簡(jiǎn)介：中國(guó)民航大學(xué)碩士學(xué)位論文航空AES數(shù)字接收機(jī)關(guān)鍵技術(shù)的研究與實(shí)現(xiàn)姓名姚彬申請(qǐng)學(xué)位級(jí)別碩士專業(yè)通信與信息系統(tǒng)指導(dǎo)教師吳志軍20070308中國(guó)民航大學(xué)碩士論文ABSTRACTTHESOFTWAREDEFINEDRADIOTECHNIQUEISAKINDOFNEW1CADINCOMMUNICATIONTECHNIQUECAUSEDTHETECHNICALINNOVATIONOFRECEIVERBYMEANSOFTHESOFTWAREDEFINEDRADIOS，ITISBETTERTOMAKETHEA／D、D／ACLOSERTOTHEANTENNA，ANDPROCESSINGTHESIGNALINTHEDIGITALDOMAINANYCOMMUNICATIONFUNCTIONWILLBEPERFORMEDINTHESALNEHARDWAREPLATFORMTEALIZEDIFFERENTFUNCTIONBYCHOOSEDIFFERENTBLOCKOFSORWARESOFTWAREDEFINEDRADIOCALLCOMMUNICATEWITHTHESTATIONOFOLDSYSTEMBECAUSEITCANFORMALLKINDSOFMODULATEUNDEEANDPROTOCOL，THISCANPROLONGTHECYCLEOFTHESTATIONANDSOREDUCETHECOSTSOTHESOFTWAREDEFINEDRADIOHASABRIGHTFOREGROUNDINTHECOMMUNICATIONFIELD，ESPECIALLYINTHEMOBILECOMMUNICATIONFIELDDUETOTHELIMITATIONOFDEVICELEVEL，ITISIMPOSSIBLETOSAMPLERFSIGNALSOITISAVALIDWAYTOSAMPLEIFSIGNALTEALIZETHESOFTWAREDEFINEDRADIECEIVERTHIS燁RFIRSTDISCUSSTHECOMPOSINGOFAVIATIONSYSTEMICFORINMARSATANDCHANNELTYPES，ANDANALYZESPECIALTYTHEBASEFRAMEWORKANDTHEKEYTECHNIQUESOFTHESOFTWAREDEFINEDRADIOCOMBININGPCHANNELPROPTECHNICALGUIDELINESANDRESEARCHINGONTHEPRACTICALAPPLICATIONSINIFDIGITALRECEIVERTHISPAPERPUTFORWARDAKINDOFBROADBANDIFDIGITALRECEIVERDESIGNOFTHEAVIATIONAESWITHTHESOFTWAREDEFINEDRADIOTHESTUDYOFTHISPAPERPLACESEMPHASISTWOKEYTECHNIQUESTHEBLOCKOFSIGNALPROCESSINGINTHEIFANDTHESYNCHRONIZATIONOFCARRIERTHESIGNALPROCESSINGINTHEIFGIVESSPECIALDETAILSOFALGORITHMANALYSISANDREALIZESTECHNIQUESINADCANDDDC，ANDCARRIERSYNCHRONIZATIONANALYSETHESYNCHRONIZATIONALGORITHMOFCARRIERFREQUENCYANDPHASEANDGIVETHEIMPLEMENTATIONINFPGA，INCLUDINGSTRUCTUREDIVISIONHARDWAREDESIGNANDLOGICSYNTHESISKEYWORDSSOFTWAREDEFMEDRADIO；DIOTALIF；ANALOGTODIGITALCONVERTER；DIGITALDOWNCONVERTER；CARRIERRECOVER；FIELDPROGRAMMABLEGATEARRAYⅡ

簡(jiǎn)介：西北工業(yè)大學(xué)碩士學(xué)位論文航空典型結(jié)構(gòu)材料腐蝕行為與控制的研究姓名田莉莉申請(qǐng)學(xué)位級(jí)別碩士專業(yè)材料學(xué)指導(dǎo)教師劉道新20060301懋熬王鼗太學(xué)鞭士學(xué)位論文擒要舞蔥黼度爵嚏疆離簸臺(tái)耢攀在櫥媲除段豹蔽瀑速率，壤大穩(wěn)霸啜灄零。夜35℃～70。|C試驗(yàn)溫發(fā)范圍內(nèi)，復(fù)臺(tái)張料的吸瀑特性遵從FICK定攆。在3S℃澄淡下燕熱簿黥瓣禱滲夫了簸合耪旗在襁貽滁段戇蹶漫遵率巍飽積暇滋搴，并盈藤藤瀚耷趣載薅熬大，復(fù)合稀瓣奩鞠戇除袋鶼啜淹速率穗這戮平掇辯鶼讖秘蔽滋攀越丈。河瓣，暖澄健復(fù)合襯褥的承裁熊力翳囂降低。關(guān)鍵溺摟憋褰鑣，不臻鑲，裔強(qiáng)浚鑲，怒舞懿畿鑲，鍰會(huì)壘，簸紓雄壤溪環(huán)氟復(fù)合櫥黼，敷漫，娥鑲，磷豫L

簡(jiǎn)介：中圖分類號(hào)理2窆UDC68L碩士學(xué)位論文學(xué)校代碼Q§三三密級(jí)公玨航空發(fā)動(dòng)機(jī)導(dǎo)流葉片導(dǎo)流角的測(cè)量與分析MEASUREMENTANDANALYSISOFAEROENGINEGUIDEVANE’SDIVERSIONANGLE作者姓名丁梓健學(xué)科專業(yè)控制科學(xué)與工程研究方向智能檢測(cè)學(xué)院系、所信息科學(xué)與工程學(xué)院指導(dǎo)教師魯五一教授副指導(dǎo)教師論文答辯日期蘭絲蘭』勺答辯委員會(huì)主席齜中南大學(xué)二零一四年五月航空發(fā)動(dòng)機(jī)導(dǎo)流葉片導(dǎo)流角的測(cè)量與分析摘要飛機(jī)在飛行過程中的座艙抖動(dòng)現(xiàn)象一直以來都是航空領(lǐng)域中復(fù)雜且容易引發(fā)事故的問題。研究表明航空發(fā)動(dòng)機(jī)導(dǎo)流葉片的一致性對(duì)發(fā)動(dòng)機(jī)的性能會(huì)產(chǎn)生重要的影響，是導(dǎo)致飛機(jī)座艙抖動(dòng)的主要原因之一。當(dāng)前，航空發(fā)動(dòng)機(jī)檢修工廠對(duì)葉片一致性檢測(cè)方法落后，都是使用尺寸規(guī)手工對(duì)葉片進(jìn)行測(cè)量。手工測(cè)量的系統(tǒng)誤差很大、精度不高。這為飛機(jī)的安全飛行埋下了隱患。為了準(zhǔn)確地對(duì)葉片的一致性進(jìn)行檢測(cè)，本文提出一種導(dǎo)流角離線測(cè)量方案。本文詳細(xì)介紹了喘振產(chǎn)生的原因和預(yù)防措施，分析了葉片一致性對(duì)喘振的影響，提出了改進(jìn)的導(dǎo)流角測(cè)量方法，并設(shè)計(jì)了自動(dòng)化檢測(cè)裝置。導(dǎo)流角測(cè)量方法首先對(duì)通過葉片實(shí)物測(cè)量得到的數(shù)據(jù)進(jìn)行降噪處理，以排除噪聲點(diǎn)對(duì)后續(xù)工作的干擾，然后采用弦高差法精簡(jiǎn)了數(shù)據(jù)中的冗余點(diǎn)，以提高重構(gòu)工作的效率，在此基礎(chǔ)之上運(yùn)用切片技術(shù)，即采用一組平行平面與葉片的三維數(shù)據(jù)相切，得到了一系列的葉片截面輪廓數(shù)據(jù)，將上下表面的數(shù)據(jù)分離后，重構(gòu)了葉片的截面輪廓曲線，最后通過計(jì)算得到導(dǎo)流葉片的導(dǎo)流角。本文以測(cè)量得到的導(dǎo)流角數(shù)據(jù)為依據(jù)，對(duì)測(cè)量結(jié)果進(jìn)行了對(duì)比，分析了各組數(shù)據(jù)的平均值和方差，提出了同一個(gè)葉片和葉片間一致性的判定方法。分析結(jié)果表明葉片的導(dǎo)流角測(cè)量方法是可行的，可以有效地提高測(cè)量的精度，且可以多次測(cè)量，從而很好的解決偶然性誤差對(duì)測(cè)量結(jié)果的影響，在理論研究的基礎(chǔ)上，開發(fā)了檢測(cè)系統(tǒng)軟件，最后在總結(jié)全文工作的基礎(chǔ)上，指出了有待進(jìn)一步完成的工作。圖40幅，表19個(gè)，參考文獻(xiàn)50篇。關(guān)鍵詞喘振；導(dǎo)流葉片；導(dǎo)流角；曲線重構(gòu)；分類號(hào)TP29

簡(jiǎn)介：號(hào)密級(jí)公玨學(xué)號(hào)絲SQ3Q212P鏟IZ7口?！恢袊?guó)民用航空學(xué)院碩士學(xué)位論文機(jī)器視覺在航空發(fā)動(dòng)機(jī)內(nèi)窺檢測(cè)中的應(yīng)用研究研究生姓名工煎薟導(dǎo)師姓名翌云掛教援申請(qǐng)學(xué)位級(jí)別王堂亟所在院系扭童堂喧學(xué)科專業(yè)名稱昱熊劍昱皇撞割論文答辯日期2QQ生旦坦目2005年1月10曰中國(guó)民用航空學(xué)院碩L學(xué)位論文ABSTRACTINRECENTYEARS，COMPUTERVISIONTECHNOLOGYHASBEENGREATDEVELOPEDANDITALSOHASBEENANIMPORTANTRESEARCHSUBJECT。BYNOW，THETECHNIQUEOFHOLEDETECTIONISMATUREINIMAGECAPTURE，IMAGESHOW，ETCBUTHOLEDETECTIONDEVICEISFARFROMREACHINGTHEINTELLEGENTLEVEL，THEDETECTIONOFAVIATIONENGINEISBASELYBYHUMANEXPERIENCES，THEFAULTWASESTIMATEDSOTHEHUMANFACTORANDFAULTOFDETECTIONHAPPENED，ANDPEOPLECANNOTDOFAULTPREDICTION。THISSUBJECTISBASEDONTWINEYEVISIONPRICIPLE，ANDITWILLUSEIMAGEPROCESSINGTECHNIQUE，ANDGIVEGOODPARAMETERFSUCHASLENGTHOFCRACKLE，AREAOFERODE，SOITCANDOQUANTITIVEMEASUREMENT，ANDITALSOISTHEBASEWORKOFDEVELOPINGINTELLEGENTHOLEDETECTIONDEVICESOASTEALIZEINTELLIGENTOFFAULTDETECTIONTHISARTICLEWILLBUILDATWINEYECOMPUTERVISIONMODELOFPARALLELOPTICALAXIS，WEWILLADOPTAFLEXIBLEMETHODINCAMERACALIBREAIONWETESTTHEPRECISIONOFTHECALIBRATIONRESULTTHEINFLUENCEOFTHENOISEISDISPELLEDBYIMAGEPREDICTIONPROCESSING，EFFECTIVEAREAISENHANCEDWEALSOWI玨ANALIZEMEANFILTERANDMEDIANFILTER，ANDCOMPAREDIFFERENTIALOPERATOROFFRINGEDRAWINGTHEEFFECTIVEAREAISEXTRACED，THEAREAOFDAMAGEANDTHE3DCOORDINATESCANBECOMPUTEDBYSTEREOMATCH強(qiáng)EWHOLESYSTEMCALLBEDIVIDEINTOFOURPARTSIMAGECAPTURING。IMAGEPROCESSING，STEREOMATCHING，AND3DREBUILDINGTHISSUBJECTUSEDVEPROGRAMMINGLANGUAGETODEVELOPTHEMODULESATTHEENDOFTHISARTICLEWEINTRODUCEDTHESYSTEMPROGRAMMINGANDFUNCTIONS弱ERESEARCHOFTHESUBJECTCANDOSOMEGOODTHINGSTOIMPROVETHEHOLEDETECTIONTECHNIQUEANDTHEMODEMIZATIONOFCIVILAVIATIONKEYWORDSAVIATIONENGINEHOLEDETECTIONIMAGEPROCESSINGCOMPUTERVISIONL

簡(jiǎn)介：南京航空航天大學(xué)碩士學(xué)位論文民用航空維修工程能力評(píng)估及輔助決策支持系統(tǒng)開發(fā)研究姓名王敬敏申請(qǐng)學(xué)位級(jí)別碩士專業(yè)交通信息工程及控制指導(dǎo)教師王華偉20090201民用航空維修工程能力評(píng)估及輔助決策支持系統(tǒng)開發(fā)研究IIABSTRACTTHEMAINTENANCEISTHEFOUNDATIONOFENSURINGTHEINHERENTRELIABILITYSAFEFLIGHTOFTHEAIRCRAFTWITHTHEEXPINGOFTHECIVILAVIATIONAIRCRAFTTHEAGGRAVATIONOFAGINGAIRPLANESTHEDEMINTHEAIRCRAFT’SMAINTENANCEMARKETISLARGERLARGERTHEMAINTENANCEENGINEERINGABILITYISTHEABILITYTOCOMPLETETHEREPAIRTASKOFTHEAIRCRAFTWHICHHAVESIGNIFICANTMEANINGINENSURINGTHESAFEFLIGHTOFTHEAIRCRAFTALONGWITHTHEADVANCEOFTHECOMMERCIALAVIATIONTHEGLOBALCOMPETITIONOFTHEMAINTENANCEINDUSTRYISPROGRESSINGFASTERITISNECESSARYTOMAKESATHOUGHFULLRANGEOFEVALUATIONOFTHEDEVELOPMENTLEVELOFTHECURRENTCIVILMAINTENANCEINDUSTRYTHISEVALUATIONNOTONLYPROVIDESTHEDATASUPPTFTHEGOVERNMENTTOMAKEMACROSCOPICPOLICYBUTALSOPROVIDESTHEBASISFTHEDOMESTICMAINTENANCEENTERPRISESTOMAKEDEVELOPMENTPLANSTHEPAPERPRESENTSTHERESEARCHOFCIVILAVIATIONMAINTENANCEENGINEERINGCAPABILITYEVALUATIONTHEPRIMARYWKINCLUDES1THECONSTRUCTIONOFEVALUABLETARGETSYSTEMFCIVILAVIATIONMAINTENANCEENGINEERINGCAPABILITYHASBEENESTABLISHEDBASEDONTHECONSTRUCTIONPRINCIPLEOFTHEINDICATSYSTEMCONSIDEREDFROMTHEHUMANRESOURCESTHESUBSTANCERESOURCESTHEINFMATIONTECHNOLOGYRESOURCESTHEMANAGEMENTRESOURCESASWELLASTHEMAINTENANCECATEGYTHISPAPERHASFMULATEDTHETARGETEVALUATIONCRITERIAWHICHLAIDTHEFOUNDATIONFADEEPERRESEARCHINTHEFUTURE2THEDATACLEANINGTECHNOLOGYPREPROCESSINGTECHNIQUESHASBEENSTUDIEDTHEQUALITYOFDATAUNIFICATIONOFTARGETINFLUENCETHERESULTRELIABILITYOFEVALUATIONBUTTHEDATACLEANINGTECHNOLOGYPREPROCESSINGTECHNIQUESGUARANTEEIT3THEGRACOMPREHENSIVEEVALUATIONMODELCOMBININGAHPDSEVIDENCETHEYWASCONSTRUCTEDCONSIDERINGTHEIMPACTOFTARGETWEIGHTONEVALUATIONTHEDSEVIDENCETHEYHELPEDTODEPRESSTHEUNCERTAINTYOFTHETARGETWEIGHTBASEDONAHPAFTERWARDSTHEGREYRELATIONALCOMPREHENSIVEEVALUATIONMETHODWASUSEDTOCLEARTHEDIFFERENCESBETWEENTHEEVALUATIONOBJECTTHEREFERENCEOBJECTASWELLASROOMNEEDTOBEIMPROVED4ESTABLISHEDEVALUATIONSYSTEMOFMAINTENANCEMANAGEMENTWITHACEOFMAINTENANCEENGINEERINGCAPABILITYEVALUATIONTHEEXAMPLESHOWEDTHECOMPREHENSIVEEVALUATIONMODELISEFFECTIVEBASEDONTHEBSSTRUCTURETHISSYSTEMCREATEDTARGETSYSTEMDYNAMICREFLECTEDTHECONDITIONITSELFINTIMETHESYSTEMCANBEEXPEDTOOTHEREVALUATIONFIELDKEYWDMAINTENANCEENGINEERINGCAPABILITYDATACLEANINGTECHNOLOGYANALYTICHIERARCHYPROCESSDSEVIDENCETHEYGREYRELATIONALANALYSISEVALUATIONSYSTEM

簡(jiǎn)介：西北工業(yè)大學(xué)碩士學(xué)位論文學(xué)位研究生題目基于神經(jīng)網(wǎng)絡(luò)的航空發(fā)動(dòng)機(jī)控制研究作者學(xué)科專業(yè)指導(dǎo)老師榮立燁控制理論與控制工程李華聰二OO七年三月西安西北工業(yè)大學(xué)碩士學(xué)位論文ABSN‘ACTABSTRACTAEROEN百艙W貓ACON仕OUEDOBJCCT晰血如CHFBA士ILRES嬲COMPLICATEDWDRKINGCONDMONFORSUCHCONTROUEDOBJECT，CL嬲SICALFEEDBACKCON仃0L恤ORY鋤DOPTIMALCONTML也EORYCAN’911AR卸艙EOPTIMALP曲MLANCEMTHISPAP％ANEWTYPEOFMETLLOD山EPIDCOMR01B越EDON玳憂面璀TWORKISSTIL‘LIEDNISUSEDIN也EAEROENGINE由咖∞IEMCONTR01THEWORKOF也ISTHESISIS硒FOLLOW8MYWE托P托S眥DIN1LLISMESISONEISA刪LLTIVARIABLEDECOUPLINGPDCON缸OLSYS渤1B舔CDOND孫INDIAGONAL把叫姍TN吼砌NE咖RK，趾D位OTHCRISAMLLHIV耐ABLEDECOUPLIILGPMCON怕LSYSCEMBA∞D(zhuǎn)ONQDI心4NQU弱I碰AGONALR∞U玎C斌∞URALNETVVOFKN啪SDESI弘EDFOR姍C(jī)NGINEC徹血OLBYSTIIDYINGDRNN／QDRNN躚DGMDGRADICNTDCC饑TME也ODNW鵲IUUS仃ATED恤咖C嘶OF也CCON扛0U盯ANDTHC也EORYOF也EALGO舳M11LE螂U(xiǎn)NOFCOMPUTCRSINNDATIONS110WS恤TA刪右VARIABLEDECOUPLINGPIDCON血DLSYSTEMB舔ED∞D(zhuǎn)RNNH勰缸PE面衄ANCEOFDCCOUPLINGC印ABIL毋；0N吐屺OMERHAND，QDRNN，W11ICHB翹EDOND鼢小，H硒BETTERPE面M齜EOFDECOUPLINGCAPABIL姆TH躚DI心LN、L，ITHA1∞SIMPLCS岫LCTILREESPECIALLY，ALL廿AJDINGAIGORITHMOFD鼢礬MAYBELNILIZEDINQDRNN伽LYBY1IME懈FOMATIORLKEYWORDS搬OSPACEPR叩ILLSIONNEURALN釀ⅣORK；QUASIDIAGONALRCCU玎EMDECOUPLINGCON咖LSYSTEM；AEROEN舀NE；DIAGONALRCCU玎ENTNEI|RALN時(shí)WORK；MUMVARIABLECMLTROL；ⅡI

簡(jiǎn)介：電子科技大學(xué)UNIVERSITYOFELECTRONICSCIENCETECHNOLOGYOFCHINA碩士學(xué)位論文MASTERTHESIS論文題目基于性能退化數(shù)據(jù)的航空發(fā)動(dòng)機(jī)剩余壽命預(yù)測(cè)學(xué)科專業(yè)機(jī)械工程學(xué)號(hào)201321080153作者姓名劉帥君指導(dǎo)教師陳中柘副教授REMAININGUSEFULLIFEPREDICTIONOFAEROENGINEBASEDONPERFMANCEDEGRADATIONDATAAMASTERTHESISSUBMITTEDTOUNIVERSITYOFELECTRONICSCIENCETECHNOLOGYOFCHINAMAJMASTEROFENGINEERINGAUTHLIUSHUAIJUNADVISASSOCIATEPROFCHENZHONGZHESCHOOLSCHOOLOFMECHATRONICSENGINEERING

簡(jiǎn)介：中圖分類號(hào)U4641論文編號(hào)102870214S104學(xué)科分類號(hào)080204碩士學(xué)位論文航空活塞發(fā)動(dòng)機(jī)控制器實(shí)物在回路仿真系統(tǒng)設(shè)計(jì)研究生姓名邊文超學(xué)科、專業(yè)航空宇航推進(jìn)理論與工程研究方向系統(tǒng)控制與仿真指導(dǎo)教師于兵南京航空航天大學(xué)研究生院能源與動(dòng)力學(xué)院二О一三年十二月NANJINGUNIVERSITYOFAERONAUTICSASTRONAUTICSTHEGRADUATESCHOOLCOLLEGEOFENERGYPOWERENGINEERINGRESEARCHONHARDWAREINLOOPSIMULATIONSYSTEMOFCONTROLLERFANAVIATIONPISTONENGINEATHESISINAEROSPACEPROPULSIONTHEYENGINEERINGBYBIANWENCHAOADVISEDBYLECTURERYUBINGSUBMITTEDINPARTIALFULFILLMENTOFTHEREQUIREMENTSFTHEDEGREEOFMASTEROFENGINEERINGDECEMBER2013

簡(jiǎn)介：復(fù)旦大學(xué)博士后學(xué)位論文航空發(fā)動(dòng)機(jī)轉(zhuǎn)靜子碰摩故障研究多剛體動(dòng)力學(xué)仿真軟件研發(fā)姓名楊積東申請(qǐng)學(xué)位級(jí)別博士后專業(yè)工程力學(xué)指導(dǎo)教師鄭鐵生20040101ABSTRACTTHEREPORTCONSISTSOFTWOPARTS，ONETALKSABOUTTHERESEARCHINTUBPRONEMSOFAEROENGINEWHICHBELONGSTOTHEFIELDOFROTORDYNAMIESANDNONLINEARDY，NAMICS；THEOTHERISTHEDEVELOPMENTWORKOFMULTIRIGIDBODYDYNAMICSSIMULATIONSOFTWAREINTHEFIELDOFMECHANISMANDCOMPUTERSIMULATIONSYSTEMIRESEARCHOILRUBPROBLEMOFROTORSYSTEMINAEROENGINETHEMBPROBLEMOFROTORSYSTEMINAEROENGINEISTHEKEYTECHNOLOGYWHICHRESTRICTITSDEVELOPMENTTOHIGHERSPEED，MASSLESS，BIGGERPOWERANDHEAVYLOADINTHISPAPER，THERUBPROBLEMOFROTORCASESYSTEMISDEEPLYSTUDIED，ANDTHERESULTNOTONLYHASTHEORETICALSIGNIFICANCEBUTCARLPROVIDETECHNICALGUIDEFORTHEDESIGNDEPARTMENTSEVERALNONLINEARRUBFORCEMODELSMOSTINUSEAREANALYZEDANDEXPLAINEDTOAPPROACHINNATECHARACTERANDINTERRELATIONOFTHOSEMODALSTHEBESTRUBFOROEMODELISDETERMINEDBYUSINGNUMERICALSIMULATIONANALYSISANDCOMPARINGTHEINFLUENCEOFDIFFERENTRUBFORCEMODELSONTHERESPONSEWITLLTHESALILESYSTEMPARAMETERTHEANNULARRUBSOLUTIONOFJEFFCOTTROTORSYSTEMISANALYZEDINTHEORYTHESOLUTION’SEXISTINGCONDITIONASWELLASITSEVOLUTIONRULEASSRESULTOFTHECHANGEOFPARAMETERISPROBEDTHEVALIDITYOFTHERESEARCHISPROVEDBYWAYOFNUMERICALSIMULATIONTHESAMEMETHODISUSEDTOSHOWANDEXPLORETHENONLINEARMOVEMENTOFRUBROTORUNDERTHENORMALCONDITIONWHICHESTABLISHATHEORETICALFOUNDATIONFORMULTIFREEDOMROTORSYSTEMRESEARCH，THESOLUTIONOFRUBPROBLEMINTHEMULTIFREEDOMROTORSYSTEM，WHICHISSUITABLEFORPRACTICALENGINEERING，ISDESIGNED，ASOFTWAREPACKAGEONTHESTUDYISCOMPLETEDTOSERVETHEREALROTORSYSTEMDESIGNIIRESEARCHONMULTIRIGIDBODYSYSTEMDYNAMICSSIMULATIONSOFTWAREPACKAGEMULTIRIGIDBODYSYSTEMSIMULATIONISTHECOREOFVIRTUALSIMULATIONOFMECHANISMVIRTUALPROTOTYPINGTECHNOLOGYDEVELOPEDONTHEBASISOFMULTIRIGID_BODYSYSTEMSIMULATIONANDPAIDATTENTIONSBYTHEENGINEERINGFIELDMUSTBEBYTHEAIDOFEMULATORWITHFRIENDLYSCOPE，COMPLETEFUNCTIONSANDSTABLEPERFORMANCETHENUMERICALMODELOFMECHANISMSYSTEMMUSTBEESTABLISHEDTOMEETTHENEEDSOFCOMPUTERSTYLIZATIONBECAUSEITISTHEPRECONDITIONOFTHEDEVELOPMENTOFEMULATORACCORDINGTOTHECHARACTERISTICOFTHENUMERICALMODEL，ALLEFFECTIVEALGORITHMWITHHIGHEFFICIENCY，STABILITYANDHIGHACCURACYDEALINGISPROVIDEDTOFINDTHEKINETICSANDDYNAMICSRESPONSEINPUTANDOUTPUTWAYOFCADSYSTEMWITHFRIENDLYSCOPEANDHIGHDEGREEAUTOMATINGABILITYISOFFEREDBYUSINGCOMPUTERVISUALIZEDTECHNOLOGYANDANIMATEDTECHNOLOGYTOMAKEENGINEERSDEVOTEDTHEMSELVESTOCREATIVEDESIGNOFMECHANISMSYSTEMSKEYWORDSAEROENGINE，ROTOR，RUB，NONLINEAR，MULTIRIGIDRBODY，SIMULATION

簡(jiǎn)介：西北工業(yè)大學(xué)碩士學(xué)位論文航空電子系統(tǒng)中的光纖通道技術(shù)研究姓名張偉申請(qǐng)學(xué)位級(jí)別碩士專業(yè)系統(tǒng)工程指導(dǎo)教師吳勇20060301西北工業(yè)大學(xué)碩士學(xué)位論文ABS舡毽CLABSTRACTWITLLTHERAPIDDEVELOPMENTOFMODEMSEMICONDUCTORRADARANDNETWORKTECHNOLOGYMILITARYAVIONICSSYSTEMHASENTEREDTOANEWEPOCHTHENEWAVIONICSCONTAINHIGLLDATARATESELLSORS，PARALLELPROCESSORSANDSHAREDMEMORYWJTLLHIGHLEVELSOFINTEGRATIONMILSTD1553BSERVEASSTANDARDOFDATACOMMUNICATIONSINMANYMILITARYENVIRONMENTSCALLNOTSATISFYTHENEEDSOFMODEMSYSTEM，OTHERWISETOSTIPULATEFORANEWSTANDARDCAUSEHI曲COST，LONGPERIODANDSINGLEDUSEDTHESOLUTIONISTOFINDACOMMERCIALOFFTHESHELFTECHNOLOGYANDDONECESSARYMODIFICATIONTOADAPTTOAVIONICSENVIRONMENTAFTERCOMPAREMULTITUDINOUSHI曲SPEEDNETWORKTECHNOLOGYTHATWIDELYBSEINCOMMERCIAL，THISTHESISCHOOSESTHEFIBRECHANNELWHICHISTHEFORCEFULCANDIDATEOFTHENEXTGENERATIONAVIONICSCOMMUNICATIONNETWORKSTANDARDASTHERESEARCHTARGETFIRSTLYANALYZESTHEREQUIREMENTSOFNEXTGENERATIONAVIONICSANDTHEADVANTAGEOFTHEFIBRECHANNEL，THOROUGHLYSTUDYFCFS，F(xiàn)CPH，F(xiàn)CALANDFCAEINTRODUCETHEPROTOCOLMODELTOPOLOGYSTRUCTUREANDSERVICECLASSOFTHEFIBRECHANNELEMPHASISONTHEPROCESSOFFIBRECHANNELARBITRATEDLOOPNETWORKBASEONALLABOVEWORKANDCOMBININGWITHTHESTRUCTUREOFNEXTGENERATIONAVIONICSACOMPUTERSIMULATIONMODELWASDEVELOPEDTHEOPNETMODELERTOOLFROM0PNET’INCWASUSEDTOMODELTHECOMPONENTSOFANADVANCEDAVIONICSSYSTEM，ALSOTHETHESISEVALUATESTHEMODELONSUPPOSEDATASTREAMTOEDUCETHETHROUGHPUT，LATENCYANDETOECREDITTHERESULTSOFTHESIMULATIONDEMONSTRATEDTHATFIBRECHANNELMEETSALLTHEPERFORMANCEREQUIREMENTSOFANAVIONICSJNTERCORMECTKEYWORDSAVIONICSSYSTEMCOMMUNICATIONNETWORKFIBRECHANNELARBITRATEDLOOPNETWORKEVALUATELL

簡(jiǎn)介：西北工業(yè)大學(xué)碩士學(xué)位論文新型航空直線直流電動(dòng)機(jī)驅(qū)動(dòng)控制系統(tǒng)研究姓名巫春玲申請(qǐng)學(xué)位級(jí)別碩士專業(yè)電力電子與電力傳動(dòng)指導(dǎo)教師馬瑞卿20040301西北工業(yè)大學(xué)碩士論文ABSTRACTTHETHESISROOTSINTHEITEMSUPPORTEDBY“FIFTEEN“AVIATIONFUNDS,NEWTYPEAERONAUTICLINEARDCMOTORLDCM,STUDYITSCLASSES,CHARACTERISTICSANDWORKPRINCIPLE,MAINLYRESEARCHESTHEDRIVEANDCONTROLTECHNIQUEOFAERONAUTICLINEARDCSTEPMOTORLDCSMUSINGINEMERGENCYDISCHARGINGOILVALVEONAIRPLANETHEPAPERDISCUSSESTHEWORKPRINCINPLEOFLDCSM,ADOPTSSINGLECHIPASCORECONTROLCELL,PUTSFORWARDTWOKINDSOFCONTROLSCHEMES,ANALYZESANDSTUDYTHETECHNIQUESCHEME,HARDWAREANDSOFTWAREDESIGNOFEACHCONTROLSYSTEMSEPARATELYINDETAIL,ONTHEBASISOFTHECENTRALIZEDWINDINGELECTRIFYINGTRAITANDPULSESTEPPINGCONTROLMETHODOFTWOPHASE飾BRIDLINEARDCSTEPMOTORHDCLSMACCORDINGTOTHESYSTEMTECHNOLOGYREQUIRE,ADOPTINGSINGLECHIPREALIZEOPENLOOPDIGITALCONTROLOFHDCLSMUSINGV/FCONVERSIONANDCOMPLEXKEYCONTROLMETHODREALIZEDIGITALSETTINGOFSYSTEMPARAMETER,SUCHASVELOCITYUSINGMICROSTEPPINGCONTROLINSURETHEMOTORRUNNINGMORESMOOTHLYADOPTINGDEBASINGSPEEDCONTROLMETHODTOELIMINATETHEMECHANICALIMPACTOFDISTANCETERMINATIONEFECTIVELYATTHESAMETIME,ANALYZINGMAINPOWERCIRCUIT,DRIVECIRCUITANDPROTECTCIRCUITOFSYSTEM,COMPLETINGHARDWAREDESIGNANDFACTUREANDSOFTWAREPROGRAMMINGANDDEBUGGINGATLAST,MAKINGAWHOLETESTINHYBRIDROTARYSTEPMOTORTHEEXPERIMENTRESULTINDICATESTHATTHISCONTROLSYSTEMREACHESTHEQUALITIESREQUIREDANDRUNSMOOTHLYALSOMOREOVER,THEAERONAUTICLINEARDCMOTORCONTROLSYSTEMNOTONLYCANINSTEADTHEDRIVEMOTOROFEMERGENCYDISCHARGINGOILVALVE,BUTALSOCANBEUSEDINSOMELOWPOWERELECTROMOTIONMACHINEMAKINGLINEARLOCOMOTIONTHEMOTOROWNSEXTENSIVEAPPLICATIONFOREGROUNDPREFERABLYKEYWORDSLINEARDCMOTORLDCM,HYBRIDLINEARDCSTEPPINGMOTORFILDCSM,SINGLECHIP,SUBALLOCATIONCONTROL,EMERGENCYDISCHARGINGOILVALVE

簡(jiǎn)介：碩士學(xué)位論文碩士學(xué)位論文航空發(fā)動(dòng)機(jī)盤鼓式轉(zhuǎn)子振動(dòng)引起的疲勞問題研究INVESTIGATIONONFATIGUEPROBLEMCAUSEDBYVIBRATIONOFAEROENGINEDRUMROTOR董延陽董延陽哈爾濱工業(yè)大學(xué)哈爾濱工業(yè)大學(xué)2015年6月CLASSIFIEDINDEXV21552UDC6211DISSERTATIONFORTHEMASTERDEGREEINENGINEERINGINVESTIGATIONONFATIGUEPROBLEMCAUSEDBYVIBRATIONOFAEROENGINEDRUMROTORCANDIDATEDONGYANYANGSUPERVISORPROFLIUZHANSHENGACADEMICDEGREEAPPLIEDFORMASTEROFENGINEERINGSPECIALITYPOWERMACHINERYANDENGINEERINGAFFILIATIONENERGYSCIENCEANDENGINEERINGDATEOFDEFENCEJUNE,2015DEGREECONFERRINGINSTITUTIONHARBININSTITUTEOFTECHNOLOGY

簡(jiǎn)介：基于機(jī)器視覺的航空儀表自動(dòng)識(shí)別研究作者李澤本指導(dǎo)教師王長(zhǎng)元教授申請(qǐng)學(xué)位學(xué)科計(jì)算機(jī)應(yīng)用技術(shù)西安工業(yè)大學(xué)2006年3月AEROINDICATORIMAGEAUTOIDENTIFYRESEARCHBASE0NMACHINEVERSIONDISCIPLINECOMPUTERAPPLICATIONTECHNIQUESTU岫吲鯽TURE孝F幸辱SUPERVISORSIG岫TU掀多4；U，YABSTRACTWITHTHERAPIDDEVELOPMENTOFCOMPUTERTECHNOLOGYRECENTLYTHECOMPUTERVISUALTECHNOLOGYISWIDELYUSEDINTHEFIELDSOFINDUSTRIALAUTOMATIONINDUSTRIALONLINETEST，PRECISIONMEASUREMENTANDETCASONEOFTHEINSTRUMENTSTHEAVIATIONGAUGEWITHPOINTERISVERYFREQUENTLYUSEDINTHEAVIATIONINDUSTRYATPRESENTTRADITIONALLYHUMANEYESJUDGETHERESULTOFAVIATIONGAUGEHOWEVERSOMEOFTHESUBJECTIVEFACTORSSUCHASDIFFERENTOBSERVATIONANGLE，DIFFERENTOBSERVATIONDISTANCEANDPERSON’SFATIGUENESSMAYHAVEEFFECTONTHEVALUES，WHICHNOTONLYRESULTSINERRORLOWRELIABILITYBUTALSOLOWEFFICIENCYANDHIGHCOSTOFLABORITANALYZEDTHEPARAMETEROFGEOMETRYFEATUREOFTHEAVIATIONGAUGEWITHPOINTERANDALSOANALYZEDTHECOMPLEXITYANDANTIINTERFERENCEOFCALCULATIONBYHOUGHTRANSL8TIONARITHMETICINTHEPROCESSOFGETTINGPARAMETEROFTHEAVIATIONGAUGETHENFROMTHISCONCLUSION，ITPUTFORWARDSOMEOPTIMALSUGGESTIONSANDIMPROVEMENTFROMTHECOMPLEXITYOFTIMEANDSPACETHEOBJECTORIENTEDPROGRAMDESIGNINGIDEAISADOPTEDINTHEAVIATIONGAUGEVISUALTESTSYSTEMSOFTWAREDESIGNATTHESAMETIMEONTHEPLATFORMOFVISUALC60，AVIATIONGAUGE、ⅣIMPOINTERISDEVELOPEDAFTERMANYEXPERIMENTS，ITISIMPROVEDTHATTHISSYSTEMISREALLYFEASIBLEINTHEAUTOMATICRECOGNITIONOFTHEGAUGEANDWHICHHASPROVEDTHATTHEAUTOMATICRECOGNITIONCANREALIZEFROMBOTHINTHEORYANDINPRACTICEINAWORDTHESTUDYOFAUTOMATICRECOGNITIONOFTHEAVIATIONGAUGEBYTHEWAYOFCOMPUTERVISUALTESTTECHNOLOGYISATOTALLYNEWMETHODATTHESAMETIME，THISRESEARCHHASPROMOTEDTHEAPPLICATIONOFCOMPUTERVISUALTESTTECHNOLOGYINTHEFIELDOFPRECISIONMEASUREMENTKEYWORDSIMAGEPROCESSING；AVIATIONGAUGEWITHPOINTER；HOU曲TRANSLATIONCOMPUTERVISIONTECHNOLOGY；AUTOMATICRECOGNITION；

簡(jiǎn)介：分類號(hào)LDCR8／坫涉中國(guó)民用航空學(xué)院碩士學(xué)位論文航空發(fā)動(dòng)機(jī)轉(zhuǎn)子實(shí)驗(yàn)臺(tái)振動(dòng)測(cè)試分析及軟件實(shí)現(xiàn)研究生姓名導(dǎo)師姓名申請(qǐng)學(xué)位級(jí)別一玉蘭亟～爨在陵系題叁堂醚趔筮主奎盤塑夔攮學(xué)科專業(yè)名稱藍(lán)窒生筮撞迸理詮當(dāng)正攫論文答辯曩期9么篷羔塑叢塞。204年12月20疑中國(guó)民掰航宅學(xué)院頸L6學(xué)位論文ABSTLACLNOWADAYS，THEOLDMAILLTENANCEMODEWHICHMAINTAINSAEROENGINESACCORDINGTOTHEHATIMEIS∞MINGTO也EEND南RLTSEXTR∞F擊撒皤LOSSBOTH強(qiáng)ECO磚Ⅸ鞋YAND￡I糯E，MEANWHILE，ANEWIYDEVELOPEDMAINTENANCEMODEHASBEENIMPLEMENT。DONAEROENGINES，WHICHBF；NG稻FWARDST殛T礅EAEFOEN番玨ESSHO玨LDBEMA主NT8L矬EDACCO磁法G協(xié)主TS豫ALCIRCUMSTANCESOITISIMPORTANTTOTAKET11EMEASUREOFREALTIMEVIBRATIONFORANALYZINGANDDIAG攤OSINGTK強(qiáng)ULTS西AEF。一E矬GNETHES雒ING一顰OF譙E撼奄電掛GINE∞溆重EST南EDOFO醢FINSTITUTEISTESPONDTHISTHINKINGWITHTHERAPIDLYDEVELOPMENTOFCONLPUTERANDSONWARE靶EHNIQUEV南精TIONM￡ASURINGA狂DA凇LYZINGFAULTSWI搬VI豫豫LINSLRUME娥HASBECOMET＆DEVELOPMENTTRENDOFVIHRATIONTESTFIELD弱THE也ESISDEVELOP、INUALINS拄UMENTSOFMULTICH勰NELV遜『AIONMEASURERNENTANDANAIYSISSYSTEMBASEDONPCASHARDWAREWORKBENCH，LABORATORYVIRTUALINSTRUMENTWORKBELKHLABVIEWDEVELOPEDBYAMERICANATIONALINSTN塒ENTSCO王PORATIONASDEVEIOPMENTSOFTWARE，ESSENTIALSENSOR’SIGNA】CONDITIONERANDDATAACQUISITIONCARDT瓢ESYSTEMCALLCONTROIDATAACQUISITION，PROCESSINGANDDISPLAYMCOMPUTEKTOMEET毫HEDEMANDOFVBRATIONMEASUREMENTANDANALYSISFIRSTSIMPLEINTRODUCTIONONVIRTUALINSTRUMENTSISMADEINMYTHES矗SECOND，THECOMPOSITIONOFVIBRALIONMEASUREMENTSYSTEMANDTHETHEORYOFVIBRATIORLSIGNALANALYSISAFOANALYZEDFINALLYIEXPLAINTHEGENERALPROGRAMOFDESIGNINGANDREALIZATIONTHISSYSTEM，ANDUTMZEROTORLABORATO“TESTBEDTOSIMULATEMECHANICALT∞UBLE協(xié)EST岱ISSO佼、張RENOTONLYCANTHESYSTEMDATAACQUISITIONDISPIAYANDANALYSISTOTHEVARIOUSKINDSOFSIGNALS，BUTITCANSAVEA醚瓣艇THEDAT鑫WHIE圭鞭VEDBEFORO秘佗SO佼W雒ESYSE糙S魏OULDINEL疆DE毛量LESEFHNCTIONDIGITAL矗LTER’WINDOWIN島AUTOCORRELATIONFUNCTIONANDCROSSCORRELATION脅CTION，輔TOPO敝FSPEC鐫M，E糟SSPOW。R警EET純M，E印S鼬建黻鑫LYSISBAS舞。鞋珂F鑫鰱FO濺材1YANSFENKEYWORDSVIRTUAIINSFRUMENTS；VIBRATIONTEST；AEROENGINE；ROTORTESTBED

簡(jiǎn)介：娜介次掌碩士學(xué)位論文寥論文題目航空發(fā)動(dòng)機(jī)機(jī)匣包容性的試驗(yàn)研究與負(fù)真讓算作者姓名指導(dǎo)教師學(xué)科專業(yè)所在學(xué)院提交日期浙江大學(xué)碩士學(xué)位論文摘要本文主要研究航空發(fā)動(dòng)機(jī)機(jī)匣對(duì)斷裂葉片的包容性問題。在年實(shí)驗(yàn)基礎(chǔ)上，本文又對(duì)四組不同尺寸單平板葉片和機(jī)匣的高速撞擊模型進(jìn)行了實(shí)驗(yàn)研究，得到四組實(shí)驗(yàn)結(jié)果。在四組實(shí)驗(yàn)中，葉片均被機(jī)匣成功包容。葉片在機(jī)匣上撞擊出不同數(shù)目、深淺的凹坑。對(duì)于較高轉(zhuǎn)速下飛斷的長(zhǎng)葉片，機(jī)匣上形成的第二個(gè)凹坑最深，葉片也卷曲厲害而對(duì)于低速下飛斷或者較短葉片，則一般會(huì)發(fā)生三次撞擊，其中第一個(gè)凹坑最深，而葉片則沒有很大的變形。葉片變形對(duì)撞擊過程中機(jī)匣的受力情況影響很大。結(jié)合年和年的實(shí)驗(yàn)研究數(shù)據(jù)，選取其中的四組，利用軟件建立計(jì)算模型，對(duì)實(shí)驗(yàn)過程進(jìn)行仿真模擬。計(jì)算結(jié)果和實(shí)驗(yàn)結(jié)果有較好的吻合，真實(shí)再現(xiàn)了葉片撞擊機(jī)匣的過程，成功的預(yù)測(cè)了機(jī)匣的包容能力，驗(yàn)證了可使用仿真計(jì)算進(jìn)行包容能力校核或設(shè)計(jì)新型包容結(jié)構(gòu)。根據(jù)結(jié)構(gòu)塑性動(dòng)力學(xué)響應(yīng)分析和葉片變形過程分析，指出葉片卷曲的形狀對(duì)凹坑的分布起到?jīng)Q定性作用，并對(duì)影響葉片卷曲形狀的飛斷轉(zhuǎn)速、抗彎剛度等參數(shù)進(jìn)行了考察。根據(jù)撞擊過程中能量的分配與吸收，將撞擊過程分解為幾個(gè)階段，進(jìn)一步弄清了葉片高速撞擊機(jī)匣的機(jī)理。本文建立的計(jì)算模型適用于不同材料、不同轉(zhuǎn)速、不同結(jié)構(gòu)的包容性問題，為進(jìn)行機(jī)匣包容性研究提供了新方法，降低了實(shí)驗(yàn)費(fèi)用和研發(fā)周期，對(duì)發(fā)動(dòng)機(jī)機(jī)匣結(jié)構(gòu)的改進(jìn)研究有一定的實(shí)際意義。關(guān)鍵詞航空發(fā)動(dòng)機(jī)包容性葉片塑性動(dòng)力學(xué)數(shù)值仿真