ISO 7919-4-2009 机械振动.通过在旋转轴上的测量评价机械振动.第4部分:带有流体膜轴承的燃气轮机组

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【英文标准名称】:Mechanicalvibration-Evaluationofmachinevibrationbymeasurementsonrotatingshafts-Part4:Gasturbinesetswithfluid-filmbearings
【原文标准名称】:机械振动.通过在旋转轴上的测量评价机械振动.第4部分:带有流体膜轴承的燃气轮机组
【标准号】:ISO7919-4-2009
【标准状态】:现行
【国别】:国际
【发布日期】:2009-10
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC108
【标准类型】:()
【标准水平】:()
【中文主题词】:验收规范;声学;交货条件;估计;评估;燃气机;燃气轮机;发电机组;机器;测量;测量技术;滑动轴承;旋转式发动机;轴(旋转);蒸汽轮机;汽轮(发电)机组;试验;涡轮机;振动;振动工程;振动测量;振动试验
【英文主题词】:Acceptancespecification;Acoustics;Deliveryconditions;Estimation;Evaluations;Gasengines;Gasturbines;Generatingsets;Machines;Measurement;Measuringtechniques;Plainbearings;Rotaryengines;Shafts(rotating);Steamturbines;Steamturbosets;Testing;Turbines;Vibration;Vibrationengineering;Vibrationmeasurement;Vibrationtests
【摘要】:ThispartofISO7919establishesprovisionsforevaluatingtheseverityofin-situ,broad-bandshaftvibrationmeasuredradial(i.e.transverse)totheshaftaxisat,orcloseto,themainbearings.Theseareintermsof:-vibrationundernormalsteady-stateoperatingconditions;-vibrationduringother(non-steady-state)conditionswhentransientchangesaretakingplace,includingrunuporrundown,initialloadingandloadchanges;-changesinvibrationwhichcanoccurduringnormalsteady-stateoperation.ThispartofISO7919isapplicabletoheavy-dutygasturbinesetsusedinelectricalandmechanicaldriveapplications,withfluid-filmbearings,outputsgreaterthan3MWandanoperatingspeedrangeunderloadbetween3000r/minand30000r/min.Thisincludesgasturbinescoupledtootherrotatingmachineryeitherdirectlyorthroughagearbox.Insomecases,thispartofISO7919isnotapplicabletotheevaluationofthevibrationofthecoupledequipment(seethelistofexclusionsinthisclause).EXAMPLEForsingle-shaftcombined-cyclepowerunitsinwhichagasturbineiscoupledtoasteamturbineand/orgenerator,theevaluationofthegasturbinevibrationisaccordingtothispartofISO7919,butthatofthesteamturbineandgeneratorisaccordingtoISO7919-2orISO7919-3.ThispartofISO7919isnotapplicabletothefollowing:a)aero-derivativegasturbines(includinggasturbineswithdynamicpropertiessimilartothoseofaeroderivatives);NOTEISO3977-3definesaero-derivativesasaircraftpropulsiongasgeneratorsadaptedtodrivemechanical,electricalormarinepropulsionequipment.Largedifferencesexistbetweenheavy-dutyandaero-derivativegasturbines,forexampleincasingflexibility,bearingdesign,rotortostatormassratioandmountingstructure.Differentcriteriathereforeapplyforthesetwoturbinetypes.b)gasturbineswithoutputslessthanorequalto3MW(seeISO7919-3);c)gasturbinedrivenpumps(seeISO7919-3);d)coupledsteamturbinesand/orgeneratorswithoutputslessthanorequalto50MW(seeISO7919-3);e)coupledsteamturbinesand/orgeneratorswithoutputsgreaterthan50MW(seeISO7919-2);f)synchronizingclutcheswhichcouplethegasturbinetoasteamturbineorgenerator(seeISO7919-2);g)coupledcompressors(seeISO7919-3);h)gearboxvibration(seethisclause);i)rollingelementbearingvibration.ThispartofISO7919isapplicabletootherdrivenequipmentnotincludedinthislistofexclusions.ThispartofISO7919isapplicabletomachineswhichcanbecoupledtoagearbox,butdoesnotaddresstheevaluationofthevibrationconditionofthosegears.SpecialisttechniquesarerequiredforevaluatingthevibrationconditionofgearswhichareoutsidethescopeofthispartofISO7919.Thenumericalvaluesspecifiedarenotintendedtoserveastheonlybasisforjudgingtheseverityofvibration.Forgasturbinesets,itisalsocommontojudgethevibrationbasedonmeasurementstakenonnon-rotatingparts.Forsuchvibrationmeasurementrequirements,seeISO10816-1andISO10816-4.
【中国标准分类号】:J04;Z32
【国际标准分类号】:17_160;27_040
【页数】:20P.;A4
【正文语种】:英语