本文選題：飛行動力學 + 風切變　； 參考：《南京航空航天大學》2013年碩士論文

【摘要】：低空風切變對飛機起飛著陸構成嚴重威脅。隨著飛機自身系統(tǒng)可靠性的提高，由于低空風切變等大氣擾動現(xiàn)象直接導致或間接誘發(fā)飛行員操縱失誤，從而造成飛行事故或不安全事件的比例正不斷上升。論文采用動力學建模和仿真的手段，以提高低空風切變下飛機進場著陸的安全性為目標，設計飛機進近下滑道跟蹤、自動著陸等控制律，并進一步研究改出風切變的若干安全控制策略問題。論文主要研究內容有： (1)研究建立了典型風切變模型和飛行動力學模型。建立反映風場本質特性的微下?lián)舯┝黠L切變模型。參考B747飛機建模數(shù)據(jù)，建立了該機動力學模型并進行了配平和模型驗證。 (2)設計實現(xiàn)若干基本飛行控制律。先后設計了飛機俯仰控制律、自動著陸控制律以及協(xié)調轉彎控制律。將控制律代入動力學模型中，對其進行反復設計-驗證研究。 (3)考查若干風切變改出策略的安全性。引入能量高度、F因子、飛行安全包線等安全性指標，在基本飛行控制律基礎上，運用動力學仿真實現(xiàn)風切變改出控制。先后對3種縱向改出策略、從弱風一側實施的橫側改出策略進行了安全性分析。 (4)以提高飛機進近下滑道跟蹤的抗風切變干擾能力為目標，研究實現(xiàn)了最優(yōu)控制下滑道跟蹤。仿真結果表明，，最優(yōu)控制律可有效提高飛機在風切變干擾下的下滑道跟蹤和飛行狀態(tài)保持能力。
[Abstract]:Low-altitude wind shear poses a serious threat to the take-off and landing of aircraft. With the improvement of the reliability of the aircraft system the proportion of flight accidents or unsafe events is increasing because of the low altitude wind shear and other atmospheric disturbances which directly or indirectly induce pilots to control errors. By means of dynamic modeling and simulation, aiming at improving the safety of aircraft approach landing under low altitude wind shear, the control law of aircraft approach and glide path tracking and automatic landing is designed in this paper. Furthermore, some security control strategies for windshear are studied. The main contents of this thesis are as follows: The typical wind shear model and flight dynamics model are established. A wind shear model reflecting the essential characteristics of wind field is established. With reference to the modeling data of B747 aircraft, the dynamic model of the aircraft is established, and the balancing and model verification are carried out. Design and implement some basic flight control laws. The pitch control law, automatic landing control law and coordinated turning control law are designed successively. The control law is added to the dynamic model, and the design and verification of the control law are carried out repeatedly. To examine the safety of some windshear change-out policies. Based on the basic flight control law and the introduction of energy height factor F factor and flight safety envelope, wind shear control is realized by dynamic simulation. This paper analyzes the safety of three vertical strategies, which are implemented from the weak wind side to the horizontal side. 4) aiming at improving the ability of aircraft approach glide track to resist wind shear interference, the tracking of sliding track under optimal control is studied and realized. The simulation results show that the optimal control law can effectively improve the glide track tracking and flight state retention of aircraft under wind shear interference.
【學位授予單位】：南京航空航天大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：V328

【參考文獻】

相關期刊論文 前2條

1 王會,李紹燕,陳宗基;基于μ綜合方法的運輸機縱向自動著陸控制律[J];北京航空航天大學學報;2003年12期

2 常凡凡;李愛軍;王長青;;大型客機CAT Ⅲ級自動著陸機載設備需求[J];航空工程進展;2011年02期

本文編號：1859897