

4  埋头弹随行装药内弹道数值模拟 24

4。1  装填与结构参数 24

4。2  与40mm埋头弹实验结果的比较 26

4。3  埋头弹随行装药内弹道数值模拟及分析 26

5  埋头弹随行装药参数变化对内弹道性能的影响