簡(jiǎn)介：分婁號(hào)塑111密級(jí)單位代碼I學(xué)號(hào)塑墮7奪肥工學(xué)火警HEFEIUNIVERSITYOFTECHNOLOGY碩士學(xué)位論文MASTERDISSERTATION論文題目汽車后橋主減速器裝配過程的學(xué)位類別學(xué)科專業(yè)工程領(lǐng)域作者姓名導(dǎo)師姓名完成時(shí)間力學(xué)性能分析與隔套選型學(xué)歷碩士固體力學(xué)曹張牛忠榮教授2006年6月ANALYSISOFTHEMECHANICALCAPABILITYINTHEASSEMBLEDTECHNIQUEOFTHEMAINREDUCEROFREARAXLEANDSELECTIONOFTHETYPEFORTHESLEEVEGASKETSABSTRACTTHISPAPERSTUDIESTHEMECHANICALCAPABILITYOFTHEASSEMBLYOFTHEMAINREDUCERBASEDONTHEINVESTIGATIONOFNATIONALANDINTERNATIONALASSEMBLYLINEOFTHEMAINREDUCERTHROUGHANALYZINGTHESTRUCTUREOFTHEMAINREDUCER，SOMEMECHANICALFACTORS，WHICHAFFECTTHEQUALITYOFTHEASSEMBLINGPROCESSOFTHEREARAXLE，AREFOUNDOUTTHETRADITIONALTECHNIQUEINASSEMBLINGREARAXLEISHOWTODETERMINETHETHICKNESSOFTHEGASKETBASEDONPRETIGHTENMOMENTINTHEPROCESSOFASSEMBLY，THEANALYTICALMODELOFTHEMAINREDUCEISESTABLISHEDTHROUGHTHEORETICALANALYSISOFTHECONNECTIONBETWEENSCREWEDMOMENTANDAXLEFORCEBYUSINGFINITEELEMENTANALYSIS，THESUITABLETHICKNESSOFTHEGASKETISOBTAINEDWECANLEARNTHEINFLUENCEOFMECHANICALCAPABILITYOFMAINREDUCERSANDFINDTHEVARIABLERULEOFTHEPRETIGHTENINGFORCEWITHADJUSTINGTHETHICKNESSOFGASKETSTHERESULTSOFTHEPAPERISBENEFICIALTOIMPROVETHEASSEMBLINGQUALITYOFMAINREDUCERANDTOCONTROLPRETIGHTENPURPOSEOFTHEAXLEINTHESECONDPART，WEOBTAINSTRESSFIELDANDDISPLACEMENTFIELDOFTHEMAINREDUCERAFTERASSEMBLYBYFINITEELEMENTMETHODASARESULT，STRENGTHEVALUATIONOFTHEMAINREDUCERISPERFORMEDBASEDONTHESERESULTS，SOMETHEORETICSUGGESTIONSFORTHEDESIGNANDMANUFACTUREOFTHEMAINREDUCERAREPROVIDEDACCORDINGTOTHESLEEVEGASKET’SFUNCTIONANDINVESTIGATIONOFTHEAPPLIEDSTATUSOFFOREIGNCOUNTRIESABOUTELASTICSLEEVEGASKET，WESUGGESTTHATTHESHAPEOFSTIFFSLEEVEGASKETS，WHICHAREUSEDCURRENTLYINCHINA，SHOULDBECHANGEDTHEPRESENTPAPERPROPOSEDANEWTYPEOFSLEEVEGASKETWITHMOREFLEXIBILITYINSTEADOFORIGINALSTIFFONEINORDERTOIMPROVETHEMECHANICALCAPABILITYOFTHEMAINREDUCERKEYWORDSASSEMBLYOFREARAXLE，MAINREDUCERBEARINGPRETIGHTENED，F(xiàn)INITEELEMENTANALYSIS，SLEEVEGASKET，GASKET

簡(jiǎn)介：申請(qǐng)上海交通大學(xué)工程碩士學(xué)位論文某MPVMPV車型車型主減速器嘯叫機(jī)理主減速器嘯叫機(jī)理研究研究及改進(jìn)設(shè)計(jì)及改進(jìn)設(shè)計(jì)院系機(jī)械與動(dòng)力工程學(xué)院工程領(lǐng)域工程領(lǐng)域車輛工程交大導(dǎo)師交大導(dǎo)師蔣偉康教授企業(yè)導(dǎo)師企業(yè)導(dǎo)師呂俊成高級(jí)工程師工程碩士工程碩士張亮學(xué)號(hào)1130212127上海交通大學(xué)機(jī)械與動(dòng)力工程學(xué)院上海交通大學(xué)機(jī)械與動(dòng)力工程學(xué)院2012016年5月RFRTIEEIONIHAIBFFE4EEFRFFETLLICE445FRILTF€TJ4DTRITSEDBDEORRDEEEEFE3O96D_OHELHIBTRAE3DQEREOJR6I4TJ1GOLTTIUEEAR36IRC6__N61“F3E4FIQ9LAF4ETLIRIFS4RAETTRTRTIAL“ZVFU

簡(jiǎn)介：碩士學(xué)位論文碩士學(xué)位論文約束阻尼結(jié)構(gòu)及艦船用減速器箱體的阻尼特性分析DAMPINGACTERISTICSANALYSISOFCLDSTRUCTUREMARINETRANSMISSIONBOX楊瑞哈爾濱工業(yè)大學(xué)哈爾濱工業(yè)大學(xué)2014年6月CLASSIFIEDINDEXO322TH1131UDC53135341DISSERTATIONFTHEMASTERDEGREEINENGINEERINGDAMPINGACTERISTICSANALYSISOFCLDSTRUCTUREMARINETRANSMISSIONBOXCIDATEYANGRUISUPERVISDEPUTYPROFLIANGTINGWEIACADEMICDEGREEAPPLIEDFMASTEROFENGINEERINGSPECIALITYGENERALFUNDAMENTALMECHANICSAFFILIATIONSCHOOLOFASTRONAUTICSDATEOFDEFENCEJUNE2014DEGREECONFERRINGINSTITUTIONHARBININSTITUTEOFTECHNOLOGY

簡(jiǎn)介：重型車輪邊減速器強(qiáng)度與疲勞壽命預(yù)測(cè)學(xué)位論文完成日期‘指導(dǎo)教師簽字答辯委員會(huì)成員簽字重型車輪邊減速器強(qiáng)度與疲勞壽命預(yù)測(cè)II

簡(jiǎn)介：學(xué)科分類號(hào)論文編號(hào)安徽理工大學(xué)碩士學(xué)位論文電動(dòng)汽車輪邊減速器齒輪攪油損失研究與分析作者姓名王玉專業(yè)名稱扭撼王猩研究方向扭越遮讓導(dǎo)師姓名匾堂云副麴援導(dǎo)師單位扭越工程堂陵副導(dǎo)師姓名王越副塾援副導(dǎo)師單位墊越王堂院．答辯委員會(huì)主席夏圭態(tài)論文答辯日期2015年6月5日安徽理工大學(xué)研究生處2015年月日獨(dú)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)行的研究工作及取得的研究成果。據(jù)我所知，除了文中特別加以標(biāo)注和致謝的地方N,,TJT，論文中不包含其他人已經(jīng)發(fā)表或撰寫過的研究成果，也不包含為獲得塞邀堡三太堂或其他教育機(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)均已在論文中作了明確的說明并表示謝意。學(xué)位論文作者簽名至區(qū)日期巡年一多月』日學(xué)位論文版權(quán)使用授權(quán)書本學(xué)位論文作者完全了解塞邀壟三太堂有保留、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)單位屬于塞徵堡王太堂。學(xué)校有權(quán)保留并向國(guó)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。本人授權(quán)安徽理工大學(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(kù)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授權(quán)書學(xué)位論文作者簽名王己簽字日期刀燈年6月乃日導(dǎo)師簽名、F≯磁L簽字日期J『鏟多月／D日＼鄉(xiāng)

簡(jiǎn)介：作為汽車傳動(dòng)系統(tǒng)中降低轉(zhuǎn)速、增加扭矩的關(guān)鍵部件，汽車主減速器質(zhì)量的好壞對(duì)整個(gè)傳動(dòng)系統(tǒng)的工作性能有重要影響。準(zhǔn)雙曲面齒輪是汽車主減速器的核心部件，其在嚙合過程中所產(chǎn)生的接觸印痕，是主減速器質(zhì)量的直觀反映。接觸印痕的位置、大小和形狀，是評(píng)價(jià)主減速器質(zhì)量的主要性能指標(biāo)。傳統(tǒng)的人工目測(cè)檢測(cè)方式易受主觀因素的影響，而機(jī)器視覺正在工業(yè)領(lǐng)域取得越來(lái)越廣泛的應(yīng)用。本文的研究重點(diǎn)就是采用數(shù)字圖像處理技術(shù)，對(duì)齒輪嚙合印痕圖像進(jìn)行特征提取。文章主要從以下幾個(gè)方面進(jìn)行了研究首先，對(duì)準(zhǔn)雙曲面齒輪嚙合印痕圖像進(jìn)行了增強(qiáng)處理。在對(duì)印痕圖像進(jìn)行灰度化處理的基礎(chǔ)上，分別采用基于直方圖均衡化、基于圖像內(nèi)容和基于線性灰度變換這三種方式對(duì)印痕圖像進(jìn)行增強(qiáng)處理，均取得了良好的增強(qiáng)效果。其次，對(duì)準(zhǔn)雙曲面齒輪嚙合印痕圖像進(jìn)行了邊緣提取處理。文章分別采用基于微分算子、基于線性濾波和基于小波變換的邊緣提取方式對(duì)增強(qiáng)后的印痕圖像進(jìn)行邊緣提取處理，并對(duì)提取結(jié)果進(jìn)行了對(duì)比?；谖⒎炙阕拥倪吘壧崛》治鲋校攸c(diǎn)論述了ROBERTS算子、SOBEL算子和PREWITT算子的邊緣檢測(cè)原理；基于線性濾波的邊緣提取分析中，著重介紹了應(yīng)用最廣泛的CANNY算子和LOG算子；基于小波變換的邊緣檢測(cè)方式則重點(diǎn)闡述了小波的邊緣檢測(cè)原理，并采用常用的幾種小波函數(shù)對(duì)印痕圖像進(jìn)行了邊緣提取處理。最后，對(duì)準(zhǔn)雙曲面齒輪嚙合印痕圖像進(jìn)行了特征參數(shù)提取和分析。采用形態(tài)學(xué)理論對(duì)提取的印痕邊緣圖像作進(jìn)一步處理，得到完整的印痕及齒廓邊緣；計(jì)算得到基于印痕圖像的特征參數(shù)，并建立起基于LABVIEW的準(zhǔn)雙曲面齒輪嚙合印痕圖像邊緣提取系統(tǒng)。

簡(jiǎn)介：合肥工業(yè)大學(xué)碩士學(xué)位論文后橋主減速器裝配的關(guān)鍵測(cè)量技術(shù)姓名葛海龍申請(qǐng)學(xué)位級(jí)別碩士專業(yè)機(jī)械電子工程指導(dǎo)教師林巨廣20050301KEYMEASU“NGTECHNIQUESINASSEMBLYLINEFORMAINREDUCEROFREARAXLEABSTRACTTHEPAPERFHLLYINVESTIGATESTHECURFENTSNUA“ONOFCIVILANDFOREIGNASSEMBLYNNES．FROMTHEAUTOMOBILE’SSITUATIONINOURCOUNTRY，THEASSEMBLYANDKEYMEASURINGTECHNIQUESAPPLICATIONFORMAINREDUCEROFREARAXLEARESTUDIED．BASEDONTHESTRUCTUREFEATUREOFMAINGEARCOMPOUNDINMAINREDUCER，TWOIMPORTANTTHINGSINASSEMBLYTECHNIQUEOFFEARAXLETHEPRETI曲TENEDFIXINGOFBEARINGANDTHEADJUSTINGOFGEARGEA“NGAREANALYZED．THECONTROLLEDVARIABLEPRETIGHTENINGMOMENTINTHEPROCESSOFASSEMBIYISTHENDECIDEDANDTHEMETHODFORIMPROVEMENTOFAGSEMBLYQUALITYISPOINTEDOUTADJUSTMENTOFBEARINGPRETIGHTENINGSTATEBYCONTROLOFTHEGASKETTHICKNESS．FROMTHIS，ACOMMONQUESTIONOFSPACEMEASURINGISTHENSUGGESTEDINTHISP印ER．THROU曲THEORE“CALANALYSISONRELATIONSHIPBETWEENTHESCREWEDMOMENTANDTHEAXLEFORCE，THEWAYOFPASSINGFORCEAMONGDIF托RENTPARTSISSTUDIED．BYEXPERIMENT，THEFELATIONBETWEENPRETI曲TENINGMOMENTANDAXLEFORCEISFOUNDOUT．THISNOTONLYSTATESTHEFCASIBILITYOFADJUSTMENTOFPRETIGHTENINGMOMENTBYCONTROIOFGASKETTHICKNESSCONTROLOFPRETIGLNENINGMOMENTBYCHANGINGOFDISTRIBUTIONOFAXLEFORCE，BUTALSOGUIDESTHEMODELINGOFTHEMEASUREMENT．DIF詫RENTFACTORSFORAF＆CTINGTHEMEASUREDPRETI曲TENINGMOMENTARESTUDIEDANDTHISSUPPLIESTHEPRINCIPLESOFTHEORETICALCOMPENSATIONFORIMPROVEMENTOFMEASURINGPRECISION．ABOVETHEFOUNDATIONOFTHEORE“CALRESEARCH，THEMEASURIN衛(wèi)MECHANISMWHICHISBASEDTHEINDUSTRYCONTROLCOMPUTERSYSTEMISDEVELOPED．THEMACHINECANMEETTHEREQUIREMENTOFASSEMBLYPRECISIONANDC柚BEUSEDINRAPIDPRODUCTIONOFASSEMBLYIINE．THEOPTIMIZEDCOMBINATIONWAYFORDIF托RENT．THICKNESSGASKETSAREALSOSUGGESTED．THISMAKESTHEDEVELOPEDMACHINEPRACTICAIINPRODUCTION．AFTERTHESELECTEDGASKETISASSEMBLEDINMAINREDUCEROFREARAXLE，THEON．1INEDETECTIN疊EQUIPMENTISUSEDTOMEASURETHEQUALITYOFASSEMBLY．THISNOTONLYCANCONTR01THEQUALITYOFASSEMBLEDPRODUCT，BUTALSOCANEVALUATETHECORRECTION，REASONABILITVANDUSABILITYOFTHEMACHINE．THROUGHTHEPRACTICAIAPPLICATIONINPRODUCTIONSPOT，ITRUNSWELL．THISPROVESITISREASONABLEINITSPRINCIPLE，CONSTRUCTIONDESIGNANDMEASURINGMETHOD．THEDEVELOPEDDEVICEHASAGOODNEXIBILITY，WHICHCANBEUSEDFORTHEON．1INE

簡(jiǎn)介：華中科技大學(xué)碩士學(xué)位論文車用液力減速制動(dòng)器研究姓名時(shí)軍申請(qǐng)學(xué)位級(jí)別碩士專業(yè)車輛工程指導(dǎo)教師過學(xué)迅2002330華中科技大學(xué)碩士學(xué)位論文ABSTRACTVEHICLESEQUIPPEDWITHFRICTIONALBRAKEWOULDCRERTELARGEQUANTITYOFHEATWHENUSEDCONTINUOUSLYFURTHERLNOREGREATINJUREANDINVALIDATIONWOULDBCCAUSEDTOTHEBRAKE’STHISREMAINSTOBEADIFFICULTPROBLEMANDITISALSOAMAINCAUSEOFTRA伍CACCIDENTSODESIGNSOMEKINDSOFRETARDERTESOLVETHISPROBLEMHASANPRACTICALSIGNIFICANCEHYDRAULICRETARDERISVERYSUITABLEFORCONTINUOUSBRAKINGSINCEITHASMANYADVANTAGESSUCHAS；LONGLIFE，LITTLEQUANTITYOFHEATANDGOODQUALITYOFCONTROL，THEDEVELOPMENTPROSPECTOFITISPROMISINGRESEARCHANDAPPLICATIONOFHYDRAULICRETARDERHASBEENDEEPLYINVESTIGATEDABROAD，WHILEITISJUSTBEGINNINGINCHINAN地MAINPURPOSEOFTHISDISSERTATIONISTODESIGNANEWKINDOFRETARDERADAPTINGTOCONTINUOUSBRAKING，STUDYITSDESIGNTHEORYANDMAKEAFORECASTTOITSCAPABILITYTHEHYDRAULICRETARDER’SCHARACTERANDITSDESIGNTHEORY眥INTRODUCEDINTHEBEGINNINGOFTHEARTICLEANDTHEN，THELIQUIDFLOWAGETHEORYINTHERETARDER’SCIRCLERANDITSCONSERVATIONOFENERGYDURINGTHEPERIODOFBRAKINGAREANALYZEDTHEPROCESSOFCHARGEANDDISCHARGEOFGASOLINEINRETARDER，THEAIRBLASTLOSSDURINGTHERETARDERDISEMPLOYMENTPHASEAREDISCUSSEDEITHERN地THEORIESOFONEDIMENSIONFLOWANDSIMILITUDEPRINCIPLE黜ADOPTEDINTHERETARDER’SDESIGNTHEORYANDPARAMETERSELECTIONALLOFTHISISHELPFULTOACHIEVEREGNLARIZATIONANDUNIVERSALITYOFTHEDESIGNOFHYDRAULICRETARDERATTHESANLETIME，THEHYDRAULICRETARDER’SDESIGNMODEL，THEORETICANALYSISMODELOFBRAKINGPERFORMANCEWEREESTABFISHEDNLEMATHEMATICALMODELOFCHARGEANDDISCHARGEOFGASOLINEINRETARDERANDTHEAIRBLASTLOSSTHEORYHADBEENUPBUILTN坨THEORETICANDEXPERIMENTALDATAWERECOMPAREDACCORDINGLYQUALITATIVEANALYSISOFEXPERIMENTERRORANDTHEORETICCALCULATIONERRORHADBEENDONETHEDESIGNANDBRAKINGPERFORMANCETHEORIESHADBEENVERIFIEDATTHESAMETIME，THERATIONALITYANDVALIDITYOFTHERETARDER’STHEORIESHADBEENTESTIFIEDKEYWARDSHYDRAULICRETARDERAUXILIARYBRAKINGVEHICLEII

簡(jiǎn)介：主減速器作為汽車驅(qū)動(dòng)系統(tǒng)的關(guān)鍵部件，它的質(zhì)量直接影響著整個(gè)驅(qū)動(dòng)系統(tǒng)的性能。主減速器的質(zhì)量主要受齒輪副嚙合性能的影響，可以通過齒輪副的齒面接觸印痕直觀的反映出來(lái)。因此，齒面接觸印痕的位置、形狀和大小等特征一直是主減速器質(zhì)量評(píng)價(jià)的重要指標(biāo)。傳統(tǒng)的齒面接觸印痕檢測(cè)方法以人工目測(cè)為主，主觀性強(qiáng)、精度不高、效率較低。針對(duì)人工目測(cè)法的不足，本文采用了一種基于機(jī)器視覺和圖像處理的主減速器齒面印痕檢測(cè)方法來(lái)實(shí)現(xiàn)自動(dòng)評(píng)價(jià)。論文首先從理論上分析了齒面接觸印痕的產(chǎn)生機(jī)理及其常見的影響因素；然后詳細(xì)介紹了敏感權(quán)重算法、單通道濾色算法、強(qiáng)度算法和自適應(yīng)權(quán)重算法等圖像灰度化方法，均值濾波、順序統(tǒng)計(jì)濾波和低通濾波等圖像平滑濾波方法，并對(duì)實(shí)物圖像的處理結(jié)果進(jìn)行了比較；然后對(duì)增強(qiáng)后的圖像進(jìn)行了基于灰度的閾值分割和數(shù)學(xué)形態(tài)學(xué)方法處理，得到了反映嚙合特征的印痕區(qū)域，并提取出了印痕區(qū)域的尺寸特征和方位特征，如面積，偏心率，質(zhì)心位置，旋轉(zhuǎn)角等；最后提出了齒面印痕圖像采集系統(tǒng)和圖像處理系統(tǒng)的框架結(jié)構(gòu)。論文基于LABVIEW虛擬儀器開發(fā)平臺(tái)，通過調(diào)用MICROVISION機(jī)器視覺產(chǎn)品自帶的動(dòng)態(tài)鏈接庫(kù)和NIIMAQVISION軟件包中的相關(guān)圖像處理函數(shù)，并結(jié)合MATLAB編程搭建了基于圖像處理的主減速器齒面印痕檢測(cè)系統(tǒng)。該系統(tǒng)涵蓋了印痕圖像采集、圖像增強(qiáng)處理、圖像分割處理、圖像特征提取及質(zhì)量評(píng)價(jià)等功能模塊。通過比較檢測(cè)系統(tǒng)獲得的印痕區(qū)域和人工識(shí)別獲得的印痕區(qū)域，驗(yàn)證了檢測(cè)系統(tǒng)的準(zhǔn)確性和高效性。論文所研究的主減速器齒面印痕檢測(cè)系統(tǒng)可作為主減速器總成質(zhì)量評(píng)價(jià)的一個(gè)組成部分，其提取的特征參數(shù)能較好的反映主減速器的嚙合狀況，該系統(tǒng)的應(yīng)用可以幫助改進(jìn)裝配工藝，且能更好的保障產(chǎn)品質(zhì)量，減少下線產(chǎn)品的返修率，提高生產(chǎn)效率，進(jìn)而降低企業(yè)的生產(chǎn)成本。

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簡(jiǎn)介：電子科技大學(xué)碩士學(xué)位論文針對(duì)主減速器質(zhì)量評(píng)價(jià)的振動(dòng)信號(hào)分析技術(shù)研究姓名黃嘉申請(qǐng)學(xué)位級(jí)別碩士專業(yè)精密儀器及機(jī)械指導(dǎo)教師丁杰雄20060201ABSTRACTINTHISPAPER，THEANALYSISOFTHEVIBRATIONSIGNALOFTHEAUTOMOBILEDRIVESHAFTISDESCRIBEDBASEDONTHECOMPREHENSIVEESTIMATINGMETHODOFTHEFINALDRIVETHEANALYSISMETHODISPROPOSEDTOFOCUSONANALYZINGONEOFTHE1MPORTANTTESTLNGTARGETSTHEMESHINGSTATESOFTHESPIRALBEVELGEARSANDDIFFERENTIALGEARSOFTHEFINALDRIVEWHENTHEYAREWORKINGUNDERTHEIMITATINGCONDITIONSITSTARTSWITHTHESTRUCTUREANDFUNCTIONSOFTHEFINALDRIVE，WHICHHELPSINTES“FYINGTHEIMPORTANCEOFNOISEORVIBRATIONANALYZINGTHENTHESOURCESANDPRINCIPIESOFTHENOISEOFFINALDRIVEGEARAREPRESENTEDANDTHECIOSERELATLONSHIPBETWEENNOISEANDVIBRATIONSIGNALISDISCUSSEDCORNPARETHEC01IECLINGANDANALYSISTECHNIQUESOFTHETWOFORMSOFSIGNAL，ITISSHOWNTHATTHEV1BRATIONANALYSISMETHODISMORESUITABLEANDSCIENTIFICINEVALUATINGTHEASSEMBLEQUALITYOFFINALDRIVETHEPAPERALSODESIGNSTHEVIBRATIONSIGNALANALYSISSYSTEMCOMPOSEDOFSENSORINTERFACEINSTALLATIONSANDTHECOMPUTERBECAUSEOFTHEPOWERFULCOMPILATORYCAPABILITYOFVISUALCSOFTWAREANDTHEFAVORABLECAPABILITVOFDATAPROCESSINGANDGRAPHICSDISPLAYINGOFMATLABSOFTWARE，THEMIXEDPROGRAMMLNGLSADOPTEDINORDERTOIMPLEMENTTHEFUNCTIONSOFTHEANALYSISSYSTEMBASEDONTHEBROADAPPLICATIONSOFWAVELETTHEORYINFAILUREDIAGNOSISTHEDAUBECHIESWAVELETFUNCTIONISEMPLOYEDINTHISSYSTEM，LHISPROPOSEDANALYSISMETHODISABOUTTEPLACETHETRADITIONALMETHODWLTNEXPERIENCEDOPERATORSINDETECTINGTHEQUALITYOFFINALDRIVETHESIMULATEDSIGNALISTAKENINTOTHESYSTEMANDANALYSEDUSINGTHEMETHODAFOREMENTIONEDASANEXAMPLEACCORDINGTOTHEANALYSISRESULTSTHECONCLUSIONSFOREVALUATINGTHEQUALITYOFFINALDRIVECANBEDRAWNMORERAPIDLYANDRATIONALLYKEYWORDSFINALPROGRAMOFMATLABDRIVE，VIBRATIONSIGNALANALYSISMETHOD，WAVELET，MIXEDANDVCII

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