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摘要高品质飞行控制系统是现代高性能飞行器实现复杂飞行任务的重要保证，基于此背景开展了的等高飞行控制系统设计与仿真。 在导弹飞行力学和导弹控制原理的基础上，结合巡航导弹纵向通道控制特点和导弹六自由度方程，建立了巡航导弹弹体动力学小扰动线性化模型。然后对此模型进行简化得到巡航导弹等高飞行过程控制系统的内回路过载传递函数和外回路高度传递函数，结合文献资料设计出 PID 控制器，并计算出PID 控制器的参数。最后应用 MATLAB/Simulink 软件对该控制系统进行仿真，并绘制出控制系统响应图像。通过对仿真图像的分析，修正计算得到的参数，验证控制器设计的好坏。仿真结果表明：该 PID控制器具有结构简单，精度高和适应性强的特点。 61029
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毕业论文关键词 小扰动线性化模型，过载回路，高度控制 Title Research on contour flight control technology for cruise missile Abstract High quality flight control system is an important guarantee for a modern high-performance aircraft to achieve complex missions. Based on this background the contour flight control system was designed and simulated. On the basis of Missile Flight Aerodynamics and Missile Control Principle, combining with the longitudinal channel control characteristic of cruise missile and the missile six degrees of freedom equation, a small disturbance linear model of cruise missile bomb body dynamics was built up. By simplifying the above model, the inner loop overload transfer function and the outer loop height transfer function of cruise missiles constant altitude flight control system were obtained respectively. Meanwhile, combined with the literature data, a PID controller was designed and the parameters of this controller were calculated. Then, simulation study of this control system was carried out on the platform of MATLAB/ Simulink software and the corresponding response images of this control system were drawn. Finally, the performance of the PID controller was verified by analyzing the simulation images and the calculated parameters. The result showed that the PID controller had simple structure, high accuracy and strong adaptability characteristics.
Keywords Small disturbance linear model, Overload loop, Height control
目录
1绪论1
1.1课题背景..1
1.2.1“战斧”式巡航导弹.2
1.2.2“AGM-129”先进巡航导弹..3
1.2.3“布拉莫斯”超音速巡航导弹..3
1.2.4“长剑”-10型巡航导弹.4
1.2.5巡航导弹等高飞行控制国内外研究现状5
1.3本文研究内容.5
2.1导弹运动方程组..7
2.1.1导弹动力学方程7
2.1.2导弹运动学方程..9
2.1.4导弹的几何关系方程10
2.1.6导弹运动方程组.11
2.2导弹纵向运动模型..13
2.3导弹小扰动线性化模型.14
2.3.1弹体动力学小扰动线性化原则.14
2.3.2导弹小扰动线性化模型.14
2.3.3导弹刚体运动传递函数.16
3控制系统设计18
3.1作用在导弹上的力和力矩..18
3.2反馈在导弹控制中的应用..19
3.3导弹控制系统的组成20
3.4法向过载控制系统..21
3.5高度控制系统设计..28
3.6PID控制器工作原理及参数算法29
4数值仿真.34
4.1Matliab/Siumlink在弹道仿真过程中的应用.34
4.2仿真要求.34
4.3仿真条件及过程.34
4.4仿真结果及分析.35
4.4.1过载控制系统阶跃响应..36
4.4.2过载控制系统正弦响应..37
4.4.3过载控制系统方波响应..39
4.4.4高度控制系统仿真41