摘要:近年来,微传感器与微处理器的发展,使得多旋翼无人飞行器再次成为研究的热点。相比于传统的固定翼飞行器与直升机,多旋翼飞行器具有飞行姿态灵活、机械结构简单、成本低、安全性高等特点,在很多领域都具有十分广阔的应用前景。
本文首先说明了多旋翼飞行器在国内外发展的现状,总结了多旋翼无人飞行器相对其他无人机的特点与优势,表明了六旋翼飞行器相较于其它多旋翼飞行器所具有的的优点。然而,研究可靠、高效、稳定的六旋翼飞行器飞控系统有相当的必要性。
本文首先选取了传统构型的六旋翼飞行器,分析了其飞行原理。然后针对其构型与飞行特性建立了它的非线性运动模型,再针对此模型建立了基于PID方法的姿态控制与位置控制回路。最后借助了Matlab/Simulink对该飞行器进行了数字化建模与仿真,验证了PID控制算法在六旋翼飞行器飞行控制中的有效性。
关键词 六旋翼飞行器 建模 PID控制 姿态控制 位置控制 仿真
毕业设计说明书外文摘要
Title Design of Flight Control System Based On Multi-rotors
Abstract:In recent decades, the rapid development of MEMS and micro-processors has greatly contributed to people’s concern on research in unmanned multi-rotors. Compared to traditional fixed-wing aircrafts and helicopters, multi-rotors have advantages in flexibility, cost and security and will be widely used in many fields.
This paper first states current statement of research in multi-rotors and clarifies the advantages of multi-rotors against traditional UAVs. The necessity of further research in six-rotors is claimed as well as its advantages against other multi-rotors.
This paper then focuses on traditional structural and flight modes of six-rotors. Then we establishes a non-linear math model of a six-rotor. Furthermore, this paper gives out the design of control system of this model based on the PID method. Finally, a digital model is built in Matlab/Simulink based on the design above. Various simulations have been carried out to examine the effectiveness of this control system.
Keywords Six-rotor, Modeling, PID control, Attitude control, Position control, Simulation
目 次
1 绪论 1
1.1 工程背景及意义 1
1.2 国内外研究现状 1
1.3 总体技术方案及其社会影响 2
1.4 技术方案的经济因素分析 2
1.5 论文章节安排 2
2 六旋翼飞行器的飞行原理分析与非线性模型 4
2.1 飞行器构型 4
2.2 飞行器飞行原理 4
2.3 六旋翼飞行器动力学建模 5
2.3.1 坐标系定义 5
2.3.2 旋翼的升力与反扭矩 6
2.3.3 机体的空气动力学分析 6
2.3.4 电机动力模型 6
2.3.5 飞行器动力学建模 6
2.4 Matlab/Simulink建模 Matlab基于多旋翼飞行器的飞行控制系统设计:http://www.chuibin.com/jisuanji/lunwen_205647.html