摘要高超声速（Hypersonic）飞行器是指飞行速度大于5马赫（Mach）的飞行器，作为一种近空间飞行器，其研究与发展对军事战略与和平利用空间具有重大意义，已成为目前国际航空航天领域研究的热点。本课题以美国NASA研制的Hyper-X系列高超声速飞行器为背景，针对高超声速飞行器在大范围高度非线性、强耦合、参数时变等特性，研究其非线性模型的线性化解耦技术，并研究其在特定平衡点的纵向解耦线性模型的鲁棒镇定控制方法及其仿真。论文所做的主要工作如下：65302

    首先，查阅资料，建立高超声速飞行器的模型。对高超声速飞行器选定一个平衡点，通过对高超声速飞行器的飞行环境及模型本身做出合理假设，将其模型数值化，具体化，并利用小扰动原理对其线性化。采用极点配置法设计飞行器的高度、速度控制器。用LQR法来保证响应的快速性。最后用PMF法使实际模型跟随参考模型的输出，使之鲁棒镇定。

毕业论文关键词：高超声速飞行器  线性化 解耦   极点配置  LQR  PMF

毕业设计说明书（论文）外文摘要

Title Robust  stabilization and simulation based on longitudinal decoupling model of hypersonic vehicle                                         

Abstract

     Hypersonic (Hypersonic) aircraft is flying faster than Mach 5 (Mach) of the aircraft, as a near-space vehicle, its research and development of military strategy and peaceful use of space is of great significance, has become an international aerospace research hotspot. The topics to U.S. NASA developed the Hyper-X series of hypersonic aircraft as the background for hypersonic vehicles in a wide range of highly nonlinear, strong coupling, parameters such as time-varying characteristics of the linearization of the nonlinear model decoupling techniques, and study its equilibrium point at a specific longitudinal decoupled linear model robust stabilization control method and its simulation. Papers main work is as follows:

     First, access to information, the establishment of hypersonic vehicle models. Hypersonic vehicle selected for a balance, through the hypersonic vehicle flight environment and the model itself to make reasonable assumptions, its model number, concrete, and use its linear perturbation theory. Using pole placement design aircraft altitude, speed controller. LQR method to ensure a rapid response. Finally, the actual model PMF method follows the reference model output, making it robust stabilization.

   Keywords: linear decoupling hypersonic vehicle pole configuration  LQR  PMF

                            目   次  

1 绪论1

1.1选题背景和意义… 1

1.2 高超声速飞行器控制系统研究概述1

2 高超声速飞行器模型 …4

2.1 引言…4

2.2 高超声速飞行器建模…4

2.3 本章小结 9

3高超声速模型线性化…10

3.高超声速飞行器状态的选择10

3.2 模型线性化…12

3.3线性化模型的分析13

3.4 本章小结14

4 高超声速飞行器线性模型的仿真和控制14

4.1极点配置方法分析15

4.2 LQR方法分析18

4.3 本章小结20

5 基于PMF的高超声速飞行器容错控制…21

5.1 引言21

5.2 问题描述23

5.3 增益设计24

5.4 仿真验证25

5.5 本章小结28

结论29