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簡介:基于灰色理論的航天器型號(hào)物資保障能力評(píng)價(jià)研究RESEARCHONEVALUATIONOFMATERIALSUPPORTCAPABILITYOFSPACECRAFTBASEDONGREYTHEORY薄鵬2016年06月CLASSIFIEDINDEXF25UDC658DISSERTATIONFORTHEMASTERDEGREEINMANAGEMENTRESEARCHONEVALUATIONOFMATERIALSUPPORTCAPABILITYOFSPACECRAFTBASEDONGREYTHEORYCANDIDATEBOPENGSUPERVISORASSOCIATEPROFCHENGQIAOLIANACADEMICDEGREEAPPLIEDFORMASTEROFMANAGEMENTSPECIALTYMANAGEMENTSCIENCEANDENGINEERINGAFFILIATIONSCHOOLOFMANAGEMENTDATEOFDEFENSEJUNE,2016DEGREECONFERRINGINSTITUTIONHARBININSTITUTEOFTECHNOLOGY
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上傳時(shí)間:2024-03-01
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簡介:某110LLLLIILLLFLLLRLLLLLLILLLIILLLIIIIFLLFLLULLLLLY1885597TRANSSCALEANALYSISOFFAILUREBEHAVIOROFLAMINATEDS缸UCTI】】REMATERIALSFORAERONAUTICSAPPLICATIONBYLIXIAODONGBEQIQIHAERUNIVERSITYOFTECHNOLOGY2007ATHESISSUBMITTEDINPARTIALSATISFACTIONOFTHEREQUIREMENTSFORTHEDEGREEOFMASTEROFENGINEERINGMATERIALSCIENCEINTHEGRADUATESCHOOLOFLANZHOUUNIVERSITYOFTECHNOLOGYSUPERVISORPROFESSORLIXUDONGAPRIL,2011
下載積分: 5 賞幣
上傳時(shí)間:2024-03-01
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簡介:碩士學(xué)位論文碩士學(xué)位論文基于梯度恢復(fù)算法的航天器基于梯度恢復(fù)算法的航天器基于梯度恢復(fù)算法的航天器基于梯度恢復(fù)算法的航天器追逃策追逃策追逃策追逃策略略略略研究研究研究研究RESEARCHRESEARCHRESEARCHRESEARCHOFOFOFOFSEQUENTIALSEQUENTIALSEQUENTIALSEQUENTIALGRADIENTGRADIENTGRADIENTGRADIENTRESTATIONRESTATIONRESTATIONRESTATIONAAAALGITHMLGITHMLGITHMLGITHMITSITSITSITSAPPLIAPPLIAPPLIAPPLICATIONCATIONCATIONCATIONININININPURSUITEVASIONPURSUITEVASIONPURSUITEVASIONPURSUITEVASIONGAMESGAMESGAMESGAMES姚志虎姚志虎哈爾濱工業(yè)大學(xué)哈爾濱工業(yè)大學(xué)2020202012121212年7777月CLASSIFIEDINDEXV41241UDC533DISSERTATIONFTHEMASTERDEGREEINENGINEERINGRESEARCHRESEARCHRESEARCHRESEARCHOFOFOFOFSSSSEQUENTIALEQUENTIALEQUENTIALEQUENTIALGGGGRADIENTRADIENTRADIENTRADIENTRRRRESTATIONESTATIONESTATIONESTATIONALGITHMALGITHMALGITHMALGITHMITSITSITSITSAPPLIAPPLIAPPLIAPPLICATIONCATIONCATIONCATIONININININPURSUITEVASIONPURSUITEVASIONPURSUITEVASIONPURSUITEVASIONGAMESGAMESGAMESGAMESCIDATECIDATECIDATECIDATEYAOZHIHUSUPERVISSUPERVISSUPERVISSUPERVISPROFZHANGQIUHUAACADEMICACADEMICACADEMICACADEMICDEGREEDEGREEDEGREEDEGREEAPPLIEDAPPLIEDAPPLIEDAPPLIEDFFFFMASTEROFENGINEERINGSPECIALITYSPECIALITYSPECIALITYSPECIALITYSOLIDMECHANICSAFFILIATIONAFFILIATIONAFFILIATIONAFFILIATIONSCHOOLOFASTRONAUTICSDATEDATEDATEDATEOFOFOFOFDEFENCEDEFENCEDEFENCEDEFENCEJULY2012DEGREECONFERRINGINSTITUTIONDEGREECONFERRINGINSTITUTIONDEGREECONFERRINGINSTITUTIONDEGREECONFERRINGINSTITUTIONHARBININSTITUTEOFTECHNOLOGY
下載積分: 5 賞幣
上傳時(shí)間:2024-03-01
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簡介:湖南大學(xué)碩士學(xué)位論文某航空發(fā)動(dòng)機(jī)離心葉輪疲勞使用壽命與裂紋擴(kuò)展分析姓名段遠(yuǎn)飛申請(qǐng)學(xué)位級(jí)別碩士專業(yè)工程力學(xué)指導(dǎo)教師劉騰喜20100504某航空發(fā)動(dòng)機(jī)離心葉輪疲勞使用壽命與裂紋擴(kuò)展分析IIIABSTRACTFATIGUEFAILUREISAVERYPROMINENTISSUEINAERONAUTICALENGINEERINGTHEFRACTUREPROBLEMSOFAIRCRAFTSTRUCTUREINANEXTERNALFIELDHAVEOCCURREDMOSTLYDUETOTHEFATIGUETURBINEDISKISONEOFTHEKEYCOMPONENTSOFTHEAEROENGINEWHICHHASCOMPLEXSTRUCTUREBEARSMULTISTRAINUNDERBADWKENVIRONMENTONCEBROKENTHECONSEQUENCEISVERYSERIOUSINDERTOENSURETHESTABILITYOFTHEENGINEITISURGENTLYNEEDTOPREDICTCONTROLTHETURBINEDISKLIFEINTHISPAPERTHEFATIGUECRACKINITIATIONLIFETHEFATIGUECRACKPROPAGATIONLIFEOFTHECENTRIFUGALIMPELLERHAVEBEENCOMPUTEDONTHEBASEOFTHEFINITEELEMENTSTRESSANALYSISOFTHECENTRIFUGALIMPELLERTHEMAINCONTENTSINCLUDEFIRSTLYTHEPAPERINTRODUCESTHEBASICRELEVANTTHEYOFTHEFATIGUEPROBLEMSSECONDLYWEHAVECARRIEDOUTALINEARELASTICFINITEELEMENTSTRESSANALYSISONCENTRIFUGALIMPELLERBYUSINGFINITEELEMENTSOFTWAREPATRANNASTRANUNDERTHECENTRIFUGALLOADTHETEMPERATURELOADWEGETTHESTRESSSTRAINCONDITIONINTHEIRWKENVIRONMENTDETERMINETHEFATIGUEFAILURELOCATIONOFTHECENTRIFUGALIMPELLERFSUBSEQUENTRESEARCHOFTHEFATIGUELIFETHIRDLYTHEFATIGUECRACKINITIATIONLIFEOFCENTRIFUGALIMPELLERHASBEENCALCULATEDBYUSINGFATIGUESOFTWARETHATBASEDONTHERESULTSOFFINITEELEMENTSTRESSANALYSISFOURTHLYTHEFATIGUEEXPERIMENTSOFTHECENTRIFUGALIMPELLERHAVEBEENPROCEEDEDTHECRACKGROWTHDATASHAVEBEENCOLLECTEDTOESTIMATETHEFATIGUECRACKPROPAGATIONLIFEBYUSINGFATIGUESTRIATIONINVERSEMETHODTHENWEHAVEPREDICTEDTHEFATIGUECRACKPROPAGATIONLIFEOFTHECENTRIFUGALIMPELLERBYUSINGPARISEQUATIONTHROUGHTHEFINITEELEMENTANALYSISOFTHESTRESSCALCULATIONTHEFATIGUECRACKINITIATIONLIFECALCULATIONTHEFATIGUECRACKPROPAGATIONLIFECALCULATIONOFTHEAEROENGINECENTRIFUGALIMPELLERTHERESULTSRESEARCHMETHODSPROVIDESOMEREFERENCEVALUEFIMPROVINGTHERELIABILITYOFTHEAEROENGINEKEYWDSCENTRIFUGALIMPELLERFINITEELEMENTFATIGUECRACKINITIATIONLIFEFATIGUECRACKPROPAGATIONLIFE
下載積分: 5 賞幣
上傳時(shí)間:2024-03-01
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簡介:中圖分類號(hào)V2337論文編號(hào)102870212S016學(xué)科分類號(hào)082502碩士學(xué)位論文航空動(dòng)力裝置建模與控制組態(tài)軟件技術(shù)研究研究生姓名廉潔學(xué)科、專業(yè)航空宇航推進(jìn)理論與工程研究方向系統(tǒng)仿真與控制指導(dǎo)教師黃向華教授南京航空航天大學(xué)研究生院能源與動(dòng)力學(xué)院二О一一年十二月NANJINGUNIVERSITYOFAERONAUTICSASTRONAUTICS本人聲明所呈交的碩士學(xué)位論文是本人在導(dǎo)師指導(dǎo)下進(jìn)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(jī)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(jìn)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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上傳時(shí)間:2024-03-01
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簡介:中國科學(xué)技術(shù)大學(xué)博士學(xué)位論生物油催化合成航空煤油異構(gòu)烷烴組分研究作者姓名學(xué)科專業(yè)導(dǎo)師姓名完成時(shí)間姜沛汶物理化學(xué)李全新教授二。一六年五月五日文中國科學(xué)技術(shù)大學(xué)學(xué)位論文原創(chuàng)性聲明本人聲明所呈交的學(xué)位論文,是本人在導(dǎo)師指導(dǎo)下進(jìn)行研究工作所取得的成果。除已特別加以標(biāo)注和致謝的地方外,論文中不包含任何他人已經(jīng)發(fā)表或撰寫過的研究成果。與我一同工作的同志對(duì)本研究所做的貢獻(xiàn)均己在論文中作了明確的說明。作者簽名畢中國科學(xué)技術(shù)大學(xué)學(xué)位論文授權(quán)使用聲明作為申請(qǐng)學(xué)位的條件之一,學(xué)位論文著作權(quán)擁有者授權(quán)中國科學(xué)技術(shù)大學(xué)擁有學(xué)位論文的部分使用權(quán),即學(xué)校有權(quán)按有關(guān)規(guī)定向國家有關(guān)部門或機(jī)構(gòu)送交論文的復(fù)印件和電子版,允許論文被查閱和借閱,可以將學(xué)位論文編入中國學(xué)位論文全文數(shù)據(jù)庫等有關(guān)數(shù)據(jù)庫進(jìn)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。本人提交的電子文檔的內(nèi)容和紙質(zhì)論文的內(nèi)容相一致。保密的學(xué)位論文在解密后也遵守此規(guī)定。醅公開口保密年作者簽名妯互L簽字日期至塑16‘絲導(dǎo)師簽名簽字日期型臣16,生
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上傳時(shí)間:2024-03-01
頁數(shù): 108
大?。?9.68(MB)
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簡介:中圖分類號(hào)TP3021論文編號(hào)102871614S010學(xué)科分類號(hào)081200碩士學(xué)位論文綜合模塊化航空電子系統(tǒng)資源配置工具的研究與實(shí)現(xiàn)研究生姓名楊洋學(xué)科、專業(yè)計(jì)算機(jī)科學(xué)與技術(shù)研究方向綜合化航空電子指導(dǎo)教師谷青范副教授研究生院計(jì)算機(jī)科學(xué)與技術(shù)學(xué)院二О一四年一月南京航空航天大學(xué)
下載積分: 5 賞幣
上傳時(shí)間:2024-03-01
頁數(shù): 75
大?。?2.92(MB)
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簡介:西安電子科技大學(xué)碩士學(xué)位論文基于層次分析與灰度關(guān)聯(lián)的綜合化航空電子安全性評(píng)估方法姓名朱小未申請(qǐng)學(xué)位級(jí)別碩士專業(yè)計(jì)算機(jī)系統(tǒng)結(jié)構(gòu)指導(dǎo)教師馬建峰201102ABSTRACTNEWTⅥEOFAVIONICSSYSTEMSHOWSTHETENDENCIESOTINTEGRATLONANDMODULARIZATIONITHASTHECHARACTERISTICSOFRESOURCESSHARING,INFORMATLONHLGHSPEEDTRANSMISSION,ANDHI曲LYINTEGRATEDTHEHARDWAREANDSORWARE,WHLCH。EQUE8‘NEWDEMANDSOFINFORMATIONSECURITY行OMAVIONICSSYSTEMTHEDOMESTLCAND托RELGNRELEVANTRESEARCHINSTITUTIONSANDORGANIZATIONSPUTAVARIETY0FINTEGRATEDAVLONLCSSVSTEMSECURITYSYSTEMSTRUCTUREANDINFORMATIONSECURITYTECHNOLOGYSOLUTLONSTONVARDBUTBECAUSEOFTHEINTERDISCIPLINARYOFTECHN0109Y,THEDIVERSITYOFSECURLTY1SSUES,ANDTHEHI曲COMPLEXITYOFAVIONICSSYSTEM,THEREISLACKOFE骶CTIVESOLUTIONTOEVALUATETNESECURITVOFAVBNICSSYSTEMTHEEXISTINGEVALUATIONMETHODBASEDONQUALLTATLVELYCOMPARINGANDANALYZINGTHESECURITYINDEXESOFAVIONICSSYSTEM,ITCANHARD5LYMEETTHEHIGHSECURITYREQUIREMENTSOFINTEGRATEDAVIONICSSYSTEMINVIEWOFTHEPROBLEMSABOVE,THISPAPERAIMSATTHESECURHYEVALUATIONMETHODOFINTEGRATEDAVLONLCS8Y5TEM,DETAILSAREASFOLLOWS11THISPAPERDEEPLYANALYZEDTHEAVIONICSSYSTEM’SSECURITYREQULREMENTSANDTNESECURITYTECHNOIOGYWHICHESTABLISHEDBYASAACNORM,ANDALSOCOMPAREDWLTHTWOKINDSOFTYPICALAVIONICSSYSTEMSECURITY仃AMEWORKSWHICHBASEDONTCBANDMILSFMULTIPLEINDEPENDENTLEVELSECURITY/SAFETYONTHESECURITY廳AMEWORK3WHLCHBA8EDONTCB,THESECUR“YMODULESARECONCENTRATEDINTHESYSTEMLAYERNOTONLYTNECOUPLINGFACTORISHIGH,BUTALSOTHESECURITYMODULESARECOMPLEX,WHLCHMEANSLT1SDIMCULTTOEVALUATETHESECUR咄0NMILS,THESECURITYMODULESAREDECENTRALIZED,ANDEACHSECURITYLAYERISINDEPENDENT,WHICHSHOWSTHESYSTEMCANBEEASIIYEVALUATED0NTHISBASIS,THEAVIONICSSYSTEMSECURITYMANAGEMENTSORWAREWHICHBASEDONMILSSECURITYMODULESCANBEDESIGNEDANDACHIEVED2、THESECURITYEVALUATIONMETHODS,CCAHPANDCCGR他WHICH8ULTTORINTEGRATEDAVIONICSSYSTEM,WASPUTFORWARDINTHISPAPERINORDERTOSOLVETHEPROBLEMTHATTHEEVALUATIONMETHOD,WHICHBASEDONGENERALCRITERBNCC,CANQUANTLTATⅣEIYEVALUATETHETARGETHARDLYTHESECUR“YEVALUATIONMETHODSUSESANALYTLCHLERARCNYDROCESSTOCALCULATETHEWEIGHTOFTHESECURITYMODULESBYTHETARGETOTSECURLTYEVALUATIONWHICHCALLEDTOEANDWITHTHEHELPOFGRAYRELATIVEANALY51SMETHOD,1T1SABLETOCALCULATETHESYSTEMSECURITYASSESSMENT1EVELCCAHPANDCCGRAPHAVESOLVEDTHEPROBLEMTHATTHETRADHIONALEVALUATIONMETHODCANNOTQUANTLTATLVELYEVAIUATETHETARGET
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簡介:工學(xué)碩士學(xué)位論文三軸穩(wěn)定航天器姿態(tài)最優(yōu)控制方法研究黃靜哈爾濱工業(yè)大學(xué)2010年7月CLASSIFIEDINDEXTP273UDC68152DISSERTATIONFORTHEMASTERDEGREEINENGINEERINGOPTIMALATTITUDECONTROLFORTHREEAXISSTABILIZEDSPACECRAFTSCANDIDATEHUANGJINGSUPERVISORPROFMAGUANGFUACADEMICDEGREEAPPLIEDFORMASTEROFENGINEERINGSPECIALTYCONTROLSCIENCEANDENGINEERINGAFFILIATIONDEPTCONTROLSCIENCEANDENGINEERINGDATEOFDEFENCEJULY,2010DEGREECONFERRINGINSTITUTIONHARBININSTITUTEOFTECHNOLOGY
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上傳時(shí)間:2024-03-01
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簡介:題(中、英文)(中、英文)目U系列航空計(jì)算機(jī)系列航空計(jì)算機(jī)檢測(cè)設(shè)備設(shè)計(jì)與實(shí)現(xiàn)檢測(cè)設(shè)備設(shè)計(jì)與實(shí)現(xiàn)THEDESIGNANDIMPLEMENTATIONOFTHEGROUNDTESTEQUIPMENTFORUSERIESOFAIRBORNECOMPUTER作者姓名作者姓名郭興平郭興平劉篤仁劉篤仁教授教授軟件工程軟件工程提交論文日期提交論文日期二〇一二二〇一二年四月黃韜研究員研究員代號(hào)代號(hào)分類號(hào)分類號(hào)學(xué)號(hào)學(xué)號(hào)密級(jí)密級(jí)1070110701TP399公開公開1007205310072053UDC編號(hào)編號(hào)Z1203102學(xué)校指導(dǎo)教師姓名職稱學(xué)校指導(dǎo)教師姓名職稱工程領(lǐng)域工程領(lǐng)域企業(yè)指導(dǎo)教師姓名職稱企業(yè)指導(dǎo)教師姓名職稱西安電子科技大學(xué)西安電子科技大學(xué)學(xué)位論文獨(dú)創(chuàng)性(或創(chuàng)新性)聲明學(xué)位論文獨(dú)創(chuàng)性(或創(chuàng)新性)聲明秉承學(xué)校嚴(yán)謹(jǐn)?shù)膶W(xué)風(fēng)和優(yōu)良的科學(xué)道德,本人聲明所呈交的論文是我個(gè)人在導(dǎo)師指導(dǎo)下進(jìn)行的研究工作及取得的研究成果。盡我所知,除了文中特別加以標(biāo)注和致謝中所羅列的內(nèi)容以外,論文中不包含其他人已經(jīng)發(fā)表或撰寫過的研究成果;也不包含為獲得西安電子科技大學(xué)或其它教育機(jī)構(gòu)的學(xué)位或證書而使用過的材料。與我一同工作的同志對(duì)本研究所做的任何貢獻(xiàn)均已在論文中做了明確的說明并表示了謝意。申請(qǐng)學(xué)位論文與資料若有不實(shí)之處,本人承擔(dān)一切的法律責(zé)任。本人簽名日期西安電子科技大學(xué)西安電子科技大學(xué)關(guān)于論文使用授權(quán)的說明關(guān)于論文使用授權(quán)的說明本人完全了解西安電子科技大學(xué)有關(guān)保留和使用學(xué)位論文的規(guī)定,即研究生在校攻讀學(xué)位期間論文工作的知識(shí)產(chǎn)權(quán)單位屬西安電子科技大學(xué)。學(xué)校有權(quán)保留送交論文的復(fù)印件,允許查閱和借閱論文;學(xué)??梢怨颊撐牡娜炕虿糠謨?nèi)容,可以允許采用影印、縮印或其它復(fù)制手段保存論文。同時(shí)本人保證,畢業(yè)后結(jié)合學(xué)位論文研究課題再撰寫的文章一律署名單位為西安電子科技大學(xué)。(保密的論文在解密后遵守此規(guī)定)本學(xué)位論文屬于保密,在年解密后適用本授權(quán)書。本人簽名日期導(dǎo)師簽名日期
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下載積分: 5 賞幣
上傳時(shí)間:2024-03-01
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子文件數(shù):
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簡介:聲明本學(xué)位論文是我在導(dǎo)師的指導(dǎo)下取得的研究成果,盡我所知,在本學(xué)位論文中,除了加以標(biāo)注和致謝的部分外,不包含其他人已經(jīng)發(fā)表或公布過的研究成果,也不包含我為獲得任何教育機(jī)構(gòu)的學(xué)位或?qū)W歷而使用過的材料。與我一同工作的同事對(duì)本學(xué)位論文做出的貢獻(xiàn)均己在論文中作了明確的說明。研究生簽名砂|年弓月/。日學(xué)位論文使用授權(quán)聲明南京理工大學(xué)有權(quán)保存本學(xué)位論文的電子和紙質(zhì)文檔,可以借閱或上網(wǎng)公布本學(xué)位論文的部分或全部內(nèi)容,可以向有關(guān)部門或機(jī)構(gòu)送交并授權(quán)其保存、借閱或上網(wǎng)公布本學(xué)位論文的部分或全部內(nèi)容。對(duì)于保密論文,按保密的有關(guān)規(guī)定和程序處理。研究生簽名ABSTRACT碩士學(xué)位論文ABSTRACTAEROSPACETESTLAUNCHMISSIONISAHIGHRISKHIGHTECH,HIGHINVESTMENTCOMPLEXSYSTEMENGINEERINGTHEOPERATORNEEDSAHIGHERABILITYINTHETESTINGPROCESS。VIRTUALREALITYTECHNOLOGYCANBUILDAREALISTICSPACEENVIRONMENTFORTHELAUNCHSITEINORDERTOIMPROVETHEABILITYOFTHEOPERATORTOOPERATECORRECTLYATTHECOMPLEXSITE,THEOPERATORCANDRIVETHEVIRTUALAVATARINTHEVIRTUALENVIRONMENTTOCOMPLETETHETASKOFTRAININGINORDERTOIMPLEMENTANOPERATORDRIVENAVATARHUMANMOTIONTRACKINGNEEDSTOBESTUDIEDINORDERTOREALIZETHETRACKINGOFHUMANMOTION,AMOTIONTRACKINGSYSTEMBASEDOILINERTIALSENSORANDKINECTISDEVELOPEDTHEHUMANMOTIONDATAARECOLLECTEDBYTHEINERTIALSENSORANDKINECTTHEHUMANSKELETONMODELISESTABLISHEDANDTHEINITIALATTITUDEOFTHEHUMANBODYISCALIBRATEDTHESENSORCOORDINATESYSTEMANDKINECTCOORDINATESYSTEMARECONVERTEDTOHUMANSKELETALCOORDINATETHESYSTEMALSOCALCULATESTHECOORDINATESOFHUMANJOINTSANDACHIEVESREALTIMETRACKINGINORDERTOIMPROVETHESTABILITYOFHUMANMOTIONTRACKINGSYSTEM,THEINERTIALSENSORDATAANDKINECTDATAARECOLLECTEDFORDATAFUSION,USINGKALMANFILTERAIMINGATTHEREQUIREMENTOFRELIABILITYOFMOTIONDATAINMULTISOURCEDATAFUSION,ADATAFUSIONALGORITHMBASEDONDATAQUALITYEVALUATIONISPROPOSEDTHEALGORITHMEVALUATESTHEDATAQUALITYOFTHEINERTIALSENSORANDKINECT,ANDCOMPLETESTHEDATAFUSIONWORKACCORDINGTOTHEEVALUATIONRESULTSWHENTHEKINECTORINERTIALSENSORDATAERRORS,THEFUSIONALGORITHMCANBEMODIFIEDONTHEHUMANMOTIONDATATOENSURETHATTHENORMALMOVEMENTOFTHETRACKINGSYSTEMSTABLEOPERATIONTHEVALIDITYOFTHEALGORITHMAREVERIFIEDBYEXPERIMENTSTHEHUMANMOTIONPLANNINGINSPACELAUNCHMISSIONISSTUDIEDANRRTALGORITHMBASEDONRANDOMSAMPLINGISADOPTEDBASEDONTHEANALYSISOFTHEPROBLEMTHATTHETRADITIONALRRTALGORITHMHASALONGSEARCHTIMEANDLARGESCALE,ALLIMPROVEDRRTCONNECTALGORITHMISUSEDTOPLANTHEHUMANACTIONTHEEXPERIMENTALRESULTSSHOWTHATTHEIMPROVEDALGORITHMHASBETTERPERFORMANCETHERESULTSOFTHISPAPERAREVALIDATEDINTHESIMULATIONENVIRONMENTOFSPACETESTIAUNCHMISSIONKEYWORDHUMANMOTIONCAPTURE,INERTIALSENSOLKINECT,DATAFUSION,ACTIONPLANNINGII
下載積分: 5 賞幣
上傳時(shí)間:2024-03-01
頁數(shù): 72
大?。?13(MB)
子文件數(shù):
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簡介:分類號(hào)UDC學(xué)位論文航空發(fā)動(dòng)機(jī)葉片輥鍛回彈及模具補(bǔ)償研究作者姓名孟金玲指導(dǎo)教師孔祥偉教授東北大學(xué)機(jī)械工程與自動(dòng)化學(xué)院申請(qǐng)學(xué)位級(jí)別碩士學(xué)科類別工學(xué)學(xué)科專業(yè)名稱棚械設(shè)計(jì)及理論論文提交日期2012年6月論文答辯日期2012年6月學(xué)位授予日期2012年7月答辯委員會(huì)主席藏易褥評(píng)閱人李冷罕旰多嶄’/東北大學(xué)2012年6月獨(dú)創(chuàng)性聲明本人聲明,所呈交的學(xué)位論文是在導(dǎo)師的指導(dǎo)下完成的。論文中取得的研究成果除加以標(biāo)注和致謝的地方外,不包含其他人己經(jīng)發(fā)表或撰寫過的研究成果,也不包括本人為獲得其他學(xué)位而使用過的材料。與我~同工作的同志對(duì)本研究所做的任何貢獻(xiàn)均己在論文中作了明確的說明并表示謝意。學(xué)位論文作者簽名蟊A論日期島』】/2/學(xué)位論文版權(quán)使用授權(quán)書本學(xué)位論文作者和指導(dǎo)教師完全了解東北大學(xué)有關(guān)保留、使用學(xué)位論文的規(guī)定即學(xué)校有權(quán)保留并向國家有關(guān)部門或機(jī)構(gòu)送交論文的復(fù)印件和磁盤,允許論文被查閱和借閱。本人同意東北大學(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(jìn)行檢索、交流。作者和導(dǎo)師同意網(wǎng)上交流的時(shí)間為作者獲得學(xué)位后/半年口年口一年半口兩年一學(xué)位論文作者簽名拗簽字日期B,’Z2多導(dǎo)師簽名簽字日期‘’0新南侈D(zhuǎn)F2
下載積分: 5 賞幣
上傳時(shí)間:2024-03-01
頁數(shù): 71
大?。?6.95(MB)
子文件數(shù):
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簡介:THEAEROENGINEROTORSYSTEM’SVIBRATIONFAULTDIAGNOSISBASEDONTHEDOUBLEGRIDCORRECTEDWAVECLUSTERALGORITHMADISSERTATIONSUBMITTEDFORTHEDEGREEOFMASTERONMECHANICALENGINEERINGBYZHANGMINGMINGUNDERTHESUPERVISIONOFPROFLIUXIAOBOCOLLEGEOFAERONAUTICALMANUFACTURINGENGINEERINGNANCHANGHANGKONGUNIVERSITY,NANCHANG,CHINAJUNE,2016IIABSTRACTTHEROTORSYSTEMISTHECOREPARTOFTHETYPICALROTATINGMACHINERYAEROENGINE,WHETHERITISNORMALORNOTHASAFFECTIONONTHEOPERATINGSTATEOFTHEWHOLEMACHINEINORDERTOIMPROVETHEPRODUCTIONEFFICIENCYANDAVOIDTHESERIOUSACCIDENTS,ITISOFGREATSIGNIFICANCETOCARRYONTHEFAULTDIAGNOSISANDMONITORINGOFTHEROTORWITHTHEDEVELOPMENTOFINFORMATIONTECHNOLOGY,INTELLECTUALIZATIONHASBECOMETHEDEVELOPINGDIRECTIONOFTHEFAULTDIAGNOSISANDWITHTHEDRAMATICINCREASEOFFAULTINFORMATIONDATAANDTHEEXISTENCEOFKNOWLEDGEBOTTLENECK,THETRADITIONALPATTERNRECOGNITIONMETHODISDIFFICULTTOMEETTHEREQUIREMENTSOFMODERNFAULTDIAGNOSISDEVELOPINGNEWMETHODTOREALIZETHEPATTERNRECOGNITIONANDCLUSTERINGDIAGNOSISOFROTORFAULTSQUICKLYANDINTELLIGENTLYISSTILLARESEARCHHOTSPOTTHEESSENCEOFFAULTDIAGNOSISISTHEAUTOMATICPROCESSINGANDJUDGINGOFTHEDATAWHICHCONTAINSTHERELEVANTFAULTINFORMATIONINTHISPAPER,THEAPPLICATIONOFWAVECLUSTERMETHODINFAULTDIAGNOSISOFAEROENGINEROTORSYSTEMWASEXPLOREDINCONSIDERATIONOFTHEHIGHSPACECOMPLEXITYOFTHEWAVECLUSTERALGORITHMINTHEHIGHDIMENSION,THEIMPROVEDWAVECLUSTERALGORITHMSTOREDBYTHECELLARRAYISPROPOSEDTHENONEMPTYELEMENTWITHVALIDDATAWASSTOREDINTHECELLARRAYSTRUCTURE,WHICHCANAVOIDTHEINVALIDOPERATIONOFTHEGRIDCELLSMEANWHILE,THEDATACONTENTANDADDRESSWERESETUPONTHESAMELOOKUPTABLETOCONSTRUCTTHEMAPPINGRELATIONSHIPWITHTHECHARACTERISTICTHATTHEARRAYSTRUCTURECANBEUSEDTOMANIPULATETHEDATAOFANYTYPEANDANYSIZE,WHICHREDUCETHESPACECOMPLEXITYOFTHEALGORITHMTHEROTORFAULTDIAGNOSISBASEDONTHEWAVECLUSTERALGORITHMISCARRIEDOUTWITHTHEDATAGOTBYTHEAEROENGINEROTORFAULTSIMULATINGEXPERIMENT,THERESULTSSHOWTHATTHESPACECOMPLEXITYOFTHEALGORITHMCANBEREDUCEDANDTHEEFFICIENCYOFTHEALGORITHMCANBEIMPROVEDWITHTHECELLULARSTORAGEITCANEFFECTIVELYTODISTINGUISHTHEROTORFAULTSTATEBYUSETHEWAVECLUSTERSTOREDBYTHECELLARRAYINCONSIDEROFTHELOWPRECISIONANDEFFICIENCYOFTHECLUSTERINGWITHTHECONNECTIONDEFINEUSINGINTHETRADITIONWAVECLUSTERALGORITHM,ANIMPROVEDWAVECLUSTERALGORITHMBASEDONBREADTHFIRSTSEARCHALGORITHMWASPRESENTEDTHEALGORITHMINTEGRATEWITHTHEADVANTAGESOFTHEWAVECLUSTERALGORITHMANDTHEBREADTHFIRSTSEARCHBFSNEIGHBORCLUSTERINGALGORITHM,ANDTHEDEFINITIONOFTHEMESHNEIGHBORUNITOFTHEFORMERISUSEDTOIMPROVETHELATTERSENSITIVITYTHATREQUIRE
下載積分: 5 賞幣
上傳時(shí)間:2024-03-01
頁數(shù): 67
大小: 1.7(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)位論文航空發(fā)動(dòng)機(jī)轉(zhuǎn)子連接螺栓預(yù)緊力與疲勞壽命研究姓名劉存申請(qǐng)學(xué)位級(jí)別碩士專業(yè)航空宇航推進(jìn)理論與工程指導(dǎo)教師宋迎東20090301航空發(fā)動(dòng)機(jī)轉(zhuǎn)子連接螺栓預(yù)緊力與疲勞壽命研究-II-ABSTRACTTHECONNECTINGBOLTSWHICHBEHAVEMANYADVANTAGESSUCHASGOODCONNECTINGSTIFFNESS,LIGHTWEIGHT,SIMPLESTRUCTUREEASYASSEMBLE,AREWIDELYUSEDINAREOENGINESFEWRESEARCHESONTHEDESIGNMETHODOFTHESECONNECTINGBOLTSHAVEBEENCARRIEDOUTINCHINAITISNECESSARYTODEVELOPETHEANALYSISMETHODSDESIGNCRITERIASOFCONNECTINGBOLTSUSEDINAEROENGINESTHISTHESISAIMSATTHECRITERIASOFAXIALPRELOADTHESTRENGTHANALYSISFATIGUELIFEPREDICTIONOFCONNECTINGBOLTSTHEACTERISTICSMAGNITUDEOFTHEAERODYNAMICLOADSCENTRIFUGALLOADSTHERMALLOADSMANEUVERLOADSTQUESUPONTHELOWPOWERTURBINEROTSAREANALYZEDCALCULATEDA3DCYCLESYMMETRYFINITEELMENTMODELOFTHELOWPRESSURETURBINEROTWITHCONNECTINGBOLTSISBUILTTHEPRESSRELAXFCEONTHECONNECTINGBOLTSUNDERVARIOUSOPERATIONCONDITIONSARECOMPUTEDBYCOMMERCIALFEASOFTWAREFOURCRITERIASINCLUDINGSTRENGTHCRITERIASEPARATIONCRITERIAFATIGUECRITERIAMODALCRITERIAAREPRESENTEDCOMBININGTHEFOURCRITERIASABOVETWODIFFERENTMETHODSAREDEVELOPEDTOCALCULATETHEFEASIBLEAXIALPRELOADOFTHECONNECTINGBOLTSTHESTRESSSTRAINFIELDSOFTHECONNECTINGBOLTSUNDERVARIOUSOPERATIONCONDITIONSARECALCULATEDTHERESULTSSHOWTHATTHESTATICSTRENGTHFULLYMEETSTHEREQUIREMENTOFSTRENGTHDESIGNTHEDYNAMICACTERISTICSOFTHEROTSUCHASFIRSTTWELVEFREEMODESCONSTRAINTMODESPRESTRESSMODESARECALCULATEDANALYZEDTHESTRESSBASEDSTRAINBASEDFATIGUELIFEPREDICTIONMETHODSTHEPRINCIPLEOFFATIGUEDAMAGEACCUMULATIONAREANALYSIZEDTHEEFFECTSOFMEANSTRESSSTRESSCONCENTRATIONFACTMULTIAXIALSTRESSLOADSEQUENCEONFATIGURELIFEPREDICTIONSAREALSOCONSIDEREDATLASTTHEFATIGUELIFEOFTHECONNECTINGBOLTINTHEAEROENGINEROTISPREDICTEDACCDINGTOTHEMETHODDEVELOPEDINTHISTHESISKEYWDSAEROENGINE,CONNECTINGBOLT,AXIALPRELOAD,STRENGTH,F(xiàn)ATIGUELIFE
下載積分: 5 賞幣
上傳時(shí)間:2024-03-01
頁數(shù): 99
大小: 1.04(MB)
子文件數(shù):