求热能与动力工程专业毕业论文的摘要英文翻译
Overthelast20years,mainlyduetothevibrationcausedbythefatalaccidentsoccurredoneafteranother,inflictinghugeeconomiclosses.Furthermore,thevibrationisstillnewtolargeunitsshippedimpossiblegrid,thenormaloperationforthemainthecrewduringnormaloperations,continuousvibrationproblemsaffectingthenormalproduction,Unitsoftenreducedloadandoperationofthesick,andeventheunitwasforcedtostand,theseincidentsnotuncommon.ThesystembasedonLabVIEWvirtualinstrumentsoftwareplatformforturbinevibrationsignalwindowread,andspectralanalysisandcorrelationanalysis.LabVIEWvirtualinstrumentisacommoncoreofcomputerhardwareplatform,definedbytheuser,withvirtualfrontpanel,thetestfunctiontestsoftwarefromacomputerequipmentsystem.Thesystemcompletedtheturbinevibrationsignalread,thesignalrectangularwindowHanning,Hammingwindowwindowchoice,andthenthesignalamplitudespectrum,powerspectrumandphasespectrumanalysisandcorrelationanalysis,andoperatingwithgraphicsanddisplayinterface.Theresultofrunningthesystemprovedthatthesystemcanaccomplishthesignalread,andthreewindowfunctionandthedynamicanalysisofthevariousoptionsandgraphicaldisplaywiththeresults.
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