簡介：電子科技大學UNIVERSITYOFELECTRONICSCIENCETECHNOLOGYOFCHINA碩士學位論文MASTERTHESIS論文題目基于性能退化數(shù)據(jù)的航空發(fā)動機剩余壽命預測學科專業(yè)機械工程學號201321080153作者姓名劉帥君指導教師陳中柘副教授REMAININGUSEFULLIFEPREDICTIONOFAEROENGINEBASEDONPERFMANCEDEGRADATIONDATAAMASTERTHESISSUBMITTEDTOUNIVERSITYOFELECTRONICSCIENCETECHNOLOGYOFCHINAMAJMASTEROFENGINEERINGAUTHLIUSHUAIJUNADVISASSOCIATEPROFCHENZHONGZHESCHOOLSCHOOLOFMECHATRONICSENGINEERING

簡介：中圖分類號U4641論文編號102870214S104學科分類號080204碩士學位論文航空活塞發(fā)動機控制器實物在回路仿真系統(tǒng)設(shè)計研究生姓名邊文超學科、專業(yè)航空宇航推進理論與工程研究方向系統(tǒng)控制與仿真指導教師于兵南京航空航天大學研究生院能源與動力學院二О一三年十二月NANJINGUNIVERSITYOFAERONAUTICSASTRONAUTICSTHEGRADUATESCHOOLCOLLEGEOFENERGYPOWERENGINEERINGRESEARCHONHARDWAREINLOOPSIMULATIONSYSTEMOFCONTROLLERFANAVIATIONPISTONENGINEATHESISINAEROSPACEPROPULSIONTHEYENGINEERINGBYBIANWENCHAOADVISEDBYLECTURERYUBINGSUBMITTEDINPARTIALFULFILLMENTOFTHEREQUIREMENTSFTHEDEGREEOFMASTEROFENGINEERINGDECEMBER2013

簡介：復旦大學博士后學位論文航空發(fā)動機轉(zhuǎn)靜子碰摩故障研究多剛體動力學仿真軟件研發(fā)姓名楊積東申請學位級別博士后專業(yè)工程力學指導教師鄭鐵生20040101ABSTRACTTHEREPORTCONSISTSOFTWOPARTS，ONETALKSABOUTTHERESEARCHINTUBPRONEMSOFAEROENGINEWHICHBELONGSTOTHEFIELDOFROTORDYNAMIESANDNONLINEARDY，NAMICS；THEOTHERISTHEDEVELOPMENTWORKOFMULTIRIGIDBODYDYNAMICSSIMULATIONSOFTWAREINTHEFIELDOFMECHANISMANDCOMPUTERSIMULATIONSYSTEMIRESEARCHOILRUBPROBLEMOFROTORSYSTEMINAEROENGINETHEMBPROBLEMOFROTORSYSTEMINAEROENGINEISTHEKEYTECHNOLOGYWHICHRESTRICTITSDEVELOPMENTTOHIGHERSPEED，MASSLESS，BIGGERPOWERANDHEAVYLOADINTHISPAPER，THERUBPROBLEMOFROTORCASESYSTEMISDEEPLYSTUDIED，ANDTHERESULTNOTONLYHASTHEORETICALSIGNIFICANCEBUTCARLPROVIDETECHNICALGUIDEFORTHEDESIGNDEPARTMENTSEVERALNONLINEARRUBFORCEMODELSMOSTINUSEAREANALYZEDANDEXPLAINEDTOAPPROACHINNATECHARACTERANDINTERRELATIONOFTHOSEMODALSTHEBESTRUBFOROEMODELISDETERMINEDBYUSINGNUMERICALSIMULATIONANALYSISANDCOMPARINGTHEINFLUENCEOFDIFFERENTRUBFORCEMODELSONTHERESPONSEWITLLTHESALILESYSTEMPARAMETERTHEANNULARRUBSOLUTIONOFJEFFCOTTROTORSYSTEMISANALYZEDINTHEORYTHESOLUTION’SEXISTINGCONDITIONASWELLASITSEVOLUTIONRULEASSRESULTOFTHECHANGEOFPARAMETERISPROBEDTHEVALIDITYOFTHERESEARCHISPROVEDBYWAYOFNUMERICALSIMULATIONTHESAMEMETHODISUSEDTOSHOWANDEXPLORETHENONLINEARMOVEMENTOFRUBROTORUNDERTHENORMALCONDITIONWHICHESTABLISHATHEORETICALFOUNDATIONFORMULTIFREEDOMROTORSYSTEMRESEARCH，THESOLUTIONOFRUBPROBLEMINTHEMULTIFREEDOMROTORSYSTEM，WHICHISSUITABLEFORPRACTICALENGINEERING，ISDESIGNED，ASOFTWAREPACKAGEONTHESTUDYISCOMPLETEDTOSERVETHEREALROTORSYSTEMDESIGNIIRESEARCHONMULTIRIGIDBODYSYSTEMDYNAMICSSIMULATIONSOFTWAREPACKAGEMULTIRIGIDBODYSYSTEMSIMULATIONISTHECOREOFVIRTUALSIMULATIONOFMECHANISMVIRTUALPROTOTYPINGTECHNOLOGYDEVELOPEDONTHEBASISOFMULTIRIGID_BODYSYSTEMSIMULATIONANDPAIDATTENTIONSBYTHEENGINEERINGFIELDMUSTBEBYTHEAIDOFEMULATORWITHFRIENDLYSCOPE，COMPLETEFUNCTIONSANDSTABLEPERFORMANCETHENUMERICALMODELOFMECHANISMSYSTEMMUSTBEESTABLISHEDTOMEETTHENEEDSOFCOMPUTERSTYLIZATIONBECAUSEITISTHEPRECONDITIONOFTHEDEVELOPMENTOFEMULATORACCORDINGTOTHECHARACTERISTICOFTHENUMERICALMODEL，ALLEFFECTIVEALGORITHMWITHHIGHEFFICIENCY，STABILITYANDHIGHACCURACYDEALINGISPROVIDEDTOFINDTHEKINETICSANDDYNAMICSRESPONSEINPUTANDOUTPUTWAYOFCADSYSTEMWITHFRIENDLYSCOPEANDHIGHDEGREEAUTOMATINGABILITYISOFFEREDBYUSINGCOMPUTERVISUALIZEDTECHNOLOGYANDANIMATEDTECHNOLOGYTOMAKEENGINEERSDEVOTEDTHEMSELVESTOCREATIVEDESIGNOFMECHANISMSYSTEMSKEYWORDSAEROENGINE，ROTOR，RUB，NONLINEAR，MULTIRIGIDRBODY，SIMULATION

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

簡介：西北工業(yè)大學碩士學位論文新型航空直線直流電動機驅(qū)動控制系統(tǒng)研究姓名巫春玲申請學位級別碩士專業(yè)電力電子與電力傳動指導教師馬瑞卿20040301西北工業(yè)大學碩士論文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

簡介：電子科技大學碩士學位論文基于PCI總線的航天測控數(shù)據(jù)錄取系統(tǒng)的設(shè)計與實現(xiàn)姓名熊璐申請學位級別碩士專業(yè)通信與信息系統(tǒng)指導教師周先敏20060401A8STRAETA8STRAE了WITHTHEDEVELOPMENTOFAEROSPACEINDUSTRY，THEMULTIFUNCTIONALTERMINALEQUIPMENTFORBASEBANDHASBEENDEVELOPEDINRECENTYEARSTHEHIGHSPEEDDATAFLOWTRANSMITTEDFROMTHESATELLITESISRECEIVEDBYTHESATELLITECOMMUNICATIONEARTHSTATIONANDTHENSENTTOTHEDATATERMINALCENTER，THESPEEDOFWHICHISUPTOHUNDREDSOFMEGABYTESBAUDRATEINORDERTORECEIVETHEDATACORRECTLYANDSTOREITINCOMPUTERFORANALYSISANDPROCESS，AKINDOFSPACETRACKINGDATARECORDINGSYSTEMBASEDONPCIBUSISDESIGNEDANDREALIZEDINTHISDISSERTATION，WHICHENHANCETHESPACETRACKINGSYSTEM’SINTEGRALITYTHEAUTHOR’SMAINWORKSASFOLLOW1ACCORDINGTOTHETECHNICALTARGETOFTHESYSTEM，DESIGNTHEWHOLESYSTEMBYANALYZESTWODIFFERENTMETHODSOFHIGHSPEEDDATARECORDING2DESIGNTHEHARDWARESYSTEM，WHICHFOCUSOILTHESELECTIONOFCHIPSONTHEPCICARD，THEPOWERNETWORK，THESPEEDANDCAPACITYOFTHESTORAGE，THEPCIINTERFACEANDSO011ATTHESAMETIMEDISCUSSEDSOMEPROBLEMSWHICHNEEDTOBEPAIDATTENTIONTOWHENDESIGNTHEPCBBOARDINORDERTOREDUCEEMIANDIMPROVETHEDIGITALCIRCUIT’SPERFORMANCE3REALIZETHEINTERFACEBETWEENPCI9054ANDTHEPCTBUS，INCLUDINGTHEBUSARBITRATION，READANDWRITEOFTHEREGISTERS，THECONFIGURATIONOFTHEEEPROM，THEDMATRANSFER，INTERRUPTRESPONSEANDSOON，4COMPLETETHEDESIGNOFSYSTEM’SLOGICFUNCTIONWITHFPGATHESDRAM’SCONTROLLERANDPINGPONGOPERATIONISSTUDIED，ANDTHEDATA’SCONTINUOUSSTORAGEISALSEALIZED5。THEWDMDEVICEDRIVERHASBEENDEVELOPEDINDRIVERSTUDIO’SDEVELOPMENTENVIRONMENT，WHICHCANMAKETHEHARDWARESYSTEMWORKCORRECTLYTHESCATTER／GATHERDMA’SDEVICEDRIVERISSTUDIEDINDETAILANDTHEUSERAPPLICATION’SDESIGNAPPROACHISALSOPRESENTEDWITHTHEWDMDRIVELTHEUSERCANCOMMUNICATEWITHTHEHARDWAREANDGUARANTEETECEIVEANDSTORETHEDATAINCOMPUTER’SHARDDISKCORRECTLY。IJ

簡介：碩士學位論文碩士學位論文考慮控制與角速度受限的航天器姿態(tài)非線性滑?？刂芅ONLINEARSLIDINGMODEBASEDATTITUDECONTROLOFSPACECRAFTSUBJECTTOCONTROLANGULARVELOCITYLIMITS李理李理哈爾濱工業(yè)大學哈爾濱工業(yè)大學2015年7月CLASSIFIEDINDEXV4482UDC62978DISSERTATIONFTHEMASTERDEGREEINENGINEERINGNONLINEARSLIDINGMODEBASEDATTITUDECONTROLOFSPACECRAFTSUBJECTTOCONTROLANGULARVELOCITYLIMITSCIDATELILISUPERVISPROFHUQINGLEIACADEMICDEGREEAPPLIEDFMASTEROFENGINEERINGSPECIALITYCONTROLSCIENCEENGINEERINGAFFILIATIONDEPTOFCONTROLSCIENCEENGINEERINGDATEOFDEFENCEJULY2015DEGREECONFERRINGINSTITUTIONHARBININSTITUTEOFTECHNOLOGY

簡介：碩士學位論文碩士學位論文航空發(fā)動機盤鼓式轉(zhuǎn)子振動引起的疲勞問題研究INVESTIGATIONONFATIGUEPROBLEMCAUSEDBYVIBRATIONOFAEROENGINEDRUMROTOR董延陽董延陽哈爾濱工業(yè)大學哈爾濱工業(yè)大學2015年6月CLASSIFIEDINDEXV21552UDC6211DISSERTATIONFORTHEMASTERDEGREEINENGINEERINGINVESTIGATIONONFATIGUEPROBLEMCAUSEDBYVIBRATIONOFAEROENGINEDRUMROTORCANDIDATEDONGYANYANGSUPERVISORPROFLIUZHANSHENGACADEMICDEGREEAPPLIEDFORMASTEROFENGINEERINGSPECIALITYPOWERMACHINERYANDENGINEERINGAFFILIATIONENERGYSCIENCEANDENGINEERINGDATEOFDEFENCEJUNE,2015DEGREECONFERRINGINSTITUTIONHARBININSTITUTEOFTECHNOLOGY

簡介：哈爾濱工業(yè)大學碩士學位論文超高速撞擊特性分析研究及航天器防護結(jié)構(gòu)參數(shù)優(yōu)化姓名黃太平申請學位級別碩士專業(yè)固體力學指導教師張偉賈斌20050101墜塹堡三些查蘭三蘭竺蘭蘭堡篁塞ABSTRACTTHETHESISDEALSWITHHYPERVELOCITYIMPACTBETWEENSPACEDEBRISANDPROTECTIONSYSTEMSOFSPACECRAFFSPROTECTIONMATERIALSANDDAMAGECHARACTERISTICSOFPROTECTIONSYSTEMSFORSPACECRAFTSHAVEBEENANALYZEDBYTHETESTDATAANDNUMERICALVALHEANALOGUNDERTHERELIABILITYTHEMINIQUALITYOPTIMIZATIONFORTHEPROTECTIONSYSTEMSOFSPACECRAFISHASBEENSTUDIEDTHETASKANDRESEARCHHAVEGREATSIGNIFICANCETOTHETHEORYANDENGINEERINGTHEMAINRESEARCHINTHEPAPERASFOLLOWINGFIRST，ACCORDINGTOTESTDATA，EMPIRICALFORMULATIONSOFCRATERDEPTHINATHICKTARGETAREOBTAINEDEMPLOYINGDIMENSIONANALYSISANDREGRESSIONANALYSISTHEDIFFERENTMODELSOFEMPIRICALFORMULATIONSAREANALYZEDTHERESULTSSHOWTHATTHEEMPIRICALFORMULATIONSUSINGHARDNESSESOFTHETARGETAREMOREACCURATETOTHETESTTHANTHATUSINGYIELDSTRENGTH，WHICHMAKESOUTTHATHARDEFFECTOFHYPERVELOCITYIMPACTREPRESENTEDBYHARDNESSMUCHREFLECTESSENTIALCHARACTERISTICSTHANTHATUSINGYIELDSTRENGTHTHEEMPIRICALFORMULATIONSOFHOLEDIAMETERINTHINTARGET，OBTAINEDBYDATAREGRESSIONANALYSIS，ISMOREACCURACYTHANTHOSEDERIVEDBYMAIDENGEHRINGANDMCMILLANUNDER也ETESTCONDITIONTHEANALYSISMETHODISRESULTFULTHEEMPIRICALFORMULATIONSOFDEBRISCLOUDSCHARACTERISTICANGLESISOBTAINEDBYTHETESTDATA。SECONDLYUNDERTHESPECIALTESTCONDITION，THEBALLISTIC1IMITEQUATIONFORTHEDOUBLEWALLPROTECTIONSYSTEMSISDEVELOPEDBYTHEREGRESSIONANALYSISOFTHETESTDATATHEWHOLECURRENTOFBALLISTICLIMITDIAGRAMISCONSISTENTWITHPRIMARYDIAGRAM，WHICHSHOWSTHATTHEBALLISTICLIMITEQUATIONDERIVEDBYTHEREGRESSIONANALYSISISFITFORTHERESEARCHANDTESTANDPREPAREDFORTHEREVISEANDREASONABLEMODELOFTHEBALLISTICLIMITEQUATIONTHETHIRD，THEPROTECTIONSYSTEMPARAMETERSOFSPACECRAFFSAREANALYZEDBYOPTIMIZATIONUSINGTHEBALLISTICLIMITEQUATIONOBTAINED，WHICHSOLVETHEOPTIMIZATIONRESULTSOFTHESTRUCTUREPARAMETERSOFTHEBALLISTICLIMITEQUATIONDERIVEDBYCHRISTIANSENARENOTOBTAINEDTHERESULTSOFTHEMINIQUALITYOPTIMIZATIONFORTHEPROTECTIONSYSTEMSOFSPACECRAFTSUNDERTHECELLSPECIALPARTICLESSHOWTHATTHETHICKNESSOFTHECABINWALLANDTHEPROTECTIONSCREENAREII

簡介：CCD航天光學遙感相機的成像與傳統(tǒng)的膠片成像有著很大的差異，膠片的顆粒度相對于光學系統(tǒng)彌散斑來說它的大小可以忽略，而CCD探測器的像元尺寸一般來說是光學系統(tǒng)彌散斑的幾倍，把以CCD探測器為接收器的光學成像系統(tǒng)看作是空間移不變系統(tǒng)會帶來一定的理論上的近似，因而在理論上不能準確求得分辨力與像質(zhì)的關(guān)系，所以在實踐中又采用了平均意義的MTF。這里則采用模擬試驗及計算機仿真的方法來研究在空間移變條件下的CCD遙感相機的影像分辨力和像質(zhì)問題，這種研究不僅在理論上是一種補充，在工程實踐上也很有實際意義。鑒于CCD探測器成像是數(shù)字化成像，所以本文采用計算機仿真和CCD相機模擬成像試驗及理論分析的方法對CCD探測器的目標影像的分辨力與CCD像元分辨力的關(guān)系及像質(zhì)進行了研究并獲得如下主要結(jié)論。1首先仿真了物像與CCD探測器相對靜止情況下的成像過程，仿真中的目標采用鑒別率板的圖案即黑白相間的條帶。

簡介：基于機器視覺的航空儀表自動識別研究作者李澤本指導教師王長元教授申請學位學科計算機應(yīng)用技術(shù)西安工業(yè)大學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；

簡介：上海交通大學碩士學位論文航天領(lǐng)域技術(shù)創(chuàng)新的動態(tài)模式研究姓名宣明申請學位級別碩士專業(yè)工商管理（MBA）指導教師陳宏民20040111本課題的研究過程中首次提出了系統(tǒng)技術(shù)創(chuàng)新的概念針對航天技術(shù)創(chuàng)新的新特點進行了歸納充分運用航天領(lǐng)域兩個典型的案例預先研究載人航天工程中的技術(shù)創(chuàng)新引出了航天領(lǐng)域的兩種技術(shù)創(chuàng)新模式總結(jié)了預先研究的技術(shù)創(chuàng)新模式這是基于技術(shù)與需求互動模式的拓展同時總結(jié)了我國航天企業(yè)技術(shù)創(chuàng)新戰(zhàn)略模式為立足自主創(chuàng)新倡導合作創(chuàng)新注重預先研究實施技術(shù)跨越本課題研究成果可以為航天領(lǐng)域技術(shù)創(chuàng)新模式選擇及戰(zhàn)略制訂提供參考也對相關(guān)的同類行業(yè)具有借鑒意義關(guān)鍵詞技術(shù)創(chuàng)新模式航天領(lǐng)域

簡介：分類號LDCR8／坫涉中國民用航空學院碩士學位論文航空發(fā)動機轉(zhuǎn)子實驗臺振動測試分析及軟件實現(xiàn)研究生姓名導師姓名申請學位級別一玉蘭亟～爨在陵系題叁堂醚趔筮主奎盤塑夔攮學科專業(yè)名稱藍窒生筮撞迸理詮當正攫論文答辯曩期9么篷羔塑叢塞。204年12月20疑中國民掰航宅學院頸L6學位論文ABSTLACLNOWADAYS，THEOLDMAILLTENANCEMODEWHICHMAINTAINSAEROENGINESACCORDINGTOTHEHATIMEIS∞MINGTO也EEND南RLTSEXTR∞F擊撒皤LOSSBOTH強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

簡介：娜介次掌碩士學位論文寥論文題目航空發(fā)動機機匣包容性的試驗研究與負真讓算作者姓名指導教師學科專業(yè)所在學院提交日期浙江大學碩士學位論文摘要本文主要研究航空發(fā)動機機匣對斷裂葉片的包容性問題。在年實驗基礎(chǔ)上，本文又對四組不同尺寸單平板葉片和機匣的高速撞擊模型進行了實驗研究，得到四組實驗結(jié)果。在四組實驗中，葉片均被機匣成功包容。葉片在機匣上撞擊出不同數(shù)目、深淺的凹坑。對于較高轉(zhuǎn)速下飛斷的長葉片，機匣上形成的第二個凹坑最深，葉片也卷曲厲害而對于低速下飛斷或者較短葉片，則一般會發(fā)生三次撞擊，其中第一個凹坑最深，而葉片則沒有很大的變形。葉片變形對撞擊過程中機匣的受力情況影響很大。結(jié)合年和年的實驗研究數(shù)據(jù)，選取其中的四組，利用軟件建立計算模型，對實驗過程進行仿真模擬。計算結(jié)果和實驗結(jié)果有較好的吻合，真實再現(xiàn)了葉片撞擊機匣的過程，成功的預測了機匣的包容能力，驗證了可使用仿真計算進行包容能力校核或設(shè)計新型包容結(jié)構(gòu)。根據(jù)結(jié)構(gòu)塑性動力學響應(yīng)分析和葉片變形過程分析，指出葉片卷曲的形狀對凹坑的分布起到?jīng)Q定性作用，并對影響葉片卷曲形狀的飛斷轉(zhuǎn)速、抗彎剛度等參數(shù)進行了考察。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階段，進一步弄清了葉片高速撞擊機匣的機理。本文建立的計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，為進行機匣包容性研究提供了新方法，降低了實驗費用和研發(fā)周期，對發(fā)動機機匣結(jié)構(gòu)的改進研究有一定的實際意義。關(guān)鍵詞航空發(fā)動機包容性葉片塑性動力學數(shù)值仿真

簡介：分類號UDC密級公Ⅱ?qū)W位論文題目基于信息融合的航空發(fā)動機整機振動故障診斷技術(shù)研究研究生姓名學科專業(yè)名稱研究方向論文類型申請學位指導教師姓名指導教師職稱指導教師單位論文提交日期論文答辯日期費成巍航空宇航推進理論與工程航空發(fā)動機試驗與測試技術(shù)應(yīng)用基礎(chǔ)碩T艾延廷教授沈陽航空工業(yè)學院2009年11月24日2010年01月08日沈陽航空工業(yè)學院2叭0年01月原創(chuàng)性聲明本人鄭重聲明所呈交的學位淪文是本人在導師的指導下獨立完成的。除文中已經(jīng)注明引用的內(nèi)容外，本論文不包含其他個人或集體已經(jīng)發(fā)表或撰寫過的作品或成果，也不包含本人為獲得其他學位而使用過的成果。對本文研究做出重要貢獻的個人或集體均已在論文中進行了說明并表示謝意。本聲明的法律后果由本人承擔。論文作者簽名岳南毳，陽IO年F月他日