## Runge-Kutta法长管道内多级运动体运动特性分析

Title The Mechanical Analsis of Multilevel-motion in a Long Pipeline
Abstract
The study of multi-level motion for long pipeline has important significance for horizontal aircraft.At the same time,the process of multi-level motion is quite complex because it not only involves the collision between the projectile and the obstruction blocks ,but also includes the flow of gas in the long pipeline. We use  classical mechanics to describe the projectile collision with obstruction blocks ; isentropic compression mathematical model in  engineering thermodynamics to describes the state of the gas chamber and the  projectile motion equation;we also establish a mathematical model of long multi-stage pipeline movement, and the classical fourth-order Runge-Kutta method for solving equations to implement the numerical simulation of the dynamics of a long pipeline. 源自六;维,论/文.网*加7位QQ324`9114 www.lwfree.cn
Keywords  long pipeline Multistage body numerical simulation    Runge-Kutta method    isentropic compression

1  绪论    3
1.1 研究目的与意义    3
1.2 国内外研究现状    3
1.3  本文主要研究内容    3
2  长管道内多级运动体运动过程    3
2.1  引言    3
2.2  长管道内多级运动体的结构    3
2.3  长管道内多级运动体的工作原理    3
2.4    长管道多级运动阶段划分    3
2.5    本章小结    3
3  长管道多级运动模型及数值方法    3
3.1   引言    3
3.2 长管道多级运动模型    3
3.2.1 基本假设    3
3.2.2 数学模型    3
3.2.3 长管道多级运动模型数值计算    3
3.3  本章小结    3
4  长管道多级运动数值模拟    3
4.1  引言    3
4.2 数值模拟结果及分析    3
4.3  初始注入压力对长管道多级运动特性影响的分析    3
4.4 本章小结    3

1  绪论
1.1 研究目的与意义

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