摘要高超声速飞行器是指飞行速度大于5马赫的飞行器，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。本课题论文以美国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，对其非线性模型进行解耦和线性化，并研究其线性模型的特性。由于其线性模型具有不稳定的运动特性，针对线性化模型，分别采用极点配置和LQR控制两种方法设计控制器以改善系统的性能，保证了闭环系统的稳定性，并分别对两种方法设计的控制器进行仿真分析。考虑到近空间飞行器在飞行过程中可能出现的模型不确定性、噪声干扰等问题，基于模型完全跟随控制方法设计了一种模型跟随控制器，并对其进行仿真验证。6498
关键词：高超声速飞行器 线性模型 极点配置 LQR控制 模型跟随
毕业设计说明书（论文）外文摘要
Title Model following control method and simulation for hypersonic vehicle
Abstract
Hypersonic vehicle refers to the aircraft faster than 5 Mach, as a kind of near space vehicle, which the research and development has great significance to military strategy and the peaceful use of space, has become a hot spot of current research in the field of international aviation and aerospace. This project take the Hyper-X series hypersonic vehicle developed by NASA for background, for the hypersonic vehicle is characterized by highly nonlinear in a wide range, strong coupling, time-varying parameters and other characteristics of nonlinear model, this paper focused on decoupling and linearization of the nonlinear model, and studying the characteristics of the linear model. For the linear model has unstable movement characteristics, we take two methods including pole placement and LQR control method to design the controller to improve the performance of the system, and to the stability of the closed-loop system, then simulate and analysis the controller set by the two methods respectively. Considering the near space vehicle model uncertainty, noise interference and other issues that may arise during the flight, a model following controller is designed based on the perfect model following control method, and simulation.
Keywords：Hypersonic vehicle， Linear model, Pole placement, LQR control，Model following
目 录
1 绪论 1
1．1 研究背景 1
1.1.1 高超声速飞行器的优点 1
1.1.2 高超声速飞行器涉及的关键技术 1
1．2 高超声速飞行器研究现状 2
1.2.1 国外研究现状 2
1.2.2 国内研究现状 4
1．3 高超声速飞行器种类及应用前景 4
1.3.1 按飞行方式分 4
1.3.2 按功能分 5
1.3.3 按气动布局分 5
1．4 高超声速飞行器的飞行控制方法简介 6
1．5 本文的内容安排 7
2 高超声速飞行器非线性模型的解耦与线性化 8
2．1 高超声速飞行器数学模型的建立 8
2．2 非线性模型的解耦 10
2．3 纵向模型的线性化 12
3 系统特性分析 14
3．1 系统的稳定性分析 14
3．2 系统的可控性与可观性分析 15
3.2.1 可控性分析 16
3.2.2 可观性分析 16 高超声速飞行器的模型跟随控制方法及其仿真:http://www.751com.cn/zidonghua/lunwen_4081.html