第1页共22页编号:时间:2021年x月x日书山有路勤为径,学海无涯苦作舟页码:第1页共22页英文翻译Chapter4portablerotatingmachineryvibrationmonitoringsystemdesignWiththemodernizationofenterprisedevicemanagement,howtomakeequipment,continuous,reliable,safeandefficientoperationtomeettherequirementsofmodernenterprisemanagement,isparticularlyimportant.Therotatingmechanicalequipmentduringoperationofthevibrationsignalsgeneratedalotofhiddeninformationthatcanhelppeopletocorrectlyjudgethevarioustypesofrotatingmachineryduringoperationofthestate.Theoryofvibrationanalysisandconditionmonitoringtechnologyisinseparableorganisms.Basedonvibrationanalysisofrotatingmachineryconditionmonitoringsystemistoruntheprocessofrotatingmachineryvibrationinformationgeneratedbythecoretodeterminerotatingmachineryisrunningortheanomalyoccurred.4.1ThesystemworksThesystemworks:Theacquisitionrotatingmachineryvibrationsensorequipmentrunningintheprocessofthevibrationsignals,afterfilteringhardwarecircuitamplification,A/Dconversion,andthenuploadthedatathroughtheUSBinterfacetoacomputerforprocessing;hostcomputercanbethedatacollectorsamplerate,channelselectionandsothecorrespondingparametersettings;throughtheapplicationofthesoftwareforsignalanalysisandprocessingandanalysisofpaint-relatedwaveforms;andthen,throughtherelevantwaveformanalysisandspectrum第2页共22页第1页共22页编号:时间:2021年x月x日书山有路勤为径,学海无涯苦作舟页码:第2页共22页analysistodeterminethehealthstatusofmachineryandequipment.4.2SystemStructureDiagramDesignconceptofthissystemisthetop-downdesign,thefirstdevicetoachievetheoverallplanningfunction,andthendividethetotalworkfunctiontothehardwareandsoftwaresub-modulestorealizethesystemoveralldesignblockdiagramshowninFigure1.4.3VibrationspeedsensorselectionVibrationsensor(Sensor)isacollectioncanbegeneratedbyrotatingmachineryvibrationsignals,accordingtoacertainlawofvibrationsignalsareconvertedtotheircorrespondingphysicalquantityorsignalandanotheroutputdevice,istoachievelarge-scalerotatingmachineryconditionmonitoringofanimportantlinkIfthereisnovibrationsensortotheoriginalvibrationsignalsaccuratelycaptureandconversion,rotatingmachineryconditionmonitoringcannotbeachieved.Bycollectingvibrationsignalofadifferentnaturecanbeclassifiedasfollows:acceleration,velocity,displacementandsoon.Vibrationsensorselectionmusttakeintoaccountsensorperformancerequirements;sensorstaticanddynamiccharacteristics.Vibrationsensorstaticcharacteristicsofthemainparametersare:linearity,resolutionandsensitivity.Thedynamiccharacteristicsofvibrationsensorsusedittorespondtocertaincriteriatorepresenttheinputsignal.Astherotatingmachineryvibrationsignalsoutputsinusoidalsignal,sothedynamiccharacteristicsofsensorsusedtoindicatethefrequencyresponse.Rotatingmachineryvibrationtest第3页共22页第2页共22页编号:时间:2021年x月x日书山有路勤为径,学海无涯苦作舟页码:第3页共22页commonlyusedtypesofsensorsarepiezoelectricsensorsandinertialratesensors.Piezoelectricsensorsusedfornon-rotatingcomponentsoftheaccelerationmeasurement.Itischaracterizedbytheuseofawidefrequencyrange,usually0.2~10kHz,therefore,itissuitableforhigh-speedrotatingmachineryvibrationtests.Thequalityofpiezoelectricaccelerationsensorissmall,easytoinstallinmechanicalequipment.However,piezoelectricsensorsarehighimpedance,weaksignalsensor,measuringthesitevulnerabletoelectromagnetic,acousticandthermalai...