【正文】 之二的公司擁有自己的公務(wù)機。遠大空調(diào)、春蘭電器、海爾電子等企業(yè)均擁有私人飛機。不過也有人將 上述定義中的用于客運的飛機稱為公務(wù)機，這樣算來中國僅有 42架。 據(jù)民航局統(tǒng)計， 20xx 年底，中國內(nèi)地公務(wù)機機隊規(guī)模為 109 架，比 20xx 年增長 %。s static aeroelasticity problems appeared in the early days of the plane design, design a plane need a static aeroelasticity analysis, calculate the divergence speed. As to the aircraft aeroelasticity, flutter problem occupies an important position. Aircraft flutter speed need to be calculated to guarantee the safety of the aircraft flight. This graduate project is going to know about the aircraft flutter in detail, calculate the flutter speed, and make a prehensive check. Key words: Corporate aircraft, Load, Aerodynamic elasticity, Divergence and Flutter 北京航空航天大學(xué)畢業(yè)設(shè)計（論文） 第 IV頁 目 錄 1 緒論 ...................................................................................................................................... 1 課題背景和目的 ............................................................................................................ 1 國內(nèi)商務(wù)機基本情況 ......................................................................................... 1 中國公務(wù)機發(fā)展的制約因素 ............................................................................. 3 氣動分析 ............................................................................................................. 5 課題目的 ............................................................................................................. 5 國內(nèi)外研究狀況 ............................................................................................................ 6 課題研究方法 ................................................................................................................ 6 論文的構(gòu)成以及研究內(nèi) 容 ............................................................................................ 6 2 飛行載荷的計算 .................................................................................................................. 8 飛行載荷計算用到的主要計算數(shù)據(jù) ........................................................................... 8 飛機機翼半翼展展向升力系數(shù)分布 ........................................................................... 8 理論分析 .......................................................................................................... 8 本機計算：巡航狀態(tài) .................................................................................... 10 沿機翼展向壓力中心線的確定 ................................................................................. 13 壓力中心確定的一般方法 ............................................................................ 13 本機機翼壓力中心線的確定 ........................................................................ 14 弦向載荷分布 ............................................................................................................. 15 飛行包線的確定 ......................................................................................................... 17 過載系數(shù) n ..................................................................................................... 17 飛機受載包線的確定 .................................................................................... 17 危險工況分析 ............................................................................................................. 23 “A情況”的計算分析 .................................................................................. 23 3 發(fā)散速度的計算 ................................................................................................................ 31 靜氣彈基本概念 .......................................................................................................... 31 氣動彈性力學(xué)的扭轉(zhuǎn)發(fā)散基本原理 .......................................................................... 31 氣動彈性靜力問題分析的基本方程 .......................................................................... 33 大展弦比后掠機翼靜氣動彈性基本方程 .................................................................. 33 北京航空航天大學(xué)畢業(yè)設(shè)計（論文） 第 V 頁 機翼發(fā)散的計算與分析 .............................................................................................. 34 本公務(wù)機的發(fā)散速度的計算分析 .............................................................................. 35 翼剖面剪心相對位置的簡化計算分析 .......................................................... 35 夢想一號機翼的發(fā)散速度計算 ....................................................................... 38 4 顫振的計 算分析 ................................................................................................................ 43 顫振概念的理解 .......................................................................................................... 43 彎扭顫振的現(xiàn)象以及物理本質(zhì) .................................................................................. 43 物理現(xiàn)象 ........................................................................................................... 43 物理本質(zhì) ........................................................................................................... 44 顫振分析 .......................................................................................................... 47 結(jié)構(gòu)模型 ........................................................................................................... 47 氣動模型 ........................................................................................................... 49 求解分析 ........................................................................................................... 49 顫振速度分析 ................................................................................................... 51 畢業(yè)設(shè)計總結(jié) .......................................................................................................................... 53 致謝 .......................................................................................................................................... 56 參考文獻 .................................................................................................................................