簡介：南京航空航天大學碩士學位論文XRF和顯微圖像技術在航空發(fā)動機智能監(jiān)測中的綜合應用姓名羅鋒申請學位級別碩士專業(yè)載運工具運用工程指導教師李艷軍20090101XRF和顯微圖像技術在航空發(fā)動機智能監(jiān)測中的綜合應用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)大學碩士學位論文航天器軌道動力學仿真技術研究姓名白紹竣申請學位級別碩士專業(yè)一般力學與力學基礎指導教師王日新20050601哈爾濱工業(yè)大學工學碩士學位論文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科專業(yè)名稱航空宇航推進理論與工程研究方向航空發(fā)動機燃燒設計與分析技術申請學位碩士指導教師姓名徐讓書指導教師職稱教授指導教師單位沈陽航空工業(yè)學院論文提交日期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)學院2007年1月沈陽航空工業(yè)學院頓十學位淪文ABSTRAETENGINEERINGAPPLICABILITYOFAEROENGINECOMBUSTORCFDHASBEENRESEARCHEDANDVERIFIEDWITHACERTAINENGINECOMBUSTORASTHEPROTOTYPETHEGOALISTOVERIFYANDVALIDATETHEENGINEERINGAPPLICABILITYOFNUMERICALCALCULATIONMETHODANDVARIOUSPHYSICALMODEISINTHEAEROENGINECOMBUSTORCFDTHISPAPERBRIEFLYDESCRIBESTHESTATUSANDDEVELOPMENTOFCOMBUSTORCFDENGINEERINGAPPLICABILITYWITHDEEPLYINVESTIGATIONATHOMEANDABROADTHEWORKPROGRESSOFTHEAEROENGINECOMBUSTORANDTHEORYOFMULTIDISCIPLINARYCFDISGIVENINDETAIL，ANDTHENTHERESEARCHPROJECTISPUTFORWORDANDNUMERICALMODELSAREBUILTTHESOLUTIONDOMAINOFTHEPROBLEMISDELIMITEDANDSIMPLIFIEDINTHESIMULATION，FILMCOOLINGHOLEROWSISSUBSTITUTEDWITHSLOTSFILLEDWITHPOROUSMEDIATOSIMPLIFYTHEGEOMETRYOFTHECOMBUSTOR；THESOLUTIONDOMAINISMESHEDWITHMANUALHEXAHEDRONCOREMETHODTHESIMULATIONCHOOSESREAL拓ABLEKETURBULENCEMODEL，PRESSURESWIRLATOMIZERMODE、ANDNONPREMIXEDCOMBUSTIONMODE、TOSIMULATETHETURBULENTFLOW，FUELSPRAYANDTURBULENTCOMBUSTION；THERELATIONSOFMATERIALTHERMOLPROPERTIESWITLLTEMPERATUREAREFITTEDUSINGATEMPERATUREDEPENDENTFUNCTIONTHEGOVERNINGEQUATIONSARESOLVEDUSINGCOMMERCIALCFDSOFTWAREONAHIGHPERFORMANCECOMPUTERCLUSTERHPCCWITHPARALLELPROCESSINGANDHIGHORDERDESCRETIZATIONSCHEME，THENUMERICALSOLUTIONOFFLOW，FUELSPRAYANDTOWPHASEFLOWANDCOMBUSTIONINTHECOMBUSTORHAVEBEENOBTAINEDTHEENGINEERINGAPPLICABILITYOFTHEAEROENGINCCOMBUSTORCFDISDISCUSSEDBYANALYZINGTHESOLUTIONANDCOMPARINGWITHEXPERIMENTALDATATHERESULTSINDICATETHATTHECALCULATIONISREASONABLEANDSATISFIESTHEREQUIREMENTOFENGINEERINGTHISPAPERVALIDATESTHEENGINEERINGAPPLICABILITYOFTHECOMBUSTORNUMERICALSIMULATIONANDALSOPOINTSOUTTHEPROBLEMOFTHECOMBUSTORMODELTHATNEEDSTOBEIMPROVED，THECONCLUSIONISMEANINGFULFORCOMBUSTORDESIGNANDRESEARCHKEYWORDSCFD；AIROENGINECOMBUSTOR；ENGINEERINGAPPLICABILITY；SPRAY；COMBUSTION

簡介：中國民用航空學院碩士學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位級別碩士專業(yè)交通運輸規(guī)劃與管理指導教師徐肖豪聶潤兔20060426

簡介：天津大學碩士學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位級別碩士專業(yè)測試計量技術及儀器指導教師王向軍20070101ABSTRACTAIRBORNEFIRECONTROLCAMERAGUNISAKINDOFPHOTOGRAPHICANDRECORDINGEQUIPMENTADOPTEDGENERALLYONTHEFIGHTERPLANEITISOFTENINSTALLEDONTHEAIRFOIL，AIRCRAFTNOSEANDCOCKPITWHENFIREBUTTONISPRESSED，CAMERAGUNTAKESPHOTOSOFTARGETALONEORTOGETHERWITHGUNSYSTEMTHEEFFECTOFTRAININGORCOMBATCANBECHECKEDBYWHATCAMERAGUNSHOTATPRESENTTRADITIONALFILMCAMERAGUNHASBEENMOSTWIDELYUSEDONTHEFIGHTERPLANEFILMCAMERAGUNCANNOTSATISFYTHEFLIGHTTRAININGPURPOSEASARESULTOFSOMEDISADVANTAGESOFFILM，SUCHASHIGHCOSTLOWACCURACYANDWHICHISHARDTOSAVETHEIMAGEWHICHISCOLLECTEDBYCAMERAGUNSHOULDBEINTERPRETEDANDANALYZEDWHENTHEFLIGHTTRAININGISFINISHEDTHEREARETWOKINDSOFINTERPRETATIONMETHODBYUSINGFILMCAMERAGUNWHENTHEFLIGHTTRAININGISFINISHEDONEISEMPIRICALINTERPRETATION，THEOTHERISMANUALINTERPRETATIONEMPIRICALINTERPRETATIONCALLWORKEFFECTIVELYWHENTHESHOOTINGDISTANCEISSHORTANDAIRMANMUSTHAVERICHEXPERIENCECOMPAREDWITHTHEEMPIRICALINTERPRETATIONMANUALINTERPRETATIONISOFSOMEACCURACYBUTTHISMETHODISCOMPLEXWHICHNEEDADJUSTMAGNIFICATIONOFIMAGEANDSELECTDIFFERENTINTERPRETATIONACCORDINGTODIFFERENTFIREKINDSITISNECESSARYTOIMPROVETHETRADITIONALFILMCAMERAGUNANDINTERPRETATIONMETHODWITHTHEIMPROVEMENTOFARMYEQUIPMENTANDTHEPROGRESSOFTRAININGREQUIREMENTSTHISPAPERUSESDIGITALEQUIPMENTTORECORDFIRINGEFFECTTHEDESIGNWHICHISCOMPOSEDOFCMOSIMAGINGSENSORUSINGFORIMAGINGCHIP，HIGHCAPACITYFLASHUSINGFORDATAMEMORYANDCPLDUSINGFORCONTROLUNITCANREPLACEFILMCAMERAGUNUSBDATASWITCHISDESIGNEDINORDERTOTRANSFERDATAWHICHISCOLLECTEDBYDIGITALCAMERAGUNTOPCATTITUDEANGLECANBECALCULATEDBYIMAGEANALYSISANDSPECIFICALGORITHMFIRSTOFALL，ASERIESOFIMAGESPREPROCESSINGTECHNIQUESWASTAKENTOEXTRACTTHEPRECISEEDGEOFTARGETIMAGETHEFOURCHARACTERISTICPOINTSOFTHEAIRCRAFTAREEXTRACTEDAFTERIDENTIFYINGTARGETPROFILEANDTHEKEYPOINTCANALSOBEOBTAINEDTHEMEASUREMENTPRINCIPLESANDMETHODOFAIRCRAFTATTITUDEANGLEBASEDONASINGLEIMAGEPLANEISRESEARCHEDBYUSINGPINHOLEPROJECTIONMODELBASEDONTHEKNOWNPARAMETERSINFORMATIONOFTHEAIRCRAFTANDOPTICALSYSTEMSINFORMATION，AIRCRAFT

簡介：沈陽航空工業(yè)學院碩士學位論文噪聲載荷作用下航空薄壁殼體的隨機振動響應姓名廖海濤申請學位級別碩士專業(yè)安全技術及工程指導教師王克明20070201沈陽航空工業(yè)學院碩士學位論文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學科分類號080202碩士學位論文航空多電發(fā)動機DCDC變換器數字化控制研究研究生姓名盧彬彬學科、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肖玲斐副教授南京航空航天大學研究生院能源與動力學院二О一六年三月NANJINGUNIVERSITYOFAERONAUTICSASTRONAUTICSTHEGRADUATESCHOOLCOLLEGEOFENERGYPOWERENGINEERINGDIGITALCONTROLRESEARCHOFDCDCCONVERTERSFMEELECTRICGASTURBINEENGINESATHESISINAEROSPACEPROPULSIONTHEYENGINEERINGBYLUBINBINADVISEDBYASSOCIATEPROFESSXIAOLINGFEISUBMITTEDINPARTIALFULFILLMENTOFTHEREQUIREMENTSFTHEDEGREEOFMASTEROFENGINEERINGMARCH2016

簡介：西北工業(yè)大學碩士學位論文混合維數航空發(fā)動機總體性能計算程序構架初步研究姓名葉緯申請學位級別碩士專業(yè)航空宇航推進理論與工程指導教師陳玉春20070301西北工業(yè)大學碩十學付論文ABSⅡ認CTABSTRACTTHEAEROEN雩IILEPERFO珊ALLCESIMULATIONCOULD如RECASTEN百NEP曲咖鋤CE；∞DLLCEMANYLARGESCALEKLRDWARETESTS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)大學碩士學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位級別碩士專業(yè)飛行器設計指導教師羅建軍20070301西北工業(yè)大學碩士學位論文英文摘要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)大學碩士學位論文航空燃氣渦輪發(fā)動機起動過程數值模擬研究姓名王永杰申請學位級別碩士專業(yè)人機與環(huán)境工程指導教師王占學20060320ABSTRACTTHEDIGITALCOMPUTERSIMULATIONOFSTARTINGCONDITIONSFORAEROGASTURBINEENGINEISALWAYSADIFFICULTYINENGINEPERFORMANCENUMERICALMODELINGATPRESENT，THEENGINEPERFORMANCENUMERICALSIMULATIONTECHNOLOGYFORABOVEIDLECONDITIONISQUITESUCCESSFULHOWEVERFORTHESUBIDLECONDITIONS，ASWITHOUTTHEENGINECOMPONENTCHARACTERISTICS，CENTERINGAROUNDEXTENDINGTHECOMPONENTMAPFORLOWSPEED，LOWFLOWCONDITIONSANDSTARTINGCONDITIONNUMERICALMODELING，WORKISCONTINUOUSLYBEINGDONEANDFARFROMOVERAFTERSYNTHETICALLYEXAMINEDSEVERALKINDSOFMETHODSFOREXTENDINGCOMPONENTMAPSINTOTHELOWSPEEDOPERATINGREGIONWHICHCANBEAVAILABLEFROMTHEPUBLISHEDLITERATURE，AMETHODTHATISNEWERALLOVERTHEWORLDISUSED，WHICHBASEDONTHECHARACTERISTICSIMILARITYLAWSFORFANANDPUMPMACHINESANDUSESANEXPONENTARITHMETICTOEXTRAPOLATETHEENGINECOMPONENTMAPS，ACCORDINGTOTHISMETHOD，THEMATHEMATICALMODELANDSOFTWAREUSEDFOREXTENDINGENGINECOMPONENTLOWSPEEDREGIONMAPSISDEVELOPEDTHISRESEARCHREFERREDTOTHEGENERALSIMPLIFIEDCOMPONENTLEVELENGINESTARTMODELSANDTHEONEDIMENSIONMODELS，CONSIDERINGTHEFEATUREOFTHEENGINEPERFORMANCESIMULATIONPROGRAM，ANDDEVELOPEDANENGINESTARTMODELFORSIMULATINGTHEENGINESTARTINGCONDITIONSUSINGTHISMODELANDTHEEXPANDEDENGINECOMPONENTMAPS，FINALLYANOTHERSOFTWAREISFINISHEDTOMODELINGAEROGASTURBINEENGINESTARTINGCONDITIONSTHISSOFTWAREAPPLIESCONVENTIONALCOMPONENTMATCHINGPRINCIPLESTOTHEENGINESTATINGMODELING，SOTHEKEYATTENTIONTOTHEVARIATIONOFTORQUE，ROTATINGSPEEDANDTURBINEINLETTEMPERATUREDURINGSTARTINGPROCESSCANBEREVEALEDINORDERTOPROVETHEVALIDITYOFTHESOFTWAREDEVELOPEDBYTHISRESEARCH，AHOMEMADETURBOFANTYPEENGINEISUSEDASTHEEXAMPLEANDITSSTARTINGANDACCELERATINGCONDITIONWASSIMULATEDCOMPAREDTHESIMULATEDDATAWITHTHETESTEDDATA，ACONCLUSIONCALLBEMADETHATTHESOFTWAREISVALIDANDHASCERTAINPRECISION，SOITCANBEUSEDINENGINEERINGPRACTICEKEYWORDSGASTURBINEENGINE，STARTINGPROCESS，LOWSPEEDCOMPONENTMAP，NUMERICALSIMULATIONIL

簡介：西北工業(yè)大學碩士學位論文模擬航天器控制基礎研究姓名郭雷申請學位級別碩士專業(yè)飛行器設計指導教師王志剛20070301西北工業(yè)大學碩士論文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ALGODTHM，ISPMFOM訓，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，FOMLATIONCO曲．OL，PATLLPR0孕銣姍ING，D’AIGORITHNL．1I

簡介：西北工業(yè)大學碩士學位論文某型航空發(fā)動機大車轉速故障研究姓名涂洪忠申請學位級別碩士專業(yè)航空工程指導教師李華聰蔡士祥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，FOUNDOUTTHEMAINCAUSATIONOFAEROENGINEMAXSPEEDMALFUNCTIONDUETOTHEMAINFUELPUMP；TOOKSOMEMEASURESCORRESPONDTOTHESTUDYINGRESULTINORDERTOREDUCETHEOCCURRENCEOFMALFUNCTION，INCREASETRIALRUNELIGIBILITYRATIOOFTHEAEROENGINEINFACTORY，INCREASEWORKEFFICIENCY，INCREASETHESAFETYANDRELIABILITYOFTHEAEROENGINEOTHERCAUSATIONOFTHEMALFUNCTIONISALSOSTUDIED

簡介：分類號UDC密級學位論文題目航空薄壁柱殼結構在噪聲激勵下振動響應的研究研究生姓名蘇志敏學科專業(yè)名稱航空宇航推進理論與工程研究方向航空發(fā)動機強度、振動及噪聲申請學位碩士指導教師姓名沙云東指導教師職稱教授指導教師單位沈陽航空工業(yè)學院論文提交日期加／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放趨犁過C教授沈陽航空工業(yè)學院2∞7年1月沈陽航空工業(yè)學院碩士學位論文ABSTRACTTHEESTIMATIONOFSONICFATIGUEISBASEDONTHEINVESTIGATIONOFVIBRATIONALRESPONSE，ESPECIALLYVIBRATIONALSTRESSRESPONSEOFTHINS1礬KN玳EXCITEDBYRANDOMACOUSTICLOADSASTOTHESONICFATIGUE，AMETHODFORVIBRATIONALRESPONSEESTIMATIONOFTHINSTRUCTUREUNDERRANDOMACOUSTICLOADSISMAINLYSTUDIEDINTHISPAPERTHEVIBRATIONALRESPONSEOFTHINCYLINDRICALSHELLSTORANDOMACOUSTICEXCITATIONHASBEENCALCULATEDANDANALYZEDUSINGANUMERICALMETHODBASEDONTHIS，THEDYNAMICSTRESSRESPONSEOFANAEROENGINEANNULARCOMBUSTORLINEREXCITEDBYTHEINNERNOISEHASBEENESTIMATED，FUL。FHERLNORE，THESTRESSRESPONSECHARACTERISTICSAREANALYZEDASWELL1SOMERELEVANTTHEORIESABOUTTHEVIBRATIONOFTHINCYLINDRICALSHELLSTRUCTUREAREDISCUSSED，ANDTHEDESCRIPTIVEMETHODSFORACOUSTICLOADSAREPRESENTEDBASEDONTHEVIBRATIONALTHEORIESOFTHINSHELLSTRUCTURE，THEFREEVIBRATIONEQUATIONSANDTHEFORCEDVIBRATIONEQUATIONSAREGIVEN，ANDTHEFORMULAFORCALCULATINGSTRESSISALSOPRESENTED2ANUMERICALMETHODFORTHESONICFATIGUESTRESSESTIMATIONHASBEENSTUDIED，WHICHISBASEDONTHEVIBRATIONALRESPONSEANALYSISOFTHINCYLINDRICALSHELLTOACOUSTICEXCITATIONUSINGCOUPLEDFINITEELEMENTMETHODFEMBOUNDARYELEMENTMETHODBEMTHEBASICTHEORIESANDRELEVANTEXPRESSIONSOFFEMANDBEM，ANDTHECOUPLINGRELATIONALEXPRESSIONSBETWEENTHETWOMETHODSARCDISCUSSEDINDETAILNLESTRUCTUREDYNAMICBEHAVIOURSAREANALYZEDBYFEM，ANDTHESOUNDFIELDAROUNDSTRUCTRREISSIMULATEDBYBEMBYSOLUTINGTHES饑JCTURALVIBRATIONEQUATIONANDTHEACOUSTICINTEGRALEQUATIONTHROUGHTHEINTERFACEBOUNDARYCONDITIONSSIMULTANEOUSLYTHEVIBRATIONALRESPONSEOFTHINCYLINDRICALSHELLUNDERACOUSTICEXCITATIONISOBTAINED3THECALCULATIONANDANALYSISOFVIBRATIONALRESPONSEOFTHINCYLINDRICALSHELLSTRUCTUREUNDERRANDOMACOUSTICLOADSARECOMPLETEDUTILIZINGTHECOUPLEDFEMBEM，THEVIBRATIONALDISPLACEMENTANDSTRESSRESPONSEOFONETHINCYLINDRICALSHELLANDTWOTHINCYLINDRICALSHELLSWITHDIFFERENTHOLESARECALCULATEDANDANALYZED，WHICHAREEXCITEDBYDIFFERENTSOLDPRESSURELEVELSPL，BANDLIMITEDACOUSTICLOADSTHERESPONSECHARACTERISTICSOFTHECYLINDRICALSHELLSTRUCTURESUNDERRANDOMACOUSTICLOADSAREOBTAINEDBYCOMPARINGTHEANALYZEDRESULTS4THECALCULATIONOFSTRESSRESPONSEOFANAEROENGINEANNULARCOMBUSTORLINEREXCITEDBYIII

簡介：沈陽航空工業(yè)學院碩士學位論文某型航空發(fā)動機燃油噴嘴霧化質量試驗研究及其火焰筒頭部仿真姓名陳俊申請學位級別碩士專業(yè)航空宇航推進理論與工程指導教師張寶誠20070101沈陽航空工業(yè)學院碩士學位論文ABSTRACTTHECURRENTSITUATIONANDDEVELOPMENTOFINJECTORSUSEDINTHEAEROENGINEANDGASTURBINEALHOMEANDABROADISCOMPREHENSIVELYEXAMINEDINTHISPAPERONTHEBASISOFHOMEAEROENGINEANDGROUNDGASTURBINESTUDYINGANDPRACTICALAPPLICATIONSOMECHARACTERISTICSOF310AEROENGINEFUELINJECTORHAVEBEENSTUDIEDHEREBYMEANOFMOREOVERALLTESTINGSOFTHE珂ECTOROILSUPPLINGPERFORMANCES，SPRAYCONEANGLECHANGINGCHARACTERS，DROPLETSIZEANDITSDISTRIBUTIONSLAWHAVEBEENOBTAINEDTHESEDATASHAWFINEATOMIZATIONQUALITY啪BEENSUREDWHENTHEFUELISSUPPLIEDBYTHEVICENOZZLEOFTHISINJECTORUNDERTHELOWOPERATIONCONDITIONENDTHESMDISABOUT13／AN，ANDUNDERTHEHIGHOPERATINGCONDITIONS，WHENTHEFUELISSUPPLIEDBYTHECOOPERATINGOFMAINNOZZLEANDVICENOZZLE，THESMDISABOUT15／AN，THEDROPLETSIZEDECN陽SESALONGWITLLTHEOPERATINGPRESSUREINCREASINGANDITHASINVARIABLETRENDWHENTHEPRESSUREINCREASESTOSOMEEXTENTVAILLE；晰廿ISPRAYDISTANCEINCREASING，SMDDECREASES；THESPRAYCONEANGLEISBASICALLYINDEPENDENTONOILSUPPLYINGPRESSURECHANGINGASIMPLERELATIONBETWEENTHEOILSUPPLYINGPRESSUREANDSAUTERMEANDIAMETERFSMDHASBEENOBTAMEDBYFITTINGOFDATAOFMAINOILLINETESTSANDITREPRESENTSBASICALLYANATOMIZATIONQUALITYATCOOPERATIONOFMAINVICEOILLINEANDOFFERSAREFERENCEFORMULAFORTECHNICALIRIMATIOLLFORSTUDYINGOFTHEINTERACTIONBETWEENTHEPRESSUREATOMIZATIONINJECTORANDTHEAIRFLOWSTRUCTUREINTHEDOMEOFTHEFLAMETUBEOFTHECOMBNSTORTHENUMEFICALSIMULATIONOFTHECOMBUSTIONCHAMBERUNDERHIGHESTOPERATIONCONDITIONBASBEENMADEALSOINTHISPAPERTHESEIMPORTANTCHAN址；觚SUCHASTEMPERATUREFIELDTHEVELOCITYFIELDOFTHEFLKMETUBEDOME，FUELDROPLETTRACE9ITSRESIDENTTIMEASWELLASSPRAYDISCHARGESTROKEAND80ONANDAIRSTREAMSTN“ML∞SUNDERTHEINTERACTIONDUETOTHEFUELSPMYANDAIRFLOWENTEREDINTOFLAMETUBEDOMEHAVEBEENPROVIDEDTHESERESULTSHAVEGIVENRELIABLEREFERENCESANDBASICDATAFORTHECOMBERANDI瑪烈TORDESIGNIMPROVEMENTANDDEVELOPMENT，ANDHAVESOMEDIRECTIONMEANINGKEYWORDCOMBUSTIONCHAMBEROILSUPPLYINGPERFORMANCEATOMIZATIONCHARACTERSNUMERICALSIMULATIONH

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