簡介：南京航空航天大學(xué)碩士學(xué)位論文XRF和顯微圖像技術(shù)在航空發(fā)動機智能監(jiān)測中的綜合應(yīng)用姓名羅鋒申請學(xué)位級別碩士專業(yè)載運工具運用工程指導(dǎo)教師李艷軍20090101XRF和顯微圖像技術(shù)在航空發(fā)動機智能監(jiān)測中的綜合應(yīng)用IIABSTRACTAEROENGINESUPPLIESTHEMAJORMOTIVEPOWERTOTHEMODERNAIRCRAFT,SOTHESTATUSINSPECTIONOFTHEAEROENGINEOPERATIONPLAYSUNDOUBTEDLYANIMPORTANTROLEACCORDINGTODIFFERENTOBJECTS,THECONCLUSIONOFFUSEINGSEVERALDIFFERENTMONITORINGMEANSISMOREACCURATELYTHISPAPERBEASEDONXRFXRAYFLUORESCENCETECHNOLOGYANDINTRODUCINGARTIFICIALNEURALNETWORK,GRAYSYSTEMTHEORY,PROBABILITYSTATISTICS,DEMPSTERSHAFEREVIDENTIALTHEORYANDOTHERINTELLIGENTCALCULATION，INORDERTODEVELOPAINTELLIGENTMONITORINGSYSTEMXRFXRAYFLUORESCENCETECHNOLOGY,USINGISOTOPERADIOACTIVESOURCESTOERADIATEMATERIALSWHICHTOBEMEASURED,PRODUCESENERGYSPECTRUMTHROUGHASERIESOFINSTALLATIONS,WHICHISUSEDTODETERMINETHEELEMENTALMATERIALCATEGORIESMICROSCOPICIMAGETECHNIQUEWHICHWITHTHEFUNCTIONSOFPARTICLECOUNTERANDFERROGRAPH,ACHIEVEDTHEDIAGNOSISONTHEAEROENGINEWEARFAULTSBYUSEINGMCROSCOPICOPTICALIMAGINGSYSTEMANDDIGITALIMAGEPROCESSINGMETHODTHERESEARCHWORKMAINLYINCLUDESTHEFOLLOWINGTHREEASPECTSFIRSTLY,PROCESSEDXRFENERGYSPECTRUMANDOUTPUTTEDTHEELEMENTCONCENTRATIONSRESEARCHEDTHEMETHORDOFCALCULATINGTHETHRESHOLDVALUEOFTHECONCENTRATIONOFTHEWEARDEBRISANDFORECASTEDTHEWEARFAULTBYGREYPREDICTIONSECONDLY,BASEDONTHENUMBERANDPARAMETERSOFWEARDEBRIS,FUSINGTHERADIALBASEDFUNCTIONRBFNEURALNETWORK,BACKPROPAGATIONBPNEURALNETWORKANDGREYRELATIONALANALYSISMETHODS,IMPROVINGTHEACCURACYRATEOFDEBRISAUTORECOGNITIONBASEDONTHECOLLECTEDINFORMATIONOFTHEDEBRISCONFIGURATIONCHARACTERISTICSANDCONDUCTINGTHEDIAGNOSISONTHEAEROENGINEWEARFAULTSACCORDINGTOTHERECOGNITIONFINALLY,ASYNTHETICINTELLIGENTDIAGNOSISMODELBYDATAFUSIONFAULTDIAGNOSISMETHODBASEDONABOVEDIAGNOSISMETHODWASPUTFORWARD,ANINTELLIGENTMONITORINGSOFTWARESYSTEMOFAEROENGINEISDEVELOPEDBASEDONTHEABOVERESEARCHKEYWORDSAEROENGINE,WEAR,XRF,DEBRISANALYSIS,INFORMATIONFUSION,INTELLIGENTANALYSIS

簡介：哈爾濱工業(yè)大學(xué)碩士學(xué)位論文航天器軌道動力學(xué)仿真技術(shù)研究姓名白紹竣申請學(xué)位級別碩士專業(yè)一般力學(xué)與力學(xué)基礎(chǔ)指導(dǎo)教師王日新20050601哈爾濱工業(yè)大學(xué)工學(xué)碩士學(xué)位論文ABSTRACTTHESPACECRAFTORBITISONEOFTHEMOSTIMPORTANTELEMENTSINTHEFLIGHTMISSIONS，ANDTHEDESIGNANDPROPAGATEOFSPACECRAFTORBITISAPIECEOFIMPORTANTANDCOMPLEXWORKTHUS，THESIMULATIONOFORBITDYNAMICSMAKESGREATSENSEINMILITARYTHISPAPERWHICHISRESEARCHONSPACECRAFTORBITDYNAMICSIMULATIONISANIMPORTANTANDELEMENTALPARTOFTHENATIONALHIGHTECH863703PLAN“THEPRIMARYSIMULATIONSYSTEMOFSPACEENVIRONMENTANDWEAPONS”INTHISTHESIS，THEORBITTHEORYOFSPACECRAFTISINTRODUCEDAHIGHPRECISIONMODELOFORBITDYNAMICSISBUILT，INWHICHTHEPERTURBATIONSDUETONONSPHERICALGRAVITATION，SUNLIGHTPRESSURE，ATMOSPHERICDRAGANDLUNISOLARGRAVITATIONAREINCLUDEDTHEPROPERTIESOFSUNSYNCHRONOUSORBIT，GEOSTATIONARYORBIT，GROUNDTRACEREPETITIONORBIT，MOLNIYAORBITARESTUDIEDANDTHEWAYSTODESIGNSUCHORBITSAREOFFEREDTHESOFTWAREMODULEDEVELOPEDINTHISTHESISSERVESFORMANYOTHERMODULESTHEEFFICIENCYOFTHISMODULEDIRECTLYAFFECTSTHEPERFORMANCEOFTHEWHOLESYSTEMTHENUMERICALHIGHPRECISIONORBITPREDICTIONALGORITHM，WHICHINCLUDESRUNGEKUTTAFEHLBERGADAPTIVESTEPINTEGRALALGORITHM，LEGENDREPOLYNOMIALSALGORITHM，TRIGONOMETRICFUNCTIONSERIESANDSOON，ISTHEMOSTCOMPLEXANDEXHAUSTING，THISPAPEROPTIMIZEDTHEALGORITHMSRELATINGTOORBITPREDICTIONTHECOMPUTATIONALCOMPLEXITYTHEORYWASADOPTEDTOANALYSISANDOPTIMIZETHEALGORITHMSINTHERESULT，THEEFFICIENCYOFTHEALGORITHMWASIMPROVEDALOTTHESIMULATIONSYSTEMOFSPACECRAFTORBITDYNAMICSBASEDONATLCOM，WHICHMAKESTHEPROGRAMMODULARANDREUSABLE，ISFINISHEDITOFFERSMANYFUNCTIONSSUCHAS，SPECIALORBITSDESIGN，COMMONORBITDESIGN，HIGHPRECISIONORBITPROPAGATING，LONGTERMORBITPREDICTION，SPACECRAFTATTITUDEKINEMATICANALYSIS，GROUNDTRACEREPORT，COVERAGEANALYSIS，COMMUNICATIONLINKANALYSISANDS0ONATLAST，INORDERTOTESTTHEFUNCTIONSOFTHESYSTEM，ATESTPLATFORMWASDEVELOPEDTHETESTRESULTSSHOWEDTHATTHESIMULATIONSYSTEMWASAHIGHPERFORMANCEPRODUCTII

簡介：分類號UDCY1043656學(xué)位論文題目航空發(fā)動機主燃燒室CFD的工程適用性研究研究生姓名于芳學(xué)科專業(yè)名稱航空宇航推進(jìn)理論與工程研究方向航空發(fā)動機燃燒設(shè)計與分析技術(shù)申請學(xué)位碩士指導(dǎo)教師姓名徐讓書指導(dǎo)教師職稱教授指導(dǎo)教師單位沈陽航空工業(yè)學(xué)院論文提交日期2007年01月LO日論文答辯日期2007年01月20日學(xué)位授予日期2007年月日答辯委員會主席綴教授／評閱人承勰睇嚏助弓FC宕濃教瞧沈陽航空工業(yè)學(xué)院2007年1月沈陽航空工業(yè)學(xué)院頓十學(xué)位淪文ABSTRAETENGINEERINGAPPLICABILITYOFAEROENGINECOMBUSTORCFDHASBEENRESEARCHEDANDVERIFIEDWITHACERTAINENGINECOMBUSTORASTHEPROTOTYPETHEGOALISTOVERIFYANDVALIDATETHEENGINEERINGAPPLICABILITYOFNUMERICALCALCULATIONMETHODANDVARIOUSPHYSICALMODEISINTHEAEROENGINECOMBUSTORCFDTHISPAPERBRIEFLYDESCRIBESTHESTATUSANDDEVELOPMENTOFCOMBUSTORCFDENGINEERINGAPPLICABILITYWITHDEEPLYINVESTIGATIONATHOMEANDABROADTHEWORKPROGRESSOFTHEAEROENGINECOMBUSTORANDTHEORYOFMULTIDISCIPLINARYCFDISGIVENINDETAIL，ANDTHENTHERESEARCHPROJECTISPUTFORWORDANDNUMERICALMODELSAREBUILTTHESOLUTIONDOMAINOFTHEPROBLEMISDELIMITEDANDSIMPLIFIEDINTHESIMULATION，F(xiàn)ILMCOOLINGHOLEROWSISSUBSTITUTEDWITHSLOTSFILLEDWITHPOROUSMEDIATOSIMPLIFYTHEGEOMETRYOFTHECOMBUSTOR；THESOLUTIONDOMAINISMESHEDWITHMANUALHEXAHEDRONCOREMETHODTHESIMULATIONCHOOSESREAL拓ABLEKETURBULENCEMODEL，PRESSURESWIRLATOMIZERMODE、ANDNONPREMIXEDCOMBUSTIONMODE、TOSIMULATETHETURBULENTFLOW，F(xiàn)UELSPRAYANDTURBULENTCOMBUSTION；THERELATIONSOFMATERIALTHERMOLPROPERTIESWITLLTEMPERATUREAREFITTEDUSINGATEMPERATUREDEPENDENTFUNCTIONTHEGOVERNINGEQUATIONSARESOLVEDUSINGCOMMERCIALCFDSOFTWAREONAHIGHPERFORMANCECOMPUTERCLUSTERHPCCWITHPARALLELPROCESSINGANDHIGHORDERDESCRETIZATIONSCHEME，THENUMERICALSOLUTIONOFFLOW，F(xiàn)UELSPRAYANDTOWPHASEFLOWANDCOMBUSTIONINTHECOMBUSTORHAVEBEENOBTAINEDTHEENGINEERINGAPPLICABILITYOFTHEAEROENGINCCOMBUSTORCFDISDISCUSSEDBYANALYZINGTHESOLUTIONANDCOMPARINGWITHEXPERIMENTALDATATHERESULTSINDICATETHATTHECALCULATIONISREASONABLEANDSATISFIESTHEREQUIREMENTOFENGINEERINGTHISPAPERVALIDATESTHEENGINEERINGAPPLICABILITYOFTHECOMBUSTORNUMERICALSIMULATIONANDALSOPOINTSOUTTHEPROBLEMOFTHECOMBUSTORMODELTHATNEEDSTOBEIMPROVED，THECONCLUSIONISMEANINGFULFORCOMBUSTORDESIGNANDRESEARCHKEYWORDSCFD；AIROENGINECOMBUSTOR；ENGINEERINGAPPLICABILITY；SPRAY；COMBUSTION

簡介：中國民用航空學(xué)院碩士學(xué)位論文多航空器沖突檢測與優(yōu)化解脫研究姓名劉煜堃申請學(xué)位級別碩士專業(yè)交通運輸規(guī)劃與管理指導(dǎo)教師徐肖豪聶潤兔20060426

簡介：天津大學(xué)碩士學(xué)位論文基于航空照相槍的飛機姿態(tài)測量姓名汪偉申請學(xué)位級別碩士專業(yè)測試計量技術(shù)及儀器指導(dǎo)教師王向軍20070101ABSTRACTAIRBORNEFIRECONTROLCAMERAGUNISAKINDOFPHOTOGRAPHICANDRECORDINGEQUIPMENTADOPTEDGENERALLYONTHEFIGHTERPLANEITISOFTENINSTALLEDONTHEAIRFOIL，AIRCRAFTNOSEANDCOCKPITWHENFIREBUTTONISPRESSED，CAMERAGUNTAKESPHOTOSOFTARGETALONEORTOGETHERWITHGUNSYSTEMTHEEFFECTOFTRAININGORCOMBATCANBECHECKEDBYWHATCAMERAGUNSHOTATPRESENTTRADITIONALFILMCAMERAGUNHASBEENMOSTWIDELYUSEDONTHEFIGHTERPLANEFILMCAMERAGUNCANNOTSATISFYTHEFLIGHTTRAININGPURPOSEASARESULTOFSOMEDISADVANTAGESOFFILM，SUCHASHIGHCOSTLOWACCURACYANDWHICHISHARDTOSAVETHEIMAGEWHICHISCOLLECTEDBYCAMERAGUNSHOULDBEINTERPRETEDANDANALYZEDWHENTHEFLIGHTTRAININGISFINISHEDTHEREARETWOKINDSOFINTERPRETATIONMETHODBYUSINGFILMCAMERAGUNWHENTHEFLIGHTTRAININGISFINISHEDONEISEMPIRICALINTERPRETATION，THEOTHERISMANUALINTERPRETATIONEMPIRICALINTERPRETATIONCALLWORKEFFECTIVELYWHENTHESHOOTINGDISTANCEISSHORTANDAIRMANMUSTHAVERICHEXPERIENCECOMPAREDWITHTHEEMPIRICALINTERPRETATIONMANUALINTERPRETATIONISOFSOMEACCURACYBUTTHISMETHODISCOMPLEXWHICHNEEDADJUSTMAGNIFICATIONOFIMAGEANDSELECTDIFFERENTINTERPRETATIONACCORDINGTODIFFERENTFIREKINDSITISNECESSARYTOIMPROVETHETRADITIONALFILMCAMERAGUNANDINTERPRETATIONMETHODWITHTHEIMPROVEMENTOFARMYEQUIPMENTANDTHEPROGRESSOFTRAININGREQUIREMENTSTHISPAPERUSESDIGITALEQUIPMENTTORECORDFIRINGEFFECTTHEDESIGNWHICHISCOMPOSEDOFCMOSIMAGINGSENSORUSINGFORIMAGINGCHIP，HIGHCAPACITYFLASHUSINGFORDATAMEMORYANDCPLDUSINGFORCONTROLUNITCANREPLACEFILMCAMERAGUNUSBDATASWITCHISDESIGNEDINORDERTOTRANSFERDATAWHICHISCOLLECTEDBYDIGITALCAMERAGUNTOPCATTITUDEANGLECANBECALCULATEDBYIMAGEANALYSISANDSPECIFICALGORITHMFIRSTOFALL，ASERIESOFIMAGESPREPROCESSINGTECHNIQUESWASTAKENTOEXTRACTTHEPRECISEEDGEOFTARGETIMAGETHEFOURCHARACTERISTICPOINTSOFTHEAIRCRAFTAREEXTRACTEDAFTERIDENTIFYINGTARGETPROFILEANDTHEKEYPOINTCANALSOBEOBTAINEDTHEMEASUREMENTPRINCIPLESANDMETHODOFAIRCRAFTATTITUDEANGLEBASEDONASINGLEIMAGEPLANEISRESEARCHEDBYUSINGPINHOLEPROJECTIONMODELBASEDONTHEKNOWNPARAMETERSINFORMATIONOFTHEAIRCRAFTANDOPTICALSYSTEMSINFORMATION，AIRCRAFT

簡介：沈陽航空工業(yè)學(xué)院碩士學(xué)位論文噪聲載荷作用下航空薄壁殼體的隨機振動響應(yīng)姓名廖海濤申請學(xué)位級別碩士專業(yè)安全技術(shù)及工程指導(dǎo)教師王克明20070201沈陽航空工業(yè)學(xué)院碩士學(xué)位論文ABSTRACTTHISPAPERSTUDIESTHERESPONSEOFTHINSHELLSTRUCTURETOHIGHLEVEL．WIDEFREQUENCYBANDRANDOMNOISEEXCITATION,WHICHISTHEBASISFORANALYZINGTHESTRUCTURESONICFATIGUEPROBLEM．THENUMERICALCALCULATIONMETHODOFTHESTRUCTURESTRESSRESPONSETORANDOMNOISEEXCITATIONISMAINLYSTUDIEDANDNUMERICALSIMULATIONISPERFORMEDFORACORRUGATEDCYLINDERSHELL．THEVIBRATIONRESPONSEOFTHEELASTICSHELLSTRUCTUREEXCITEDBYTHEACOUSTICLOADSIS，INFACT,AFLUIDSTRUCTURECOUPLINGPROBLEM．INORDERTODEALWITHTHEFLUIDSTRUCTURECOUPLINGPROBLEM，THERESPONSEOFTHESTRUCTUREISOBTAINEDBYFEMANDTHENEARFIELDNOISEISCOMPUTEDBYBEM．THISPAPERFIRSTCALCULATESTHEFREQUENCYDOMAINCOMPLEXDISPLACEMENTRESPONSESOFATHINSHELLEXCITEDBYACOUSTICLOADSUSINGTHEACOUSTICANALYSISSOFTWARESYSNOISETHATPROVIDESTHEFUNCTIONTOANALYZEFLUIDSOLIDCOUPLINGPROBLEMS．THENTHECOMPLEXDISPLACEMENTRESPONSESINFREQUENCYDOMAINALETRANSMITTEDINTOANSYSANDTRANSFOMAEDINTOTIMEDOMAINDISPLACEMENTDATABYⅡ下T．FINALLY,THEVIBRATIONSTRESSRESPONSESTOACOUSTICEXCITATIONSOFTHETHINSHELLARECALCULATEDBASEDONTHETIMEDOMAINDISPLACEMENTRESPONSES．THENUMERICALMETHODBASEDONSEAISSTUDIEDFORRESPONSECALCULATIONOFTHINSHELLSUBJECTEDTOACOUSTICEXCITATION．ASEAMODELISESTABLISHEDANDTHECOUPLINGFACTORSAMONGSUBSYSTEMSANDMODALDENSITYOFTHESUBSYSTEMSWHICHARENECESSARYFORTHEANALYSISARECALCULATEDBASED011THEPARAMETERSGIVEN．THESUBSYSTEMSDYNAMICRESPONSEUNDERSOMEACOUSTICFORCESISANALYZEDBYAUTOSEASOFTWARE，ANDTHENTHERLN8STRESSESOFTHESTRUCTUREARECALCULATED．THEANALYSISMETHODDEVELOPEDINTHISPAPERFORTHINSHELLSTRUCTURERESPONSETORANDOMNOISEEXCITATIONISOFREFERENCEVALUEFORANALYZINGSONICFATIGUEPROBLEMSANDIMPROVINGDYNAMICSTRENGTHOFTHINSHELLSTRUCTURES．KEYWORDSTHINSHELL；ACOUSTICLOAD；VIBRATIONRESPONSE；FEM／BEM；SEA

簡介：中圖分類號V2337論文編號102870216S114學(xué)科分類號080202碩士學(xué)位論文航空多電發(fā)動機DCDC變換器數(shù)字化控制研究研究生姓名盧彬彬?qū)W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)教師肖玲斐副教授南京航空航天大學(xué)研究生院能源與動力學(xué)院二О一六年三月NANJINGUNIVERSITYOFAERONAUTICSASTRONAUTICSTHEGRADUATESCHOOLCOLLEGEOFENERGYPOWERENGINEERINGDIGITALCONTROLRESEARCHOFDCDCCONVERTERSFMEELECTRICGASTURBINEENGINESATHESISINAEROSPACEPROPULSIONTHEYENGINEERINGBYLUBINBINADVISEDBYASSOCIATEPROFESSXIAOLINGFEISUBMITTEDINPARTIALFULFILLMENTOFTHEREQUIREMENTSFTHEDEGREEOFMASTEROFENGINEERINGMARCH2016

簡介：西北工業(yè)大學(xué)碩士學(xué)位論文混合維數(shù)航空發(fā)動機總體性能計算程序構(gòu)架初步研究姓名葉緯申請學(xué)位級別碩士專業(yè)航空宇航推進(jìn)理論與工程指導(dǎo)教師陳玉春20070301西北工業(yè)大學(xué)碩十學(xué)付論文ABSⅡ認(rèn)CTABSTRACTTHEAEROEN雩IILEPERFO珊ALLCESIMULATIONCOULD如RECASTEN百NEP曲咖鋤CE；∞D(zhuǎn)LLCEMANYLARGESCALEKLRDWARETESTS鋤DPROVIDETHE№REF婦CEFORDESI扣ERSILLTLLEEAFLYDESIGNTHEAEMENGINEPCRFO皿卸CESIMULATIONLLASBECDMETHECRITICALTECTL∞LOGYI11ACRO∞百NEDESI驢MULTI一丘DELITY鋤DMUMDI∞IPLILLALYHAVEBE吼MELATEST仃鋤DOFAERO∞百∞PERFB肋鋤CESIMULATIONKTHISPAP盯，AMCTLLODOFMULTIFIDELITRW勰PRESENTEDALLOWINGMOREACCURATCPRCDICTIONOFTHE掰。一∞百NEPER|J。珊ANCEANDCA】PT砥NG也EPHENONK疆LONTHALAF董EELSSYST黜刪BUTES’RHECONTAITSOFTLLISDIS嗣豇TATIONAL℃ASF0LLOWS11NORDERTO01TAIN徹MERICALSOLUTIONOFBAL鋤C蛔GTECLLLLIQⅡEONCOMPUT％沁∞INE叭徹MEILLODB弱ED0NBROYDEIL’SPRINCIPLCW鷸璐CDTO∞LVEAGYST鋤OFNOILLINE缸EQUATIO璐INMEACROENGILLEPERFO珊鋤CESIINULATIONTHISMETILODISPR鸚ENTCDALLOWINGCALCULATINGJACOBINMATRIX鼯DIRECTLY蛆CRMEM砒ITERALI蚰SO，ITCOULDIMPROVETHESPECDOFTHESIMULATIONCONLPAREDWITHNEWTONM劬OD，NLISMETILODCOULDMEETHEREQUIREMENTOFMES鋤EPRECISIONWIMIESSCOMPUTINGTILILE2AMETHODISPRESEILTCDALLOWILLGⅡLEDCSI齲叩TILIIIZATI∞鋤DPRESCILTING雒OVERVI哪OFTHEINTEGMTI伽鋤DDESI印OPTIIILIZALIONPROBLEMOFAE玲CILGI∞MORDERTO砌NPLETEMEG鋤CRALIZEDAERO一吼GILLES姍ULATIONPRO鯽NONISIGHTPLATFO咖，靜IERALIZEDMODUKCOMP衄EN協(xié)PRO伊AI璐鋤DTHE紕骶婦GCSTA】4DMDSHAVEBEELLUSED111ISPFOPOSCDMEMODW私APPLICDTOLLLE跏鋤GIILEPER向M鋤∞S酞LULAT‰CORNP缸ODWIMORIGINALPAR鋤E培RS，ITTL勰BEENP∞W通MATTHEMEI】曬DCOILLDOBTAILLTHEOPTIMALDESI掣IS3AMEMODISPRCS齟TODINTEGRADNG刪LTILC、，CLOFC呲PIEXITYA11A_LYSIST枷QUESZO幽GT∞HNOLOG”TLLATC印TTLRCTLLE印PROPFIATEPHYSICSOF∞ZZLE砒TLLE3DSTATE衙ENGIILESYST鋤S。HLORDCRT0DCVELOPTLLEPLATFO姍OFMUM矗DELITYSILNULATI∞PRO舭M，OD饑GILLEPERFB肌AILCCSIIILUL撕ONPROGRAM齟D3_DNOZZLECFD∞脅ARCA“INTEGRATEDINTOISIGHTPLATFO皿BYME黜OFALT鋤ATIILGCOMPUTATIONOFPROGRAMBETWECLLO_D鋤D3D，THEMODELS鋤D盯E勰OFTLLENOZZLE鋤DMIX盯WE他A由USTEDAUTONLATICAILYN塢PROBL鋤TLLATTHENOWMATCH眵BE“恃MAEF0鋤酉鵬鋤DNOZZLCINTLLEPERFBMANCESILNLLLATI蚰W勰∞LVEDTHETLLNLST

簡介：西北工業(yè)大學(xué)碩士學(xué)位論文編隊航天器相對運動分析與控制姓名張連禮申請學(xué)位級別碩士專業(yè)飛行器設(shè)計指導(dǎo)教師羅建軍20070301西北工業(yè)大學(xué)碩士學(xué)位論文英文摘要ABSTRACTINTHISPAPER,THERELATIVEMOTIONANDPERTURBATIONMOTIONOFFORMATIONSATELLITESAREANALYZEDINDETAIL，ANDTHENTHEDESIGNOFRELATIVEORBITANDCONTROLLAWARERESEARCHEDINTO．FINALLY,THECONTROLOFRELATIVEATTITUDEISDESIGNED．111EPRINCIPALCONTENTSARESUMMARIZEDASFOLLOWS11THEMATHEMATICALDESCRIPTIONSOFRELATIVEORBITKINEMAFICSANDDYNAMICSARESTUDIED．THEEFFECTSOFDIFFERENTORBITELEMENTSANDPOSITIONPARAMETERSONRELATIVEORBITOFFORMATIONSATELLITESARERESEARCHEDINTO．ANDTHEPRECISERELATIVEMOTIONEQUATIONSANDSIMPLIFIEDRELATIVEMOTIONEQUATIONSOFFORMATIONSATELLITESAREDEDUCED．MODELERRORSOFSIMPLIFIEDEQUATIONSARESIMULATED．THESIMULATIONRESULTSSHOWTHATMODELERROROFSIMPLIFIEDKINEMATICSEQUATIONSISLITTLE．BASEDONPERTURBATIONTHEORYOFSATELLITE，PERTURBATIONFACTORSINFLUENCINGRELATIVEORBITOFFORMATIONSATELLITESAREANALYZED．THERELATIVEPERTURBATIONEXPRESSIONOFAIRDRAGANDOBLATENESSOFTHEEARTHAREDEDUCEDACCORDINGTODYNAMICSCHARACTERISTICS．ANDEFFECTSOFTHESETWOPERTURBATIONSONRELATIVEORBITARESIMULATED．THESIMULATIONRESULTSSHOWTHAT．RELATIVEORBITINCURSEXCURSIONUNDERTHEPERTURBATIONFACTORS，THEEFFECTOFPERTURBATIONONEACHORIENTATIONISDIFFERENT,WHEREEFFECTONAXISYISTHELARGEST．21THEORBITDESIGNMETHODOFFORMATIONSATELLITESARERESEARCHEDINTOINKINEMATICSANDDYNAMICRESPECTIVELY．ANDTHETWOMETHODSAREANALYZEDINTHEORY．THEN，PERTURBATIONFACTORSINFLUENCINGWHOLEORBITANDRELATIVEORBITOFFORMATIONSATELLITESAREANALYZEDANDSIMULATED．THERESULTSHOWSTHATPERTURBATIONEFFECTONWHOLEORBITOFFORMATIONISLARGERTHANTHATONRELATIVEORBIT．FINALLY,BASEDONERROREQUATIONSOFRELATIVEORBITKINEMATICS．THERELATIVEORBITCONTROILAWOFFORMAFIONSATELLITESISDESIGNED．THESIMULATIONSHOWSRELATIVEPOSITIONERRORRAILSTOERRORS’RANGEQUICKLY．3THERELATIVEATTITUDEISANALYZEDINKINEMATICSANDDYNAMICSRESPECTIVELY．ANDTHEKINEMATICSEQUATIONSOFATTITUDEQUATERAIOUARESTUDIEDINDETAIL．AUDTHENTHEEFFECTSOFEARTHGRAVITYANDAIRDRAGONRELATIVEATTITUDEARERESEARCHEDINTO．4BASEDOILNEAREIGENAXISDECOMPOSITIONTHEOREMOFTHERELATIVEATTITUDE，THECONTROLLAWOFRELATIVEATTITUDEMANEUVERBASEDONQUATEMIONISDESIGNEDANDSIMULATED．FIRSTLY,KINEMATICSANDDYNAMICSEQUATIONSOFFORMATIONSATELLITESLOADEDREACTIONWHEELSAREEDUCED．ANDTHEN，BASED0NNEAREIGENAXISDECOMPOSITIONTHEOREMANDRELATIVEERRORQUATEMIONEQUATION．THECONTROLLAWOFRELATIVEATTITUDEISDEDUCED．THENCONTROLSYSTEMISCONFIRMEDTOBESTEADYGOINGUSINGLYAPUNOVSTABILIZATIONTHEOREM．FINALLY,THECONTROLLAWOFRELATIVEATTITUDEMANEUVERISII

簡介：西北工業(yè)大學(xué)碩士學(xué)位論文航空燃?xì)鉁u輪發(fā)動機起動過程數(shù)值模擬研究姓名王永杰申請學(xué)位級別碩士專業(yè)人機與環(huán)境工程指導(dǎo)教師王占學(xué)20060320ABSTRACTTHEDIGITALCOMPUTERSIMULATIONOFSTARTINGCONDITIONSFORAEROGASTURBINEENGINEISALWAYSADIFFICULTYINENGINEPERFORMANCENUMERICALMODELINGATPRESENT，THEENGINEPERFORMANCENUMERICALSIMULATIONTECHNOLOGYFORABOVEIDLECONDITIONISQUITESUCCESSFULHOWEVERFORTHESUBIDLECONDITIONS，ASWITHOUTTHEENGINECOMPONENTCHARACTERISTICS，CENTERINGAROUNDEXTENDINGTHECOMPONENTMAPFORLOWSPEED，LOWFLOWCONDITIONSANDSTARTINGCONDITIONNUMERICALMODELING，WORKISCONTINUOUSLYBEINGDONEANDFARFROMOVERAFTERSYNTHETICALLYEXAMINEDSEVERALKINDSOFMETHODSFOREXTENDINGCOMPONENTMAPSINTOTHELOWSPEEDOPERATINGREGIONWHICHCANBEAVAILABLEFROMTHEPUBLISHEDLITERATURE，AMETHODTHATISNEWERALLOVERTHEWORLDISUSED，WHICHBASEDONTHECHARACTERISTICSIMILARITYLAWSFORFANANDPUMPMACHINESANDUSESANEXPONENTARITHMETICTOEXTRAPOLATETHEENGINECOMPONENTMAPS，ACCORDINGTOTHISMETHOD，THEMATHEMATICALMODELANDSOFTWAREUSEDFOREXTENDINGENGINECOMPONENTLOWSPEEDREGIONMAPSISDEVELOPEDTHISRESEARCHREFERREDTOTHEGENERALSIMPLIFIEDCOMPONENTLEVELENGINESTARTMODELSANDTHEONEDIMENSIONMODELS，CONSIDERINGTHEFEATUREOFTHEENGINEPERFORMANCESIMULATIONPROGRAM，ANDDEVELOPEDANENGINESTARTMODELFORSIMULATINGTHEENGINESTARTINGCONDITIONSUSINGTHISMODELANDTHEEXPANDEDENGINECOMPONENTMAPS，F(xiàn)INALLYANOTHERSOFTWAREISFINISHEDTOMODELINGAEROGASTURBINEENGINESTARTINGCONDITIONSTHISSOFTWAREAPPLIESCONVENTIONALCOMPONENTMATCHINGPRINCIPLESTOTHEENGINESTATINGMODELING，SOTHEKEYATTENTIONTOTHEVARIATIONOFTORQUE，ROTATINGSPEEDANDTURBINEINLETTEMPERATUREDURINGSTARTINGPROCESSCANBEREVEALEDINORDERTOPROVETHEVALIDITYOFTHESOFTWAREDEVELOPEDBYTHISRESEARCH，AHOMEMADETURBOFANTYPEENGINEISUSEDASTHEEXAMPLEANDITSSTARTINGANDACCELERATINGCONDITIONWASSIMULATEDCOMPAREDTHESIMULATEDDATAWITHTHETESTEDDATA，ACONCLUSIONCALLBEMADETHATTHESOFTWAREISVALIDANDHASCERTAINPRECISION，SOITCANBEUSEDINENGINEERINGPRACTICEKEYWORDSGASTURBINEENGINE，STARTINGPROCESS，LOWSPEEDCOMPONENTMAP，NUMERICALSIMULATIONIL

簡介：西北工業(yè)大學(xué)碩士學(xué)位論文模擬航天器控制基礎(chǔ)研究姓名郭雷申請學(xué)位級別碩士專業(yè)飛行器設(shè)計指導(dǎo)教師王志剛20070301西北工業(yè)大學(xué)碩士論文ABSTRACTABSTRACTTHETCCLLILOLOGYOFSPACEC瑚IFTFORNLATIONNIGBTDYN鋤ICSANDCOLL仰LISALEAD沁EDGEPROBLEMINAS仃OMUTICFIELD．THEREFORE“ISALSOTHEHOTSPOTRESEARCHIILM觚YCOLINTRIES．ASTHELARGEOFTHEDI伍CUL劬RISK觚DINVESTIILEMINDIRECTSPACE∞SEARCH，MAILYCOUESAD叩TV鰣OLLSMEMODS，MROU曲SIILLLLL撕NGTINYGRAV毋CIRC啪GTAFLCE，T0CARRYTHEEXPERIMENTSTUDY．WHERE嬲，TLLEEXPEFIRILEM蚰MYOFOURCOUNTRYINTLLISFIELDISRELATIVELYDEFICIENT．THECOOPERATIVECOMROLOFMULTIPLEMOBILE．ROBOTSFB蛐ATIONISSTILDIEDINTLLEP印ERITHENTLLEAPPLICATIONOFTHEPROBLEMON伊OUNDEXPERIMEMOFSI枷LATIONSPACECMRISDISCLLSSED．NLCF0110WINGPROBLEMSISSTILDIEDINTHEPAPER1．THEBACKGROUNDOFGROLLILDEXPERIMENTSYSTCMOF丘．EENYINGSPACEFOBOTSAL】DT11ESTILDYRCF如NCEDAREIN打I砌UCED，ANDTHESIGLLI丘CANCEA11DIFLSTALLCYOFCNHAILCINGSTILDYONGROUNDEXPERIILLEMTECLLILOLOGYOFAS咖ILA_UTICDYN鋤ICS鋤DCOMROLAREA11ALYZED．2．BASEDONTLLESTILDYALLDCOMPAREONTHEPRESENTMULTIPLEMOBILEROBOTSCON仃0LSYS衄M，AMUITIPLEMOBILEROBO捃CONNDLSYSTEMBASEDONOPENAGENTARCLLITCCTURETLLEORYISADOPTED，A11DTLLE‰CTIONOFNLESYSTEM砒LDKEYTECHLLIQUEISDISCUSSED．3．1WOEXPERIMENTPLATFORNLSOFSIMULATIONSPACECMFTFO衄ATIONCONTROLARESETUP，USINGSELFDEVEIOPEDSIMULATIONSPACECRA凰ANDGROUNDEXP鰣MENTSYSTEMREF宅RENCED．THEFLIGHTCON仃OLSIMULATIONISOPERATEDTOPR印AREFORTLLEOBJECTEXPERIMEMWHENTLLEEXPERIMEMSYSTEMISACCOMPLISHED．4．ENVIRO蛐EMMODELINGAILDPAMPMGRAMIILINGARETLLEIMPONALL_TPROBLEMINT11EFIELDOFMOBILEROBOTS．1KCOMMONMODELINGMETHODSISAILALYZEDAILDS眥吼ARIZED，A11DTHEEIⅣIM啪EMMODELOFEXPCRIM饑TPLATFO肌ISPRESENTED．THEP砒HPRO伊砌血NGMETHODSOFMULTIPLEMOBILEROBOTSAREANALYZEDANDSU舢ARIZED．FINALLY，APATHOPTIMIZATIONALGORITTLMFITTEDTLLEDYIL鋤ICENVIM啪ENT，N柵ELYDYRIAMICALGORITHMD奉A(yù)LGODTHM，ISPMFOM訓(xùn)，TO辯ARCHMEPAMARRAYS．THENADYN鋤ICPAMOFMOB紕ROBO乜ISAVAILABLE．5．SEVERALCOMMLMEMODSOFMULTIPLEMOBILEROBOTSISSTUDIEDINT11EP￡LP％ANDF．0MATIONBEHAVIORISREDUCEDTOSEVERALSUBBEHAVIORVIAF．OMLATIONCON缸DLALG嘶MMOFR印LACINGMELEADCRB船EDONBEHAVIOR，TLLENCOMROLVARIABLESOFEVERYSUB．BEHAVIORISCALCULATED．舢LTLLECOMROLV碰ABLESARCWEIGHTEDANDMIXEDACCORDMGTOSPECIFICFOMLATIONMISSION鋤DTASK鋤VIRONRNENT，THEEVERRCOMROLVARIABLEOFMOBILEROBOTISCALCULATED，111ENMEF．O咖ALI∞CON刪OFMULTIPLEMOBILEROBOTSISAVAILABLE．KEYWORDSSIMULATIONSPACECR硪，MUNIPLEMOBILEROBOTS，F(xiàn)OMLATIONCO曲．OL，PATLLPR0孕銣姍ING，D’AIGORITHNL．1I

簡介：西北工業(yè)大學(xué)碩士學(xué)位論文某型航空發(fā)動機大車轉(zhuǎn)速故障研究姓名涂洪忠申請學(xué)位級別碩士專業(yè)航空工程指導(dǎo)教師李華聰蔡士祥20051201墮I二些蘭型竺絲_ABSTRACTTHEMAXIMUMSTATECONTROLLAWUSEDISMAINTAINNLMAXCONSTUSINGROTORSPEEDADJUSTORTOADJUSTTHEFUELSUPPL弘MAINTAINⅡT8CONSTUSINGTURBINEPRESSURERATIOADJUSTORINACTUALUSE，ESPECIALLYDURINGTHETRIALRUNINFACTORYTHEMALFUNCTIONOFENGINEROTORMAXSPEEDSWING，SPEEDDROP，SPEEDRISESUDDENLY，ETC，OFTENOCCURSITISALWAYSNEEDTOREPLACETHEMAINFUELPUMPTOELIMINATEMALFUNCTION，ANDTHISBROUGHTLARGELOSSTOTHEFACTORYSERIOUSLYINFLUENCEDTHENORMALUSINGOFAEROENGINEINADDITION，BECAUSEOFTHEVARIOUSCAUSATIONOFMALFUNCTION，SOMEOFTHEMRELATEDTOAEROENGINE，ANDITISIMPOSSIBLETECURTHEDYNAMICBEHAVIOROFTHEAEROENGINEDURINGTHEMALFUNCTIONELIMINATINGONTHETEST_BED，ALLOFTHEMBRINGBIGTROUBLETOTHEMALFUNCTIONSTUDYINGANDELIMINATINGTHISPAPERPUTSTRESSONTHEROTORSPEEDADJUSTOROFTHEMAINFUELPUMPADJUSTOR，DISCUSSEDTHEADVANTAGESANDDISADVANTAGESOFTHECONTROLLAWBYSUMMARIZINGSTUDYINGANDELIMINATINGEXPERIENCES，ADOPTEDTHEORYANALYZINGANDEXPERIMENTATIONVALIDATING，F(xiàn)OUNDOUTTHEMAINCAUSATIONOFAEROENGINEMAXSPEEDMALFUNCTIONDUETOTHEMAINFUELPUMP；TOOKSOMEMEASURESCORRESPONDTOTHESTUDYINGRESULTINORDERTOREDUCETHEOCCURRENCEOFMALFUNCTION，INCREASETRIALRUNELIGIBILITYRATIOOFTHEAEROENGINEINFACTORY，INCREASEWORKEFFICIENCY，INCREASETHESAFETYANDRELIABILITYOFTHEAEROENGINEOTHERCAUSATIONOFTHEMALFUNCTIONISALSOSTUDIED

簡介：分類號UDC密級學(xué)位論文題目航空薄壁柱殼結(jié)構(gòu)在噪聲激勵下振動響應(yīng)的研究研究生姓名蘇志敏學(xué)科專業(yè)名稱航空宇航推進(jìn)理論與工程研究方向航空發(fā)動機強度、振動及噪聲申請學(xué)位碩士指導(dǎo)教師姓名沙云東指導(dǎo)教師職稱教授指導(dǎo)教師單位沈陽航空工業(yè)學(xué)院論文提交日期加／7年／月／口日論文答辯日期力帥7年／月加日學(xué)位授予日期年月EL答辯委員會主席參饒捩研豫評閱人韓漓訓(xùn)放趨犁過C教授沈陽航空工業(yè)學(xué)院2∞7年1月沈陽航空工業(yè)學(xué)院碩士學(xué)位論文ABSTRACTTHEESTIMATIONOFSONICFATIGUEISBASEDONTHEINVESTIGATIONOFVIBRATIONALRESPONSE，ESPECIALLYVIBRATIONALSTRESSRESPONSEOFTHINS1礬KN玳EXCITEDBYRANDOMACOUSTICLOADSASTOTHESONICFATIGUE，AMETHODFORVIBRATIONALRESPONSEESTIMATIONOFTHINSTRUCTUREUNDERRANDOMACOUSTICLOADSISMAINLYSTUDIEDINTHISPAPERTHEVIBRATIONALRESPONSEOFTHINCYLINDRICALSHELLSTORANDOMACOUSTICEXCITATIONHASBEENCALCULATEDANDANALYZEDUSINGANUMERICALMETHODBASEDONTHIS，THEDYNAMICSTRESSRESPONSEOFANAEROENGINEANNULARCOMBUSTORLINEREXCITEDBYTHEINNERNOISEHASBEENESTIMATED，F(xiàn)UL。FHERLNORE，THESTRESSRESPONSECHARACTERISTICSAREANALYZEDASWELL1SOMERELEVANTTHEORIESABOUTTHEVIBRATIONOFTHINCYLINDRICALSHELLSTRUCTUREAREDISCUSSED，ANDTHEDESCRIPTIVEMETHODSFORACOUSTICLOADSAREPRESENTEDBASEDONTHEVIBRATIONALTHEORIESOFTHINSHELLSTRUCTURE，THEFREEVIBRATIONEQUATIONSANDTHEFORCEDVIBRATIONEQUATIONSAREGIVEN，ANDTHEFORMULAFORCALCULATINGSTRESSISALSOPRESENTED2ANUMERICALMETHODFORTHESONICFATIGUESTRESSESTIMATIONHASBEENSTUDIED，WHICHISBASEDONTHEVIBRATIONALRESPONSEANALYSISOFTHINCYLINDRICALSHELLTOACOUSTICEXCITATIONUSINGCOUPLEDFINITEELEMENTMETHODFEMBOUNDARYELEMENTMETHODBEMTHEBASICTHEORIESANDRELEVANTEXPRESSIONSOFFEMANDBEM，ANDTHECOUPLINGRELATIONALEXPRESSIONSBETWEENTHETWOMETHODSARCDISCUSSEDINDETAILNLESTRUCTUREDYNAMICBEHAVIOURSAREANALYZEDBYFEM，ANDTHESOUNDFIELDAROUNDSTRUCTRREISSIMULATEDBYBEMBYSOLUTINGTHES饑JCTURALVIBRATIONEQUATIONANDTHEACOUSTICINTEGRALEQUATIONTHROUGHTHEINTERFACEBOUNDARYCONDITIONSSIMULTANEOUSLYTHEVIBRATIONALRESPONSEOFTHINCYLINDRICALSHELLUNDERACOUSTICEXCITATIONISOBTAINED3THECALCULATIONANDANALYSISOFVIBRATIONALRESPONSEOFTHINCYLINDRICALSHELLSTRUCTUREUNDERRANDOMACOUSTICLOADSARECOMPLETEDUTILIZINGTHECOUPLEDFEMBEM，THEVIBRATIONALDISPLACEMENTANDSTRESSRESPONSEOFONETHINCYLINDRICALSHELLANDTWOTHINCYLINDRICALSHELLSWITHDIFFERENTHOLESARECALCULATEDANDANALYZED，WHICHAREEXCITEDBYDIFFERENTSOLDPRESSURELEVELSPL，BANDLIMITEDACOUSTICLOADSTHERESPONSECHARACTERISTICSOFTHECYLINDRICALSHELLSTRUCTURESUNDERRANDOMACOUSTICLOADSAREOBTAINEDBYCOMPARINGTHEANALYZEDRESULTS4THECALCULATIONOFSTRESSRESPONSEOFANAEROENGINEANNULARCOMBUSTORLINEREXCITEDBYIII

簡介：沈陽航空工業(yè)學(xué)院碩士學(xué)位論文某型航空發(fā)動機燃油噴嘴霧化質(zhì)量試驗研究及其火焰筒頭部仿真姓名陳俊申請學(xué)位級別碩士專業(yè)航空宇航推進(jìn)理論與工程指導(dǎo)教師張寶誠20070101沈陽航空工業(yè)學(xué)院碩士學(xué)位論文ABSTRACTTHECURRENTSITUATIONANDDEVELOPMENTOFINJECTORSUSEDINTHEAEROENGINEANDGASTURBINEALHOMEANDABROADISCOMPREHENSIVELYEXAMINEDINTHISPAPERONTHEBASISOFHOMEAEROENGINEANDGROUNDGASTURBINESTUDYINGANDPRACTICALAPPLICATIONSOMECHARACTERISTICSOF310AEROENGINEFUELINJECTORHAVEBEENSTUDIEDHEREBYMEANOFMOREOVERALLTESTINGSOFTHE珂ECTOROILSUPPLINGPERFORMANCES，SPRAYCONEANGLECHANGINGCHARACTERS，DROPLETSIZEANDITSDISTRIBUTIONSLAWHAVEBEENOBTAINEDTHESEDATASHAWFINEATOMIZATIONQUALITY啪BEENSUREDWHENTHEFUELISSUPPLIEDBYTHEVICENOZZLEOFTHISINJECTORUNDERTHELOWOPERATIONCONDITIONENDTHESMDISABOUT13／AN，ANDUNDERTHEHIGHOPERATINGCONDITIONS，WHENTHEFUELISSUPPLIEDBYTHECOOPERATINGOFMAINNOZZLEANDVICENOZZLE，THESMDISABOUT15／AN，THEDROPLETSIZEDECN陽SESALONGWITLLTHEOPERATINGPRESSUREINCREASINGANDITHASINVARIABLETRENDWHENTHEPRESSUREINCREASESTOSOMEEXTENTVAILLE；晰廿ISPRAYDISTANCEINCREASING，SMDDECREASES；THESPRAYCONEANGLEISBASICALLYINDEPENDENTONOILSUPPLYINGPRESSURECHANGINGASIMPLERELATIONBETWEENTHEOILSUPPLYINGPRESSUREANDSAUTERMEANDIAMETERFSMDHASBEENOBTAMEDBYFITTINGOFDATAOFMAINOILLINETESTSANDITREPRESENTSBASICALLYANATOMIZATIONQUALITYATCOOPERATIONOFMAINVICEOILLINEANDOFFERSAREFERENCEFORMULAFORTECHNICALIRIMATIOLLFORSTUDYINGOFTHEINTERACTIONBETWEENTHEPRESSUREATOMIZATIONINJECTORANDTHEAIRFLOWSTRUCTUREINTHEDOMEOFTHEFLAMETUBEOFTHECOMBNSTORTHENUMEFICALSIMULATIONOFTHECOMBUSTIONCHAMBERUNDERHIGHESTOPERATIONCONDITIONBASBEENMADEALSOINTHISPAPERTHESEIMPORTANTCHAN址；觚SUCHASTEMPERATUREFIELDTHEVELOCITYFIELDOFTHEFLKMETUBEDOME，F(xiàn)UELDROPLETTRACE9ITSRESIDENTTIMEASWELLASSPRAYDISCHARGESTROKEAND80ONANDAIRSTREAMSTN“ML∞SUNDERTHEINTERACTIONDUETOTHEFUELSPMYANDAIRFLOWENTEREDINTOFLAMETUBEDOMEHAVEBEENPROVIDEDTHESERESULTSHAVEGIVENRELIABLEREFERENCESANDBASICDATAFORTHECOMBERANDI瑪烈TORDESIGNIMPROVEMENTANDDEVELOPMENT，ANDHAVESOMEDIRECTIONMEANINGKEYWORDCOMBUSTIONCHAMBEROILSUPPLYINGPERFORMANCEATOMIZATIONCHARACTERSNUMERICALSIMULATIONH

簡介：哈爾濱工業(yè)大學(xué)碩士學(xué)位論文基于VAPS下虛擬航空儀表的開發(fā)王大勇哈爾濱工業(yè)大學(xué)2006年6月CLASSIFIEDINDEXTP3919V2491V2494V21178UDC629708DISSERTATIONFTHEMASTERDEGREEINENGINEERINGTHEDEVELOPMENTOFVIRTUALAIRCRAFTINSTRUMENTSBASEDONVAPSCIDATEWANGDAYONGSUPERVISPROFHANJUNWEIACADEMICDEGREEAPPLIEDFMASTEROFENGINEERINGSPECIALTYMECHATRONICENGINEERINGAFFILIATIONSCHOOLOFMECHANICALELECTRICALENGINEERINGDATEOFDEFENCEJUNE2006