-
簡介:娜介次掌碩士學(xué)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(fù)真讓算作者姓名指導(dǎo)教師學(xué)科專業(yè)所在學(xué)院提交日期浙江大學(xué)碩士學(xué)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(yù)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(xué)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(xué)數(shù)值仿真
下載積分: 5 賞幣
上傳時間:2024-03-01
頁數(shù): 76
大?。?17.04(MB)
子文件數(shù):
-
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(xué)科專業(yè)名稱研究方向論文類型申請學(xué)位指導(dǎo)教師姓名指導(dǎo)教師職稱指導(dǎo)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(xué)院2009年11月24日2010年01月08日沈陽航空工業(yè)學(xué)院2叭0年01月原創(chuàng)性聲明本人鄭重聲明所呈交的學(xué)位淪文是本人在導(dǎo)師的指導(dǎo)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(xué)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(dān)。論文作者簽名岳南毳,陽IO年F月他日
下載積分: 5 賞幣
上傳時間:2024-03-01
頁數(shù): 86
大小: 8.74(MB)
子文件數(shù):
-
簡介:上海交通大學(xué)碩士學(xué)位論文典型航天產(chǎn)品電子束焊接變形預(yù)測與控制姓名吳飛申請學(xué)位級別碩士專業(yè)材料加工工程指導(dǎo)教師陸?zhàn)?0040101PREDICTIONCONTRALOFTHEDEFMATIONOFELECTRONBEAMWELDINGONTYPICLEAEROWKPIECESABSTRACTFIRSTLYSEVERALNUMERICALMETHODSOFPREDICTINGWELDINGDEFMATIONARECOMPAREDBASICTHEYPROPERTYAPPLICABILITYOFEACHNUMERICALMETHODAREDISCUSSEDTHEMECHANICSOFWELDINGDEFMATIONISALSODISCUSSEDINTHISPAPERTHETHERMOELASTICPLASTICFEMISPAIDMEATTENTIONTOINTHETHESISTAKINGINTOACCOUNTTHEGEOMETRICALDIMENSIONSMATERIALSPROPERTIESHEATDISTRIBUTIONTHEMESHASERIESOFTHINCYLINDERISCREATEDFELECTRONBEAMWELDINGEBWAFTERCOMPARISONRULESAREGIVENOUTTODETERMINEEACHFACTTHEEFFECTOFTHELATENTHEATOFFUSIONMOLTENMETALISRESEARCHEDINTHISPAPERTHEAPPLICABILITYOFTHEINHERENTSTRAINMETHODISDISCUSSEDFEBWONTHINCYLINDERSTHEVALUEOFKCM3JINTHEEQUATIONOFWXKQVTOGETHERWITHTHEVALUEOFCM3JINTHEEQUATIONOFWYQVAREGIVENFEBWCOMPUTATIONFCYLINDERSOFDIFFERENTMATERIALSDIFFERENTSIZESSHOWSTHATISACONSTANTVALUEFEBWONTHINCYLINDERKISAFFECTEDBYTHERADIUSOFCYLINDERSBASEDONTHERMOELASTICPLASTICFEMTHEPREDEFMATIONPROCESSISSIMULATEDAMETHODISGIVENTODETERMINEPREDEFMATIONVALUESOMEADVICESAREGIVENTOIMPROVECURRENTPREDEFMATIONPROCESSATLASTTHECOOLINGEFFECTOFTHEFIXERTHEEFFECTOFSKIPWELDINGAREEVALUATEDBYNUMERICALANALYSIS
下載積分: 5 賞幣
上傳時間:2024-03-01
頁數(shù): 72
大?。?1.4(MB)
子文件數(shù):
-
簡介:哈爾濱工程大學(xué)碩士學(xué)位論文小型航空發(fā)動機傳感器容錯控制技術(shù)研究姓名劉漢斌申請學(xué)位級別碩士專業(yè)控制工程指導(dǎo)教師蘭海;何保成20111104哈爾濱工程大學(xué)碩士學(xué)位論文II
下載積分: 5 賞幣
上傳時間:2024-03-01
頁數(shù): 70
大?。?2.2(MB)
子文件數(shù):
-
簡介:航天遙測數(shù)據(jù)實時存儲及可視化系統(tǒng)設(shè)計與實現(xiàn)重慶大學(xué)碩士學(xué)位論文(專業(yè)學(xué)位)學(xué)生姓名邱翊峰指導(dǎo)教師柴毅教授兼職導(dǎo)師王剛高工學(xué)位類別工程碩士(控制工程)重慶大學(xué)自動化學(xué)院二O一七年四月DESIGNIMPLEMENTATIONOFREALTIMESTAGEVISUALIZATIONSYSTEMFAERIALTELEMETRYDATAATHESISSUBMITTEDTOCHONGQINGUNIVERSITYINPARTIALFULFILLMENTOFTHEREQUIREMENTFTHEPROFESSIONALDEGREEBYQIUYIFENGSUPERVISEDBYPROFCHAIYIPLURALISTICSUPERVISEDBYSENIENGWANGGANGSPECIALTYMECONTROLENGINEERINGCOLLEGEOFAUTOMATIONOFCHONGQINGUNIVERSITYCHONGQINGCHINAAPRIL2017
下載積分: 5 賞幣
上傳時間:2024-03-01
頁數(shù): 80
大?。?3.47(MB)
子文件數(shù):
-
簡介:中南工業(yè)大學(xué)博士后學(xué)位論文航空剎車用CC復(fù)合材料氧化行為抗氧化涂層的研究姓名易茂中申請學(xué)位級別博士后專業(yè)材料學(xué)指導(dǎo)教師黃伯云19990701出爐。其最佳抗氧化效果為9000C、2小時靜態(tài)氧化失重率為015%,9000C、4小時氧化失重率為113%。5未固化處理的涂層試樣900。C靜態(tài)氧化動力學(xué)曲線呈二段直線型,而固化處理的涂層試樣在900。C氧化的動力學(xué)曲線具有拋物線形狀,不論涂層固化與否在較低溫度的700。C靜態(tài)氧化動力學(xué)曲線基本上呈直線型。6帶涂層的C/C復(fù)合材料氧化過程是一個復(fù)雜的氣固反應(yīng)過程,包括I氧氣向內(nèi)的擴散;2氧與涂層中的耗氧組元反應(yīng)生成新的陶瓷組元;3進入涂層與基體材料界面的氧與材料發(fā)生氧化反應(yīng)形成氣體;4反應(yīng)氣體向外擴散。關(guān)鍵詞C/C復(fù)合材料氧化抗氧化涂層飛機剎車盤
下載積分: 5 賞幣
上傳時間:2024-03-01
頁數(shù): 98
大小: 3.27(MB)
子文件數(shù):
-
簡介:中南大學(xué)碩士學(xué)位論文航空發(fā)動機軸間密封CC復(fù)合材料的制備及摩擦磨損特性研究姓名彭春蘭申請學(xué)位級別碩士專業(yè)材料學(xué)指導(dǎo)教師易茂中20020101ABSTRACTTHESEALRINGISTHECRITICALPARTFBRTHESEALINGOFTHEMAINAXISOFAEROPLANEENGINEACCORDIⅡGTOTHEREQUIREMEⅡTOFAPPLYINGCONDITIONS,ITMUSTHAVEHIGHSTRENGTH,EXCELLENTOXIDATIONRESISTANCEANDLOWCOEFFICIENTOFFRICTIONANDWEARRATIOTHECARBONCARBOⅡCOMPOSITESWEREFABRICATEDANDTHEIRPROPERTIESWEREANALYZEDWHAT’SMORE,F(xiàn)RICTIONANDWEARPROPERTIESOFTWOTYPESOFMATERIALS,CARBONCARBONCOMPOSITEANDHIGHSTREⅡGTHGRAPHITEW血ICHWASSUPPOSEDTOBEUSEDASTHESEALRINGOFTHEMAINAXISOFAEROPLANEENGINE,WEREINVESTIGATEDACCORDIⅡGTOTHEREQUIREMENTOFAPPLYINGCONDITIONSANDPFOPERTIESOFTHESEAL“ⅡGOFTHEMAINAXISOFAEROPLANEENGINE,PREFBRMSWEREDESIGNEDINTOTHESUBSTRATETHATTHECARBONCLOTHANDFELTALTERNATELYWEREWINDEDAROUⅡDTHECYLIⅡDERAⅡDTHENNEEDLEDWITHCARBONFIBERINTHERADIALDIRECTIONANDTHEOTHER3一DWEAVIⅡGSUBSTRATETBREINFBRCETHEFIBREANDTHEMATRIXCONNECTING,PREFORMSWEREDENSIFIEDBYCVDFIRSTLYTHEPYROLYTICCARBOⅡWITHRL/SLSTRUCTUREORSLSTRUCTUREWASOBTAINEDAFTERTHATTHEMATERIALSWEREFURTHERDENSIFIEDWITHRESINANDHEATTREATEDAT2L00℃THESTRENGTH觚DWEARRESISTANCEWASIMPROVED,ANDTHERESINWOULDGUARANTEETHESEALINGEFFECTAFTERHEATTREATMENT,THEDEGREEOFGRAPHITIZATIONOFTHEMATERIALSWASABOUT30~50%,ANDTHEDEGREEOFGRAPHITIZATIONOFMATERIALL6拌WASAMOUNTT0471%THEHARDNESSOFTHE3DPREFBRMMATERIALWASCLOSEINTHERADIALANDCIRCUMAMBIENTDIRECTIONBUTTHEHARDNESSOFTHEOTHERPREFORMWASALMOSTANISOTROPICTHETHERMALCONDUCTIVITYWASALSOANISOTROPICTHECOEFFICIENTOFTHERMALEXP蚰SIONDECREASEDWITHTHETEMPERATUREINCREASEDWHEN400℃,ITWASATTHEBOTTOM,鋤DWHEⅡTO500℃,ITINCREASEDANDTHEMECHANICALPROPERTYOFCARBONCARBONCOMPOSITEWASPSEUDOPLASTICBYSTUDYINGFICTIOⅡANDWEAROFTHECARBONCARBONCOMPOSITEANDIT
下載積分: 5 賞幣
上傳時間:2024-03-01
頁數(shù): 85
大小: 5.55(MB)
子文件數(shù):
-
簡介:中圖分類號V2337論文編號102870215S103學(xué)科分類號082502碩士學(xué)位論文航空發(fā)動機控制系統(tǒng)傳感器故障診斷與容錯控制研究生姓名姜潔學(xué)科、專業(yè)航空宇航推進理論與工程研究方向航空發(fā)動機傳感器故障診斷指導(dǎo)教師李秋紅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一五年三月NANJINGUNIVERSITYOFAERONAUTICSANDASTRONAUTICSTHEGRADUATESCHOOLCOLLEGEOFENERGYANDPOWERENGINEERINGRESEARCHONAEROENGINECONTROLSYSTEMSENSORFAULTDIAGNOSISANDFAULTTOLERANTCONTROLATHESISINAEROSPACEPROPULSIONTHEORYANDENGINEERINGBYJIANGJIEADVISEDBYASSOCIATEPROFESSORLIQIUHONGSUBMITTEDINPARTIALFULFILLMENTOFTHEREQUIREMENTSFORTHEDEGREEOFMASTEROFENGINEERINGMARCH,2015
下載積分: 5 賞幣
上傳時間:2024-03-01
頁數(shù): 73
大小: 13.67(MB)
子文件數(shù):
-
簡介:西北工業(yè)大學(xué)碩士學(xué)位論文某型航空螺旋離心泵性能計算研究姓名何海強申請學(xué)位級別碩士專業(yè)控制理論與控制工程指導(dǎo)教師郭迎清20040301ABSTRACTFUELPUMPANDLUBEPUMPUSEDINPRESENTAEROENGINEANDSPACEENGINEAREORIENTEDTOSMALLERVOLUME,BIGGERFLUXANDHIGHERPRESSURETHEYDIFFERSMUCHFROMTHETRADITIONALHYDRAULICELEMENTBOTHINMECHANICSANDINPRINCIPLETHEFRESHTHOUGHTANDCUTEMETHODUSEDINTHESEPUMPSMAKETHEMWORKBETTERANDCONTRIBUTEMORETOTHEOPERATIONOFTHERULESYSTEMTHUS,ITISOFMUCHINDISPENSABILITYTOFINDOUTTHENEWIDEASANDEXCLUSIVEMECHANICSSTRUCTUREANDPERFORMANCEOFASCREWCENTRIFUGALPUMPUSEDINAEROENGINEWASDISCUSSEDINTHISPAPERANDTHECALCULATIONMETHODOFTHEPUMP’SPERFORMANCEWASALSOGIVENOUTTHEPAPERBEGINSWITHTHEDISCUSSIONOFTHEOPERATINGPRINCIPLEANDFUNCTIONOFTHESCREWINDUCERSPECIALELEMENTOFTHEPUMP,ANDTHENGIVESTHEDEFINITIONANDRELATIONSHIPOFTHEPARAMETERSANDTHECURVEFUNCTIONOFTHEINDUCERASWELL,WHICHISOFGREATIMPORTANCETODATAANALYZINGANDPUMPMANUFACTURINGBYPRESENTINGTHESIMPLIFIEDFLOWMODEL,THEFLOWANDVELOCITYTRIANGLESWEREANALYZEDTNTHEPAPERTHEAUTHOREXCAVATEDTHEPERFORMANCE,CALCULATEDTHEVELOCITY,PRESSUREANDFLOWLOSSOFTHEWORMSHELL,THEOUTLETELEMENTOFTHEPUMPACCORDINGTOTHECOMMONMETHODOFTHEPERFORMANCECALCULATIONOFCENTRIFUGALPUMP,THEAUTHORCALCULATEDTHEHEADANDPOWEROFTHEPUMP,SHOWEDTHEWAYTOGETTHEPRESSUREOFTHEOUTLETANDTHEAUTHORALSOINDICATEDTHEIMPACTOFTHESTRUCTUREPARAMETERSANDTHUSGUIDEDTHEDESIGNOFTHEPUMPTHERESULTSSHOWTHATTHESCREWCENTRIFUGALPUMPISATYPEOFWELLWORKINGPUMPWITHGOODPERFORMANCE,ITHASHIGHERHEADANDEFFICIENCYWITHBETTERABILITYOFANTIEROSIONBOTHTHEPARAMETERSANDTHEWORKINGCONDITIONCANAFFECTTHEPUMP’SOPERATIONANDPERFORMANCEDIRECTLYITISAUSEFULWAYTOCHANGETHESEPARAMETERSTOMEETTHENEEDOFTHEENGINEERING【KEYWORDS】SCREWCENTRIFUGALPUMP;SCRE%VINDUCER;WORMSHELLPERFORMANCECALCULATION
下載積分: 5 賞幣
上傳時間:2024-03-01
頁數(shù): 75
大?。?1.91(MB)
子文件數(shù):
-
簡介:碩士學(xué)位論文士學(xué)位論文航空遠(yuǎn)距離傾斜攝影相機掃描穩(wěn)像及像移補償技術(shù)研究RESEARCHONSCANNINGMOTIONCOMPENSATIONOFAIRBNECAMERAFLONGRANGEOBLIQUEPHOTOGRAPHY李福東李福東哈爾濱工業(yè)大學(xué)哈爾濱工業(yè)大學(xué)2015年7月CLASSIFIEDINDEXV2435UDC6213DISSERTATIONFTHEMASTERDEGREEINENGINEERINGRESEARCHONSCANNINGMOTIONCOMPENSATIONOFAIRBNECAMERAFLONGRANGEOBLIQUEPHOTOGRAPHYCIDATELIFUDONGSUPERVISPROFGUANYINGZIACADEMICDEGREEAPPLIEDFMASTEROFENGINEERINGSPECIALITYSPACECRAFTDESIGNAFFILIATIONSCHOOLOFASTRONAUTICSDATEOFDEFENCEJULY2015DEGREECONFERRINGINSTITUTIONHARBININSTITUTEOFTECHNOLOGY
下載積分: 5 賞幣
上傳時間:2024-03-01
頁數(shù): 62
大小: 3.17(MB)
子文件數(shù):
-
簡介:中國民用航空學(xué)院碩士學(xué)位論文BP網(wǎng)絡(luò)與航空發(fā)動機模型在間隙對性能影響研究中的應(yīng)用姓名馬曉剛申請學(xué)位級別碩士專業(yè)航空宇航推進理論與工程指導(dǎo)教師白杰李書明20040110中國民用航空學(xué)院碩士學(xué)位論文ABSTRACTTHISPAPEROPTIMIZEDANDANALYZEDTHEDATAOFASSEMBLYTOLERANCESINTEGRATEDWITHTHEFACTDURINGAEROENGINEMAINTENANCE,ANDASSEMBLEDAMODELTORESEARCHTHERELATIONSHIPBETWEENTHETOLERANCESOFKEYENGINECOMPONENTSINCLUDINGTIPCLEMANCESOFROTATINGCOMPONENTSANDENGINEPERFORMANCETHROUGHTHECOMBINEDUSEOFBPARTIIKIALNEURALNETWORKANDCONVENTIONALTHEORETICMODELOFAEROENGINEINTHERESULTOFTHISPAPER,SOMERULESAREGIVENTOOUTLINETHESERELATIONSHIPSTHATISVERYUSEFULTOCONTROLTHEASSEMBLYTOLERANCESANDACHIEVEHIGHLEVELSOFENGINEPERFORMANCEAFTERSERVICINGDATAOFASSEMBLYTOLERANCESDISCUSSEDINTHISPAPERARESTATICTOLERANCEBEFORETESTANDEMPHASIZEPARTICULARLYOILINVESTIGATINGTHERELATIONSHIPBETWEENCLEARANCESOFASSEMBLYBLADESANDTHEENGINEPERFORMANCEBESIDES,BPARTIFICIALNEURALNETWORKANDWORKINGCONDITIONEQUATIONOFTHEENGINEAREADOPTEDINTHISPAPERTOFORECASTTHEEFFECTOFTIPCLEARANCEONPARAMETERSOFENGINESUCHASEFFICIENCYOFPRESSURECOMPRESSOGEFFICIENCYOFTURBINE,THETEMPERATUREINTHEFRONTOFTURBINEANDEXHAUSTGASTEMPERATUREBECAUSEOFTHELIMITATIONOFTHEANALYTICALMETHODOFMATHEMATICS,THERELATIONSHIPOFTOLERANCERECORDEDDURINGMAINTAININGANDENGINEPERFORMANCEDESCRIBEDINTHISPAPERCORRESPONDSTOTHESPECIFICSERVICINGCONDITIONANDMODELBUTTHEMETHODCANAPPLYTODEALWITHOTHERENGINEMODELTHEDATAINTHISPAPERARECOLLECTEDFROMACIVILTURBINEFANENGINEWITHAFAN,TWOAXIALCOMPRESSORS,ANAXIALHIGHPRESSURETURBINEHPRLL,ANDANAXIALLOWPRESSURETURBINELPTCANREPRESENTCOMMONMODELTHROUGHANALYZINGINTHISPAPERWEVERIFIEDTHATTIPCLEARANCESAFFECTSENGINEPERFORMANCEANDOPERABILITYATTHESAMETIMESOMEOTHERTOLERANCESHAVEEFFECTSTOENGINEPERFORMANCESOMECONCLUSIONDRAWNINTHISRESEARCHCANOFFERREFERENCETELEVANTRESEARCHERFINALLY,ANAPPLICATIONPROGRAMPW4000ASSEMBLYTOLERANCESANDENGINEPERFORMANCEANALYSISSYSTEMWASDEVELOPEDINVCLANGUAGEANDODBCDATABASETHROTLGHANALYSISANDPREDICTIONEMPLOYEDTHISSYSTEMTHEVALIDITYOFTHERESEARCHAPPROACHESINTHISPAPERWASVERIFIEDKEYWORDSAEROENGINE,PERFORMANCE,TOLERANCE,BPANN
下載積分: 5 賞幣
上傳時間:2024-03-01
頁數(shù): 61
大小: 2.2(MB)
子文件數(shù):
-
簡介:碩士學(xué)位論文碩士學(xué)位論文基于貝葉斯網(wǎng)絡(luò)的航天器健康管理系統(tǒng)THESPACECRAFTHEALTHMANAGEMENTSYSTEMBASEDONBAYESIANWKS張力元張力元哈爾濱工業(yè)大學(xué)哈爾濱工業(yè)大學(xué)2015年6月CLASSIFIEDINDEXV467UDC681513DISSERTATIONFTHEMASTER’SDEGREEINENGINEERINGTHESPACECRAFTHEALTHMANAGEMENTSYSTEMBASEDONBAYESIANWKSCIDATEZHANGLIYUANSUPERVISASSOCIATEPROFYIGUOXINGACADEMICDEGREEAPPLIEDFMASTEROFENGINEERINGSPECIALITYCONTROLSCIENCEENGINEERINGAFFILIATIONSCHOOLOFASTRONAUTICSDATEOFDEFENCEJUNE2015DEGREECONFERRINGINSTITUTIONHARBININSTITUTEOFTECHNOLOGY
下載積分: 5 賞幣
上傳時間:2024-03-01
頁數(shù): 69
大?。?1.23(MB)
子文件數(shù):
-
簡介:合肥工業(yè)大學(xué)碩士學(xué)位論文航空軸承性能試驗測試控制系統(tǒng)的研制姓名劉蘇亞申請學(xué)位級別碩士專業(yè)機械工程指導(dǎo)教師尹志強徐同申20040401THERESEARCHINGANDMANUFACTURINGOFCONTR0IIINGANDTESTSYSTEMFORAVIATIORBERINGTESTERABSTRACTTHEAVIATIONBEARING‘‘661701”ISDEVELOPEDASINTERVENINGBEARINGWHICHISALSOCALLEDONEWAYBEARINGOFAVIATIONENGINEFORTHE608RESEARCHINSTITUTEOFAVIATIONINDUSTRYBYLUOYANGBEARINGSCIENCEANDTECHNOLOGYCD.,LTD.THEPERFORMANCEOFTHEBEARINGISDIRECTLYASSOCIATEDWITHTHESTARTUP.THEREFOR,ITISVERYIMPORTANTTOTESTTHEONEWAYBEARING“66I701”。TWOELECTRICSPINDLESAREUSED,ONESIMULATESTHESTARTERMOTOR,THEOTHERSIMULATESENGINETODRIVEBEARING.INTHETEST,THESPEEDOFREVOLUTION,TEMPERATURE,OILSUPPLYPRESSUREANDOTHERPARAMETERAREMEASUREDBYTHEINDUSTRYCONTROLCOMPUTER。ATTHESAMETIME,ITDETAILEDDEMONSTRATEANDCARRYOUTTHEWAY,WHICHAPPLYHOUSINGELECTRICSPINDLESATGENERATIONSTATETOCARRYOUTHOUSINGTOQUELOADINGINTHEJOINTTESTINGANDINDIRECTLYESTIMATIONHOUSINGTORQUELOADINGBYTHEELECTROMAGNETISMTORQUEOFINNERTUBEELECTRICSPINDLES.THUS,THETECHNICALPROBLEMTHATTHEHIGHSPEEDSHAFTINGTORQUELOADINGDEVICEANDTORQUESENDERAREDIFFICULTTOINSTALLISSOLVEDANDITSAVESASETOFEXPENSIVEHIGHSPEEDSHAFTINGTORQUELOADINGANDMEASURINGDEVICE.THEOUTCOMEFILLTHEBLANKINTHEDOMESTICFIELDOFTORQUELOADINGFORHIGHSPEEDONEWAYBEARINGTEST.ANDITREACHESADVANCEDLEVELINOURCOUNTRY。THEPARAMETRICSELFADJUSTINGONLINEINTERPOLATIONFUZZYCONTROLISFORMEDBYTHEAPPLYINGPRACTICALINTERPOLATIONMETHODANDPARAMETRICSELFADJUSTINGMETHODTOROUTINEFUZZYCONTROLSYSTEMTHESYSTEMLOWERTHESTATICERRORANDAVOIDTHEFLUTTEROFROUTINEFUZZYCONTROLLER.THESIMULATIONRESULTSPROVETHATTHISSYSTEMHASRAPIDDYNAMICRESPONSESPEEDANDHIGHSTEADYSTATE,ASWELLASGOODFOLLOWINGCAPABILITYANDSTRONGROBUSTNESS.
下載積分: 5 賞幣
上傳時間:2024-03-01
頁數(shù): 64
大?。?2.02(MB)
子文件數(shù):
-
簡介:華中科技大學(xué)博士學(xué)位論文航天繼電器觸簧系統(tǒng)接觸彈跳及其影響因素研究姓名熊軍申請學(xué)位級別博士專業(yè)電氣工程指導(dǎo)教師何俊佳20081107II最后,本文針對某型航天繼電器的觸頭彈跳模型進行校驗,利用ANSYS建立其電磁系統(tǒng)模型結(jié)合ADAMS建立的接觸系統(tǒng)模型進行觸頭彈跳的動力學(xué)仿真,并與理論計算結(jié)果和實驗結(jié)果進行比較,以驗證模型的有效性。關(guān)鍵詞航天繼電器觸簧系統(tǒng)接觸彈跳多體動力學(xué)理論激光三角原理
下載積分: 5 賞幣
上傳時間:2024-03-01
頁數(shù): 130
大?。?2.12(MB)
子文件數(shù):
-
簡介:東南大學(xué)碩士學(xué)位論文加強政府航空安全管理對策研究姓名陳忠躍申請學(xué)位級別碩士專業(yè)公共管理指導(dǎo)教師袁久紅20110930ABSTRACTTITLETHESTRATEGYFORTHEGOVERNMENTTOSTRENGTHENAVIATIONSAFETYMANAGEMENTNAMECHENZHONGYUESUPERVISORYUANJIUHONGUNIVERSITYSEUSOUTHEASTUNIVERSITYALONG霄ITHTHERAPIDDEVELOPMENTOFCIVILAVIATIONINDUSTRYOFCHINA。THEDEMANDOFAIRTRANSPORTHASBEENDRAMATICALLYINCREASINGTHECONFLICTBETWEENTHERAPIDGROWTHOFTHEFLIGHTTRAFFICANDTHERELATIVELYWEAKSAFETYBASISISMORESERIOUSTHISPAPERFIRSTANALYZESTHEPRESENTSITUATION8NDCHARACTERISTICSOFTHECIVILAVIATIONSAFETYMANAGEMENTTHENFROMTHESTATISTICALANALYSISOFTHECRASHINTHEPASTTWODECADES,WEOBTAINTHEMAINMANAGEMENTFACTORSFORAVIATIONSAFETYBASEDONTHEABOVEMANAGEMENTFACTORS,霄EANALYZESTHEMAINSECURITYMANAGEMENTPROBLEMSINTHEAVIATIONINDUSTRYFROMTHEPLANNING,ORGANIZATIONCOORDINATIONANDCONTROLFUNCTIONSWEPROVETHATTHE90VER咖ENTNEEDENHANCETHEAVIATIONSAFETYMANAGEMENTFROMSCIENTIFICPLANNING。MACROCONTROL,INSTITUTIONALCHANGE,STRENGTHENINGPRODUCTIONSAFETYRESPONSIBILITY,STRENGTHENINGEMERGENCYMANAGEMENTANDSOONTHEGOVERNMENTISTHEMOSTIMPORTANTAVIATIONSAFETYREGULATORTHISARTICLEPROVIDESTHESTRATEGYFORTHEGOVERNMENTSTRENGTHENINGAVIATIONSECURITYMANAGEMENTTHESTUDYPROVIDESAGOODREFERENCEFORTHEGOVERNMENTTOENHANCETHEAVIATIONSAFETYMANAGEMENTKY的RD8GOVER珊ENT;CIVILAVIATION;SAFETY艙NAGEMENT№NAGEMENTSYSTEM
下載積分: 5 賞幣
上傳時間:2024-03-01
頁數(shù): 47
大?。?2.56(MB)
子文件數(shù):