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簡介:南京理工大學(xué)博士學(xué)位論文高推重比航空發(fā)動機整體精鑄燃燒室機匣用高強度高溫合金研究姓名陳偉申請學(xué)位級別博士專業(yè)材料學(xué)指導(dǎo)教師陳光樓瑯洪20070901摘要博士論文前水平相當(dāng),滿足新一代高推重比航空發(fā)動機精鑄燃燒室機匣用材要求。關(guān)鍵詞高溫合金,微觀組織,力學(xué)性能,組織穩(wěn)定性。II
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頁數(shù): 147
大?。?11.52(MB)
子文件數(shù):
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簡介:西北工業(yè)大學(xué)碩士學(xué)位論文面向?qū)ο蟮暮娇瞻l(fā)動機性能仿真系統(tǒng)設(shè)計與實現(xiàn)姓名徐魯兵申請學(xué)位級別碩士專業(yè)熱能工程指導(dǎo)教師潘宏亮20070301西北工業(yè)大學(xué)碩十學(xué)位論文ABSTRACTABSTRACTHTHETHESISTHEOBJECTORIENTEDTECHNOLOGYANDLAYEREDDESIGNMETHODHAVEBEENUSEDTOBUILDAPERFORMANCESIMULATIONSYSTEMFORAEROENGINEBASEDONFUNCTIONANALYSISOFCOMPONENTSINREPRESENTATIVETURBOJETANDTURBOFANENGINE,THESUMMARIZEDMATHEMATICALMODELWASBUILTUPBYMODULARIZATIONMODELINGMETHODANDPROGRAMMEDUNDERCLANGUAGEVARIOUSTASKSCANBEUNDERTAKENUNDERTHISUNIONFRAMEWORKSUCH弱SIMULATIONOFDESIGNANDOFFDESIGNPERFORMANCEATSTEADYSTATEANDDYNAMICPROCESSANDFORENGINEWITHAFTERBURNNERASWELLVALIDATIONONVARIOUSEXAMPLESDEMONSTRATEDPRELIMINARILYTHEFLEXIBIFITYOFTHEFRAMEWORKTHEREALTIMESIMULATIONOFAONESPOOLTURBOJETENGINESYSTEMWITHFUELCONTROLLERHASBEENSUCCESSFULLYIMPLEMENTEDONTHEBASEOFTHESIMULATIONSOFTWAREFIRSTLYTHECOMPOSITIVECOMPONENTS,F(xiàn)UNCTIONANDCORRELATIVITYOFFLOWPARAMETEROFAREPRESENTIVEENGINEWEREANALYZEDTHEORETICALLYINDETAILSECONDLYTHEENGINEWASMODELIZEDBYMODULARIZATIONMODELINGMETHONDTHIRDLYAFTERDISCUSSINGTHENUMERICALMETHODS,THESIMULATIONSYSTEMWITHTHECLASSHIBERARCHYCHARACTERWASCONSTRUCTEDBYTHEOBJECTORIENTEDTECHNOLOGYANDTHEDOWNTOPANALYTICALMETHODANDPROGRAMMEDUNDERCLANGUAGEFINALLYTHESOFTWAREFORTHEARCOCNGINEPERFORMANCESIMULATIONSYSTEMWASBUILTONTHEBASEOFTRIHIBERARCHYSOFTWAREDEVELOPMENTMETHODWHICHISSUITFORTHEOBJECTORIENTEDSIMULATIONSYSTEMMOSTANDGRATIFIESTHEREQUIREMENTSOFPERFORMANCESIMULATIONTHEBUILTSIMULATIONSYSTEMFRAMEWORKANDSIMULATIONSOFTWAREFORAEROENGINEPERFORMANCECANBEUSEDASAPOTENTIALTOOLFORPERFORMANCEANALYSISANDSIMULATIONOFENGINEITCANALSOPROVIDEASGUIDANCEFORDESIGNANDSTUDYOFENGINECONTROLLERBESIDES,THERELIABLEENGINEMODELSHAVEBEENPROVIDEDFORIMPLEMENTINGTHEASSOCIATEDSIMULATIONOFAIRPLANEENGINEWITHCLOSEDLOOPSPEEDCONTR01THEAPPLICATIONOFTHISSIMULATIONSYSTEMHASPROVEDFUNCTIONALINANENGINEERINGPROJECT【KEYWORDS】AEROENGINE,PERFORMANCEANALYSIS,MODELINGANDSIMULATION,OBJECTEORIENTEDⅡ
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頁數(shù): 92
大?。?3.05(MB)
子文件數(shù):
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簡介:中南大學(xué)碩士學(xué)位論文航空機輪防滑剎車控制器的設(shè)計及算法研究姓名劉國良申請學(xué)位級別碩士專業(yè)控制理論與控制工程指導(dǎo)教師廖力清20070522ABSTRACTTHEPERFORMANCEOFANTISKIDBRAKINGSYSTEMDETERMINESTHESAFETYOFLIFTINGANDRETURNING,CONTINUOUSWORKING,AIRPORTADAPTINGDIGITALANTISKIDBRAKINGCONTROLLERRESPONDSMORESWIFTLYTHANANALOGOUSANTISKIDBRAKINGCONTROLLERANDCOMPLEXCONTROLALGORITHMCANBECARRIEDOUTINDIGITALANTISKIDBRAKINGCONTROLLERWHICHALSOHASADVANTAGESOFSTABILITYROBUSTNESSANDADAPTABILITYANDHIGHLYEFFICIENCYITISVERYMEANINGFULFORAIRCRAFT’STAKEOFFANDLANDINGANDOURCOUNTRY’SAIRCRAFTDEVELOPMENTTESEARCHANDDESIGNTHEDIGITALANTISKIDBRAKINGCONTROLLERWHICHISTHECRITICALPROBLEMTOANTISKIDBRAKINGSYSTEMAPPLYINGADVANCEDCONTROLALGORITHMTHEOPERATINGPRINCIPLEANDTHESYSTEMSTRUCTUREANDPRESENTSTUDYSTATUSOFBOTHHEREANDABROADAREINTRODUCEDINTHISPAPERACCORDINGTOTHEFUNCTIONALREQUIREMENTSOFANTISKIDBRAKINGSYSTEM,DIGITALANTISKIDBRAKINGCONTROLLERISDESIGNEDBASEDOLATMS320F2812,WHICHISDIGITALSIGNALPROCESSORDSPWITHHIGHLYPERFORMANCEASTHECORECHIPOVERALLDESIGN,HARDWAREDESIGN,ALGORITHMSRESEARCHANDSOFTWAREDESIGNOFTHECONTROLLERAREEXPATIATEDINTHISPAPERCIRCUITSOFINSTRUCTIONSIGNALANDWHEELSPEEDSIGNALDISPOSAL,ERVOVALVEDRIVE,SWITCHINGVALUEADAPTSYSTEM’SFAULTSDETECTANDCOMMUNICATIONMODULEISEXPLAINEDINDETAILTHERELIABILITYOFTHECONTROLLERISPRESENTEDTOOTOOBTAINMAXIMUMFIICTIONCOEFFICIENT,‘‘APERFECTSLIPRATIOIDENTIFIER’CONSTRUCTEDBYANNARTIFICIALNEURALNETWORKTOGETTHEREALTIMEPERFECTSLIPRATIOOWINGTOTHECOMPLEXNONLINEAROFTHEANTISKIDBRAKINGSYSTEM,ANTISKIDBRAKINGFUZZYCONTROLLERISDESIGNEDANDANTALGORITHMISUSEDTOOPTIMIZETHEFUZZYCONTROLTABLES’COMPUTERSIMULATIONSHOWSIMPROVEMENTSOFTHESYSTEMINPRECISIONSTABILITY,ROBUSTNESSANDADAPTABILITYTOCOMPLICATEDWORKCONDITIONSALSOTHEOPTIMIZEDFUZZYCONTROLALGORITHMBYANTALGORITHMCARLTRACKTHEPERFECTSLIPRATIONRAPIDLYANDEXACTLYKEYWORDSANTISKIDBRAKING,CONTROLLERFUZZYCONTROL,ANTCOLONYALGORITHMSⅡ
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上傳時間:2024-03-01
頁數(shù): 69
大?。?2.18(MB)
子文件數(shù):
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簡介:障潮鬻籜鏊辮‰姐曲J擂或麓⑧熏。絲。熏。蔫。未。。萋碩士學(xué)位論文題目航空發(fā)動機裝配數(shù)字化系統(tǒng)研究學(xué)科、專業(yè)指導(dǎo)教師申請學(xué)位日期作者曾亮航空宇航制造工程莫蓉二零零七年三月ABSTLACTASSEMBLYIST11ELASTSTAGEA11DONEOFTHEMOSTIMPORTAILTSTAGESINTHEMAKINGPROCESS111EQUAL時A11DEFFICIENCYOFAS辯MBLYHAVEFATALLYA艉CTEDTHEQUJLITY,CAPABIL時ANDE伍CIENCYOFAEROENGINC晰MMEHELPOFEXISTEDDESIGNANDMAKINGCRAROFAEROENGINETBPROMOTETLLEASSEMBLYQUALITYAILDTHEE丘ICIENCYOFAEROENGINC,EILTERPRISESHAVEIMPLEMEMEDANDAPPLIED姍YINFB咖ATIONMANAGEMEMSYSTEMS,SUCHASCAPP,ERPETCBUTTHEREAREMAILYPROBLEMSANLONGTHESESYSTEMS,INCIUDINGPOORLYINFORMATIONEXCHANGE,INFO珊ATIONREDUNDAILCYLOWSHARERATE,EVENRESULTSINJSOLATEDISLAFLDOFINFONLLATION;MEALLWBILEMEINFO腫ATIZATIONOFENTEFPRISEHASNOTOVERLAYITSEXECUTIVELAYERAND“STILLLACKSNECESSARYSYSTEMFORINFB唧ATIONCOLLECTIONALLDMANAGEMENTFORTLLEDIGITAJMALLAGEFNENTOFAEROENGINEASSEMBLYINFBHNATION,THISPAPERINVESTIGATEDTLLEBASICTECLLILOLOGYFORIMPLEMENTINGTHEI11TEGRATIONMALLAGEMENTOFASSEMBLY池FONNATION,ANDDEVELOPEDANAEMENGINEASSEMBLYDIGITAIIZATIONSYSTEMWHICHORIENTSTOTHE船SEMBLYEXECUTIVEENVIRDNMENT,T圭LLLSITREALIZEST圭LEINTEGRATIONATLDSHAREOFAEROENGINEASSEMBLYINFO衄ATIONWITHINENTERPRISEASSEMBLYEXECUTIVEENVIRONMENTISMEIMERSECTIONOFMATERIALNOWANDINFONNATIONNOW;ARLDTILEINTEGRATEDIILF0加1ATIONMANAGEMENTSYSTEMNEEDSTODEALWITLLARGEANDA11SORTSOFINFOMATION,T0SATIS母THESYSTEMREQUIREMEMS,MISPAPERMAINLYWORKEDONMEFOLLOWINGASPECTSANALYZINGANDDESIGNINGTHESYSTEMARCHITECTUREWIMOOA/00DTECLLLLOLOGY,TTLISPAPERDESIGNEDANDIMPLEMENTEDAFIVELAYERMODELSO舔TOGUARALLTEETHEEXTENSIBILITYAILDRELLSABIL毋OFTHESYSTEM,鋤DDIVIDEDTLIESYSTEMTOSEVERALSUBSYSTERNSAND鋤ALYZEDTHERELATJONSHJPSBE咖TLLEMTLLISPAPERDESIGFLEDTHESYSTEMFOLLILDATIONC1鵲SLIBRAR,REFERENCINGTOCLASSICALDESIGNPATTEMSANDILL】PLEMENTEDTLLERCUSABILITYANDEXTENSIBILITYOFFOUN刪ONDASSLIBRARYWHICHINCLUDESFOUNDATIONOBJECTLIBRARYAILDFOUNDATIONOBJECTMANAGEMENTLIBR哪THEDESIGNANDIMPLEMEMATIONOF恤MSIMPLIFIEDAND眥FIEDTHEPROCESSFORKINDSOF粥SEMBLYRELATEDINFORINATIONTHISPAPEFCONS仇1CTEDMEMODELOF弱SEMBLYINFOMLATIONAILDDESIGNEDCON℃SPONDINGFOUNDATIONDA乜B私ETABLES,AILDSETUPTHEFOMLS臼MCTUREOFPRODUCTIL
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上傳時間:2024-03-01
頁數(shù): 79
大?。?2.39(MB)
子文件數(shù):
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簡介:西北工業(yè)大學(xué)碩士學(xué)位論文航空發(fā)動機短艙流動與換熱的計算研究姓名馬明明申請學(xué)位級別碩士專業(yè)航空宇航推進理論與工程指導(dǎo)教師吳丁毅20070301西北工業(yè)大學(xué)碩士學(xué)位論文ABSTRACTAIRCRAFTNACCLLECOINPRISCSENGIILE,衄西NEC嬲INGAND∞CES∞RI鶴THETEMPE墻N】REINSIDE也ENACEUEIS毋汜ATLYHI曲BECAUSEOFHEAT缸缸SF酹丘OMENPIILE,ANDTHEACCES∞RIES瑚YWORKOMOFORDEFOREVENBEDAINAGEDWITHOUTRE鋤DN£山LES乜ⅫTI嘴ORE丘音CNVCCOOLIN舀TH盱EFORE,也E鍬NPERAMRESOFCERTAINPOINTSSHOILLDBEMDERLIⅡLITEDVALUEINMCEUEDESI目丑CRIT自J慨H也ISPAPER,也ECALCLLLATIONALME也ODSOFAIRNOW幽U西THEGENERALAIRCFARNACENESAREESTABLISHEDACCORDINGTOTHESTN】C1URECHJ|R∞TERISTICANDBLEEDING懾H卸MFBNNTHECALCLLLATIONMODELSOFNOWANDHCAT‰SF醯OFHELICOPTERNACELLEA塢CREATED;THENOW舡LDTCMPAALUREFIELDSA∞C唧UTCDWHENHELICOPTCRNACEUEISOPERATINGUNDERGR0ILNDM扣【IM恤STAL薯,ANDTHE∞SILLTSINDICA七E恤T也ETEMPERATURCSOFLRLONITORILLGPOINTSI11REAR_NACEUEEXCEEDTHELIMITEDVALUC,SOTHESTNKNLREOFNACELLESHOUKIBEIMDROVEDT0ACA恤EXTE仳1、ⅣOSCHEMESA托PRESENTEDTOIMPROVENACELLES廿UCT哪ETHEFLOW舡LDTEMPE船NLRC丘ELDSARECALCULATEDRESPECTIVELYTHERESULTSSHOW也ATTHEE丘B(yǎng)CTSOFNOWANDTEMPE瑚吡UEFIELDSHAVEBEENIMPROVCDINSOME既TELL_TCOMPAREDWI血THEORIGIILALONE越D也ETCMPE柏CI】RESOFM砌姍NGPOINTSARCLESSTH舭THELIMITL沮VALLLETHESCHEMESPRE∞NTEDIN也ISPAP盱A∞E丘B(yǎng)C吐VEONE啦EERINGAPPLICATIO也KEYWORDCN百NEN∽ELLE;PARTMONFBNN;DIRCCTFO皿;NOWFIELDS;TEM拼髓NLRE丘ELDSⅡ
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頁數(shù): 54
大小: 1.66(MB)
子文件數(shù):
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簡介:山東大學(xué)博士學(xué)位論文航空鋁合金殘余應(yīng)力及切削加工變形研究姓名唐志濤申請學(xué)位級別博士專業(yè)機械制造及其自動化指導(dǎo)教師劉戰(zhàn)強20080420山東大學(xué)博學(xué)位論文結(jié)果表明應(yīng)力主平面與試樣表面基本平行,銑削加工鋁合金表面殘余應(yīng)力近似處于二維平面應(yīng)力狀態(tài);采用X射線衍射和電解拋光逐層剝除相結(jié)合的方法,測試銑削加工航空鋁合金殘余應(yīng)力沿層深的分布規(guī)律,分析主軸轉(zhuǎn)速、進給速度、后刀面磨損量對加工殘余應(yīng)力分布規(guī)律的影響,結(jié)果表明銑削加工引入的殘余應(yīng)力沿層深的分布與后刀面磨損量密切相關(guān),其次是主軸轉(zhuǎn)速,而每齒進給量對殘余應(yīng)力的影響不大;建立三維雙刃斜角變切屑厚度有限元模型,采用KISTLER測力儀獲得銑削過程中的動態(tài)切削力分布,采用紅外熱像儀測試得到銑削過程中切屑中的最高溫度,通過有限元分析與試驗研究相結(jié)合,獲得不同切削條件下的工件已加工表面溫度場的分布規(guī)律?;跓嵋涣︸詈侠碚?,對銑削加工殘余應(yīng)力的產(chǎn)生機理進行解釋。建立航空鋁合金初始?xì)堄鄳?yīng)力的釋放與重分布引起加工變形的理論解析模型與有限元模型,基于有限元法分析材料切削去除過程中雙向毛坯初始?xì)堄鄳?yīng)力的釋放與重分布引起的矩形板工件加工變形規(guī)律,結(jié)果表明毛坯初始?xì)堄鄳?yīng)力的釋放與重分布造成了工件整體上的彎曲變形;采用組合函數(shù)近似表達銑削加工引入的殘余應(yīng)力,解決了有限元模型中加工殘余應(yīng)力的自平衡問題。研究銑削加工引入的殘余應(yīng)力引起的加工變形規(guī)律,得出結(jié)論加工引入的殘余拉伸或壓縮應(yīng)力造成了工件整體上的彎曲變形,加工殘余剪切應(yīng)力造成了工件整體上的扭轉(zhuǎn)變形,且扭轉(zhuǎn)變形量大于彎曲變形量;研究多框體零件隔框加工順序以及雙面結(jié)構(gòu)零件加工工藝對加工變形的影響,基于加工變形的最小化目標(biāo),得到最優(yōu)的隔框加工順序方案及工藝路線方案。綜合考慮毛坯初始?xì)堄鄳?yīng)力、裝夾效應(yīng)、銑削機械載荷、銑削熱載荷、加工引入的殘余應(yīng)力對加工變形的影響,建立多因素耦合作用下工件加工變形的預(yù)報模型;設(shè)計框類結(jié)構(gòu)件的高速銑削加工試驗,采用三坐標(biāo)測量機測量工件的加工變形,通過有限元模擬結(jié)果與試驗結(jié)果的比較,驗證預(yù)報模型的正確性。多因素耦合變形預(yù)報模型的建立為進一步研究加工變形的控制技術(shù)提供依據(jù)。本課題得到國家自然科學(xué)基金重點項目“大型航空整體結(jié)構(gòu)件加工變形機理及精度保障技術(shù)50435020”資助。關(guān)鍵詞整體結(jié)構(gòu)件;加工變形;鋁合金;毛坯初始?xì)堄鄳?yīng)力;加工殘余應(yīng)力。X
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上傳時間:2024-03-01
頁數(shù): 164
大?。?26.39(MB)
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簡介:南京航空航天大學(xué)碩士學(xué)位論文航空發(fā)動機二維模型燃燒室中碳黑顆粒生成數(shù)值模擬姓名李紅紅申請學(xué)位級別碩士專業(yè)環(huán)境工程指導(dǎo)教師劉勇20080101航空發(fā)動機二維模型燃燒室中碳黑顆粒生成數(shù)值模擬IIABSTRACTSOOTPARTICLESAREINEVITABLEOUTCOMEDURINGTHEHYDROCARBONFUELCOMBUSTIONWHICHARETHECOAGULATIONOFPAHSTHEYAREAIRPOLLUTANTSTHATAREHARMTOHUMANBODYCANMAKEASERIESOFATMOSPHERICENVIRONMENTEFFECTSINGASTURBINECOMBUSTSSOOTPARTICLESFMATIONRADIATIONCANAFFECTTHEACCURACYOFNUMERICALSIMULATIONESPECIALLYFTHEGASWALLTEMPERATUREINDERTOINVESTIGATESOOTPARTICLESDISTRIBUTIONINGASTURBINECOMBUSTSTHISPAPERPRESENTSDETAILEDMECHANISMSDETAILEDMODELOFSOOTFMATIONOXIDATIONTHEMAJCOMPONENTSCONCENTRATIONISGOTTENTHROUGHNUMERICALSIMULATIONOFCOMBUSTIONFLOWWITHC7H16DETAILEDCHEMICALKIICMECHANISMSTHENTHEYAREUSEDTOFEEDTHEMETHODOFMOMENTSTOGETTHESOOTPARTICLESDISTRIBUTIONUNDERTHETWODIMENSIONALBODYFITTEDGRIDTHETURBULENTACTERISTICSAREESTIMATEDBYKΕEQUATIONSTHEREACTINGRATIOISESTIMATEDBYEDDYDISSIPATIONCONCEPTMODELTHEFOURFLUXMODELISAPPLIEDTOPREDICTTHEHEATFLUXDISTRIBUTIONSSOASTOCONSIDERTHEINFLUENCEOFHEATRADIATIONONTHEGASTEMPERATUREWALLTEMPERATURETHEREACTINGMODELISPSRWHICHISUSEDINEVERYNODETHEMETHODOFMOMENTSISUSEDTODEALWITHSOOTPARTICLESSIZEDISTRIBUTIONTHEMECHANISMCOMPILERAPIFUNCTIONSOFCHEMKINCANSEPARATELYGENERATETHECONNECTINGDOCUMENTTREATCOMPLEXCHEMICALREACTIONITEMSDURINGTHEFTRANPROGRAMRUNNINGCONTROLVOLUMEMETHODISUSEDTODISCRETIZETHEGOVERNINGEQUATIONSONANONSTAGGEREDGRIDSYSTEMTHEDISCRETEEQUATIONSARESLOVEDWITHSIMPLEALGITHMTHEMETHODOFWALLFUNCTIONSINTHEARBITRARYCURVECODINATEISAPPLIEDTOTREATTHEPREDICTIONOFFLOWINTHENEARWALLREGIONTHEPAPERCONSIDERSFOURDIFFERENTKINDSOFEXCESSCOEFFICIENTTHREEVERTICALSECTIONOFGASTURBINECOMBUSTTHEANALOGYBETWEENTHERESULTTHEOTHERONEINTURBULENTJETDIFFUSIONFLAMEOFMETHANEAIRHAVEBEENTAKENVALIDATESTHEFEASIBILITYCRECTIONOFTHISMETHODPROCEDUREKEYWDSSOOTPARTICLESMETHODOFMOMENTSEDCMODELDETAILEDCHEMICALKIICMECHANISMENVIRONMENTALEFFECT
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頁數(shù): 80
大?。?1.31(MB)
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簡介:中圖分類號V2341論文編號102870214S041學(xué)科分類號080703碩士學(xué)位論文航空活塞發(fā)動機燃燒過程和特性的模擬研究研究生姓名劉國棟學(xué)科、專業(yè)動力機械及工程研究方向動力機械燃燒技術(shù)指導(dǎo)教師關(guān)玉璞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一三年十二月承諾書本人聲明所呈交的博/碩士學(xué)位論文是本人在導(dǎo)師指導(dǎo)下進行的研究工作及取得的研究成果。除了文中特別加以標(biāo)注和致謝的地方外,論文中不包含其他人已經(jīng)發(fā)表或撰寫過的研究成果,也不包含為獲得南京航空航天大學(xué)或其他教育機構(gòu)的學(xué)位或證書而使用過的材料。本人授權(quán)南京航空航天大學(xué)可以將學(xué)位論文的全部或部分內(nèi)容編入有關(guān)數(shù)據(jù)庫進行檢索,可以采用影印、縮印或掃描等復(fù)制手段保存、匯編學(xué)位論文。(保密的學(xué)位論文在解密后適用本承諾書)作者簽名日期
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頁數(shù): 75
大小: 6.52(MB)
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簡介:工程碩士學(xué)位論文某航空發(fā)動機軸承的研制某航空發(fā)動機軸承的研制佐景濤哈爾濱工業(yè)大學(xué)2008年6月CLASSIFIEDINDEXTB472UDC607DISSERTATIONFTHEMASTERDEGREEINENGINEERINGSTUDYONACERTAINBEARINGSOFAIRCRAFTENGINECIDATEZUOJINGTAOSUPERVISPROFCHENWEISHANACADEMICDEGREEAPPLIEDFMASTEROFENGINEERINGENGINEERINGFIELDMECHATRONICSENGINEERINGDATEOFALEXAMINATION7THJUN2008UNIVERSITYHARBININSTITUTEOFTECHNOLOGY
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上傳時間:2024-03-01
頁數(shù): 72
大?。?1.26(MB)
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簡介:學(xué)位論文題目基于線結(jié)構(gòu)光的航空發(fā)動機葉片三維形貌測量技術(shù)研究作者姓名廖駿盲審編號201707Z08012中圖分類號TN247盲審編號201707Z08012碩士學(xué)位論文基于線結(jié)構(gòu)光的航空發(fā)動機葉片三維形貌測量技術(shù)研究學(xué)科、專業(yè)儀器儀表工程專業(yè)代碼085203學(xué)位類別專業(yè)學(xué)位碩士專業(yè)學(xué)位碩士2017年6月RESEARCHONTHREEDIMENSIONALTOPOGRAPHYMEASUREMENTTECHNOLOGYOFAEROENGINEBLADEBASEDONLINESTRUCTURELIGHTADISSERTATIONSUBMITTEDFTHEDEGREEOFMASTERONINSTRUMENTMETERENGINEERINGBYLIAOJUNUNDERTHESUPERVISIONOFPROFXIAGUISUOCOLLEGEOFTESTINGOPTOELECTRONICENGINEERINGNANCHANGHANGKONGUNIVERSITYNANCHANGCHINAJUNE2017
下載積分: 5 賞幣
上傳時間:2024-03-01
頁數(shù): 88
大?。?8.07(MB)
子文件數(shù):
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簡介:南京航空航天大學(xué)碩士學(xué)位論文面向飛行器設(shè)計的航空專用網(wǎng)格關(guān)鍵技術(shù)的研究與實現(xiàn)姓名馬奕平申請學(xué)位級別碩士專業(yè)計算機應(yīng)用技術(shù)指導(dǎo)教師葉延風(fēng)20080101面向飛行器設(shè)計的航空專用網(wǎng)格關(guān)鍵技術(shù)的研究與實現(xiàn)IIABSTRACTTHEREQUIREMENTOFCOMPUTECAPABILITYINTHEMODERNAIRCRAFTDESIGNINCREASESSOSTENUTO,WHILETHECAPABILITYOFCOMMONCOMPUTERCAN’TMEETTHISREQUIREMENTBECAUSETHEGRIDCANCOLLECTTHECOMPUTATIONALRESOURCESONTHEWKTOSOLVETHEPROBLEMOFREQUIRINGMASSCOMPUTECAPABILITYINTHEMODERNAIRCRAFTDESIGNEFFECTIVELY,THERESEARCHONUSINGGRIDINMODERNAIRCRAFTDESIGNISVERYSIGNIFICATIVETHEACTUALITYOFGRIDINOUTABROADISANALYZEDINTHISTHESIS,OPENGRIDSERVICESARCHITECTUREOGSAOPENGIRDSERVICESINFRASTRUCTURESOGSIISDISCUSSEDASWELLTHEWEBSERVICERESOURCEFRAMEWKWSRFISRESEARCHEDON,ASALSOASTHELATESTSPECIFICATIONWSRESOURCETRANSFERWSRTTHINKINGOFTHEREQUIREMENTOFAIRCRAFTDESIGN,THEFRAMEOFAERONAUTICSPECIALGRIDASGISDEVISEDOWINGTOTHEREQUIREMENTOFHIGHPERFMANCECOMPUTE,THEBEFEHRESEARCHMODELBRMBASEDONTHEBEFEHRESEARCHSTRATEGYISDEVISEDWHICHISBUILDEDONTHEEXISTENTRESOURCEDISCOVERYMECHANISMMDSADOPTEDBYGLOBUSISANALYZED,MAKEEXPERIMENTRESPECTIVELYONBRMMDS,THENCONTRASTTHERESULTOFBRMWITHMDS,RESEARCHONTHEFACTSTHATINFLUENCETHEPERFMANCEOFBRMTHERESULTOFEXPERIMENTATIONTURNSOUTTHATTHEPERFMANCEOFBRMISHIGHERTHANMDSEVIDENTLYINTHEAERONAUTICSPECIALGRIDANALYZETHEGLOBUSTOOLKIT40SEARCHAFTERTHEMETHODOFCONFIGURINGGRIDDEVELOPMENTENVIRONMENTTHEHIGHDERMATRICESPROBLEMINAIRCRAFTDESIGNISEXPLED,THEHIGHDERMATRICESDECREASINGDIMSSERVICEISIMPLEMENTEDELEMENTARILYATLASTTHEBRMDEVISEDINTHISTHESISITSALGITHMCANIMPROVETHESPEEDOFRESOURCEDISCOVERYOBVIOUSLYINASGTHEHIGHDERMATRICESDECREASINGDIMSSERVICECANMEETTHEREQUIREMENTOFMASSCOMPUTECAPABILITYINMODERNAIRCRAFTDESIGNKEYWDSGRID,AIRCRAFTDESIGN,GLOBUSTOOLKIT,RESOURCEDISCOVERY,GRIDSERVICE
下載積分: 5 賞幣
上傳時間:2024-03-01
頁數(shù): 75
大?。?0.47(MB)
子文件數(shù):
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簡介:西北工業(yè)大學(xué)碩士學(xué)位論文通用航空總線實時測試與分析技術(shù)研究姓名寧偉申請學(xué)位級別碩士專業(yè)計算機應(yīng)用技術(shù)指導(dǎo)教師杜承烈20060301墮J三些叁堂堡圭堂垡笙莖壘里墜ABSTRACTAVIONICSBUSTECHNOLOGYISTHEBASEOFAVIONICSINTEGRATEDSYSTEM塒THRESPONSIBILITYOFINFORMATIONEXCHANGEANDRESOURCESHARINGBETWEENDIFFERENTSUBSYSTEMSONTHEPLANEBECAUSEOFTHEKEYSTATUSOFTHEAVIONICSBUSINAVIONICSINTEGRATEDSYSTEM,ITSRELIABILITYANDSTABILITYBECOMEMOREANDMOREIMPORTANTAIMATCURRENTLYVARIOUSAVIONICSBUSISINAGREATDEALOFUSAGEINTHEMODEMAIRPLANE,HOWTOCARRYONACOMPREHENSIVETESTTOTHECOMPLICATEDAVIONICSSYSTEMEFFICIENTLYANDACCURATELYBECOMETHEHOTPOINTOFTHEAVIONICSBUSTESTREALM111ISPAPERMAINLYRESEARCHEDTHEUNIVERSALAVIONICSBUSREALTIMETESTANDANALYSISTECHNOLOGYINCLUDING“1ANALYZEDTHECHARACTERISTICSANDTHEDEVELOPMENTTRENDOFAVIONICSBUSSYSTEMRESEARCHEDTHESTANDARD,CONSTITUTESTRUCTUREANDDELIVERMECHANISMOFARINC429ANDMILSTD一1553BANDTHENCOMPAREDTHISTWOMOSTLYUSEDAVIONICSBUS2ANALYZEDTHECONTENTSANDMETHODSOFTHEAVIONICSTESTTECHNIQUEBYCOMPARINGTHECOMPUTERNETWORKTEST,STUDIEDTHEAVIONICSBUSTESTTECHNIQUEOFARINC429ANDMILSTD1553BANDPOINTEDOUTTHEKEYTECHNOLOGYOFUNIVERSALAVIONICSBUSREALTIMETESTANDANALYSIS3ANALYZEDTHECHARACTERISTICSOFTHEINTERFACECONTROLDOCUMENTICDANDIT’SFUNCTIONINTHEAVIONICSTESTSYSTEMAIMATTHEABUSEOFTRADITIONALICDDESIGNMETHOD,POINTEDOUTTHEDATADESCRIPTIONDESIGNMETHODOFUNIVERSALAVIONICSBUS4SYNTHESIZEINTHECHARACTERISTICSANDSYSTEMSTRUCTUREOFUNIVERSALAVIONICSBUSTESTSYSTEM,CARRYOUTTHEPLATFORMOFUNIVERSALAVIONICSBUSREALTIMETESTANDANALYSIS5TAKETHETECHNOLOGYOFUNIVERSALAVIONICSREALTIMETESTANDANALYSISUSEDINTOTHEITEMOF“ARJ21AIRPLANEARLNC429DATATESTANDANALYSISINSTRUMENT’PROVIDEDBYAIRPLANEDESIGNINSTITUTIONINSHANGHAIDESIGNEDANDREALIZEDTHESOFTWARESYSTEMOFARINC429DATATESTANDANALYSISINSTRUMENTTHERESULTINDICATEDTHATITCOULD蹦FILLTHEREQUESTOFFUNCTIONANDPERFORMANCEKEYWORDSAVIONICSINTEGRATION,BUSTESTING,ARINC429,1553B,ICDII
下載積分: 5 賞幣
上傳時間:2024-03-01
頁數(shù): 64
大?。?1.83(MB)
子文件數(shù):
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簡介:中圖分類號V2337論文編號102870214S082學(xué)科分類號082502碩士學(xué)位論文航空發(fā)動機分布式控制系統(tǒng)通信總線研究研究生姓名關(guān)越學(xué)科、專業(yè)航空宇航推進工程與理論研究方向分布式控制系統(tǒng)指導(dǎo)教師潘慕絢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一三年十二月承諾書本人聲明所呈交的博士學(xué)位論文是本人在導(dǎo)師指導(dǎo)下進行的研究工作及取得的研究成果。除了文中特別加以標(biāo)注和致謝的地方外,論文中不包含其他人已經(jīng)發(fā)表或撰寫過的研究成果,也不包含為獲得南京航空航天大學(xué)或其他教育機構(gòu)的學(xué)位或證書而使用過的材料。本人授權(quán)南京航空航天大學(xué)可以將學(xué)位論文的全部或部分內(nèi)容編入有關(guān)數(shù)據(jù)庫進行檢索,可以采用影印、縮印或掃描等復(fù)制手段保存、匯編學(xué)位論文。(保密的學(xué)位論文在解密后適用本承諾書)作者簽名日期
下載積分: 5 賞幣
上傳時間:2024-03-01
頁數(shù): 102
大?。?5.16(MB)
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簡介:洳≥J、曾博士學(xué)位論文⑧論文題目一墮室鍪堡墮塑簍挈霉塑三堊墅竺堊堡笙和方法研究作者姓名孫杰指導(dǎo)教師柯映林教授學(xué)科專業(yè)機械制造及其自動化所在學(xué)院機械與能源工程學(xué)院提交日期二零零三年十二月I浙江大學(xué)博JJ學(xué)位論文的計算公式。對復(fù)雜零件,研究了二倍彈性斜率法及切線交點法確定安全校詎極限參數(shù)的方法。通過外加載荷與工件內(nèi)應(yīng)力耦合作用效果的有限元計算,進一步研究了殘余應(yīng)力對工件極限承載能力及安全校正載荷的影響。對于典型的隔框?qū)嵗慵?,給出了不同變形校正時的安全校正參數(shù)。第七章給出本學(xué)位論文的結(jié)論和進一步研究的展望。附錄對振動校形和振動消除殘余應(yīng)力的關(guān)鍵技術(shù)進行了介紹。關(guān)鍵詞變形校正航空整體結(jié)構(gòu)件曲率彎曲扭矩有限元殘余應(yīng)力安全校正極限載荷本論文研究得到了國家自然科學(xué)基金項目、國防軍工項目、教育部博士點基金項目等課題的資助
下載積分: 5 賞幣
上傳時間:2024-03-01
頁數(shù): 129
大?。?4.33(MB)
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簡介:K分類號UDC密級1935080學(xué)位論文航空發(fā)動機葉片疲勞的損傷力學(xué)研究及外物損傷影響作者姓名周勝田指導(dǎo)教師黃寶宗教授東北大學(xué)理學(xué)院申請學(xué)位級別博士學(xué)科類別工學(xué)學(xué)科專業(yè)名稱結(jié)構(gòu)工程論文提交日期2007年11月17日學(xué)位授予日期勾O8年3同論文答辯日期2007年11月懶會主席剮弒評閱人斛狀槲訐I舀。嗣仁嗣售嗣餾東北大學(xué)2007年L1月,‘●IITADISSERTATIONINSTRUCTURALESTUDYONFATIGUEOFAIRENGINEBLADESBYDAMAGEMECHANICSANDINFLUENCEOFFOREIGNOBJECTDAMAGEBYZHOUSHENGTIANSUPERVISORPROFESSORHUANGBAOZONGNORTHEASTERNUNIVERSITYNOVEMBER2007P3IP
下載積分: 5 賞幣
上傳時間:2024-03-01
頁數(shù): 140
大?。?5.2(MB)
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