【英文标准名称】:Mechanicalvibration-Evaluationofmachinevibrationbymeasurementsonnon-rotatingparts-Part4:Gasturbinesetswithfluid-filmbearings
【原文标准名称】:机械振动.通过在非旋转部件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】:ISO10816-4-2009
【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;验收试验;轴承;组件;交货条件;评估;燃气轮机;发电机组;极限(数学);机械振动;机械;测量;测量技术;机械试验;性能;滑动轴承;静止的;蒸汽轮机;汽轮机;汽轮(发电)机组;振动;振动工程;振动测量;振动强度;振动试验
【英文主题词】:Acceptancespecification;Acceptancetests;Bearings;Components;Deliveryconditions;Evaluations;Gasturbines;Generatingsets;Limits(mathematics);Machinevibration;Machines;Measurement;Measuringtechniques;Mechanicaltesting;Performance;Plainbearings;Stationary;Steamengines;Steamturbines;Steamturbosets;Vibration;Vibrationengineering;Vibrationmeasurement;Vibrationseverity;Vibrationtests
【摘要】:ThispartofISO10816establishesprovisionsforevaluatingtheseverityofin-situ,broad-bandvibrationmeasuredradial(i.e.transverse)totheshaftaxisonallmainbearinghousingsorpedestalsandintheaxialdirectiononthrustbearings.Theseareintermsof:-vibrationundernormalsteady-stateoperatingconditions;-vibrationduringother(non-steady-state)conditionswhentransientchangesaretakingplace,includingrunuporrundown,initialloadingandloadchanges;-changesinvibrationwhichcanoccurduringnormalsteady-stateoperation.ThispartofISO10816isapplicabletoheavy-dutygasturbinesetsusedinelectricalandmechanicaldriveapplications,withfluid-filmbearings,outputsgreaterthan3MWandanoperatingspeedrangeunderloadbetween3000r/minand30000r/min.Thisincludesgasturbinescoupledtootherrotatingmachineryeitherdirectlyorthroughagearbox.Insomecases,thispartofISO10816isnotapplicabletotheevaluationofthevibrationofthecoupledequipment(seethelistofexclusionsinthisclause).EXAMPLEForsingle-shaftcombined-cyclepowerunitsinwhichagasturbineiscoupledtoasteamturbineand/orgenerator,theevaluationofthegasturbinevibrationisaccordingtothispartofISO10816,butthatofthesteamturbineandgeneratorisaccordingtoISO10816-2orISO10816-3.ThispartofISO10816isnotapplicabletothefollowing:a)aero-derivativegasturbines(includinggasturbineswithdynamicpropertiessimilartothoseofaeroderivatives);NOTEISO3977-3definesaero-derivativesasaircraftpropulsiongasgeneratorsadaptedtodrivemechanical,electricalormarinepropulsionequipment.Largedifferencesexistbetweenheavy-dutyandaero-derivativegasturbines,forexampleincasingflexibility,bearingdesign,rotortostatormassratioandmountingstructure.Differentcriteriathereforeapplyforthesetwoturbinetypes.b)gasturbineswithoutputslessthanorequalto3MW(seeISO10816-3);c)gasturbinedrivenpumps(seeISO10816-7);d)coupledsteamturbinesand/orgeneratorswithoutputslessthanorequalto50MW(seeISO10816-3);e)coupledsteamturbinesand/orgeneratorswithoutputsgreaterthan50MW(seeISO10816-2);f)synchronizingclutcheswhichcouplethegasturbinetoasteamturbineorgenerator(seeISO10816-2);g)coupledcompressors(seeISO10816-3);h)gearboxvibration(seethisclause);i)rollingelementbearingvibration.ThispartofISO10816isapplicabletootherdrivenequipmentnotincludedinthislistofexclusions.ThispartofISO10816isapplicabletomachineswhichcanbecoupledtoagearbox,butdoesnotaddresstheevaluationofthevibrationconditionofthosegears.SpecialisttechniquesarerequiredforevaluatingthevibrationconditionofgearswhichareoutsidethescopeofthispartofISO10816.Thenumericalvaluesspecifiedarenotintendedtoserveastheonlybasisforjudgingtheseverityofvibration.Forgasturbinesets,itisalsocommontojudgethevibrationbasedonmeasurementstakenontherotatingshafts.Forsuchvibrationmeasurementrequirements,seeISO7919-1andISO7919-4.
【中国标准分类号】:J04;Z32
【国际标准分类号】:17_160;27_040
【页数】:22P.;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforMolecularWeightAveragesandMolecularWeightDistributionofPolystyrenebyHighPerformanceSize-ExclusionChromatography
【原文标准名称】:用高效粒度排除色谱法测定聚苯乙烯平均分子量和分子量分布的标准试验方法
【标准号】:ASTMD5296-2005
【标准状态】:现行
【国别】:美国
【发布日期】:2005
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;塑料;聚苯乙烯
【英文主题词】:polystyrene;plastics;testing
【摘要】:
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:13P;A4
【正文语种】:英语