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《高平尾布局飛機(jī)深失速特性及失速改出傘數(shù)值計(jì)算與分析》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、第1卷第3期2010年8月航窄T程進(jìn)展ADVANCESlNAER()NAUTICAI．S(’l卜’N【：EANDENGINEERlN【；V01．1Aug．NO．32010文章編號：1674—8190(2010)03—214—06古亞同卞尾布局飛機(jī)深失速特性及失速改出傘數(shù)值計(jì)算與分析饒秋磊，王啟(中國航空工業(yè)集團(tuán)公司飛行試驗(yàn)研究院，西安710089)摘要：ARJ21飛機(jī)是我國自行研制的具有典型T尾布局特點(diǎn)的先進(jìn)支線1s機(jī)。失速和失速特性試飛是A尉21飛機(jī)適航取證試飛最重要的試飛項(xiàng)目之一。高平尾(T尾)布局飛機(jī)“r能存在深失速運(yùn)動(dòng)模態(tài)，給l￡機(jī)的失速特性試飛帶來安傘風(fēng)險(xiǎn)。本文首先分析
2、r高平尾(T尾)布局飛機(jī)的宅氣動(dòng)力學(xué)特點(diǎn)，剖析r“深失速”現(xiàn)象的產(chǎn)生原因，并在此基礎(chǔ)上以ARJ2l飛機(jī)為算例。結(jié)合具體的風(fēng)澗實(shí)驗(yàn)數(shù)據(jù)庫，應(yīng)用上裎估算的方法對動(dòng)導(dǎo)數(shù)進(jìn)行了補(bǔ)充完善，其次建立了適合預(yù)測飛機(jī)失速和深失速運(yùn)動(dòng)方程的卒氣動(dòng)力學(xué)模型，并對飛機(jī)的運(yùn)動(dòng)特性特別是深失速特性進(jìn)行了仿真計(jì)算，計(jì)算結(jié)果與實(shí)際試飛結(jié)果取得1r較好的一致性；最后選擇深失速狀態(tài)作為失速改出傘設(shè)計(jì)的臨界狀態(tài)，建立失速改出傘的數(shù)學(xué)模型。對失速改出傘改m深失速的動(dòng)態(tài)過程進(jìn)行了仿真計(jì)算，驗(yàn)證了失速改出傘改出深失速的設(shè)計(jì)參數(shù)，為失速改出傘的研制提供了參考依據(jù)。關(guān)鍵詞：失速／深失速；失速改出傘；T尾(高平尾)色機(jī)中圖分類
3、號：V211．7文獻(xiàn)標(biāo)識碼：AAnalyseandNumericalSimulationaboutDeep-stallCharacterofHighHorizontalTailPlaneandStallRecoveryParachuteRaoQiulei，WangQi(ChinaFlightTestEstablishment。AviationIndustyCorporationofChina。Xi’an710089，China)Abstract：ARJ21isthefirstChineseself-developedadvancedregionalcivilaircraftwit
4、hatypicalTtaildesign．ThestallandstatlcharaeteristiesflighttestswillbethemostimportantitemsamongtheARJ21airworthinesscertificationsubjects．AdeepstallmotionmodemayexistduetOtheTtailconfigurationandthismayintroducehighriskfortheflighttest．Inthispaper，theaerodynamiccharacteristicsandthemotionmech
5、anismofdeepstallareanalyzed．Basedontheanalysis。theARJ2laircraftisappliedasacalculatingexample，andthewindtunneltestdatabasetheoscillatingaerodynamicsderivativesbeenestimatedbyanengineeringmethodarecomplemented．Furthermore，thepropermotionequationandaerodynamicmodelforthedeepstallmotionarebuiltu
6、p．7I'henanumericalcalculationoftheaircraftmo—tioneharacteristicswithemphasisondeepstalliSeompleted．Thecomparisonbetweenthecalculationresultandtheex-pefimentresuhhasgotagoodagreement．Basedonthecalculationresult。thedeepstallmotionmodeisselectedasthestallrecoveryparachutedesignCOndition．Finallyt
7、hemathematicmodelofstallrecoveryparachuteissetup，andtheaircraftrecoverydynamicprocessfromthedeepstallbyusingthestallrecoveryparachuteiscalculatednumerically．Thedesignparametersforthestallrecoveryparachuteareconfirmed，andtheresultcouldbeusedas
