固体发射药着火模型及数值分析
毕业论文关键词 发射药 着火 数学模型 数值分析
Title Propellant ignition model and numerical analysis
Abstract
Propellant ignition process is important in revealing the physical nature of the
initial bore projectile motion, which features of the interior ballistics fire
after the process has a significant impact, the study of propellant ignition
process design for the interior ballistic workers is necessary . Coupled with the
introduction of new methods of ignition, such as a laser ignition, plasma ignition,
etc., the study of propellant burning becomes more important. Working paper is
propellant for heat transfer, the establishment of a one-dimensional propellant
transfer model and boundary conditions, the equations of mathematical physics
discrete differential equations, and program calculation, the propellant
temperature distribution. On this basis, the use of this program for parametric
analysis on the impact of thermal parameters and characteristics of the chemical
reaction parameters such as changes in the propellant ignition process. In
discussing the parameters of time, focusing on the parameters for propellant
ignition delay time, the impact of temperature rise rate and other values, with
a strong practical significance.
Keywords Propellant ignition Mathematical model Numerical Analysis
目 录
1 引言1
1.1 背景及意义1
1.2 国内外研究现状 1
1.3本文主要工作5
2 着火模型推导及计算6
2.1 热点火模型及理论研究 6
2.2 点火方程的差分解法 7
2.3 计算结果分析 9
3 热物性参量与化学反应特征量的的影响 17
3.1 火药导热系数λ 18
3.2 火药比热c21
3.3 火药密度ρ23
3.4 火药反应热与均相反应前指系数之积 QK24
3.5 火药活化能26
3.6 气体常数R28
3.7 表面温度 30
3.8 环境温度 31
结论 31
致谢 32
参考文献33
1 引言
1.1 背景及意义
第二次世界大战以来，坦克，飞机和水上舰艇的性能都有了很大的提高，由于火箭和导
弹的出现和发展，人们对火炮重要地位的认识曾经有过短暂的迟疑时期。但随后不久，特别
是 70年代以来，火炮及其弹药的发展经久不衰。我国幅员辽阔，在我国的防御体系中，火炮
始终是主要武器之一。随着火炮的发展，三高（高装填密度，高膛压，高初速）已成为火炮
发展的必然趋势经典内弹道学已难以应付局面。在世界各国常规武器的发展过程中，固体发
射药火炮及相应的内弹道和装药问题，始终是兵器工作者的重要课题。从坦克炮，大威力压
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