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【英文标准名称】:TestMethodforTensilePropertiesofPlastics(Metric)(08.01)
【原文标准名称】:塑料拉伸性能的试验方法(米制)
【标准号】:ANSI/ASTMD638M-1991
【标准状态】:作废
【国别】:美国
【发布日期】:1991
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:塑料;特性;试验
【英文主题词】:testing;properties;plastics
【摘要】:
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:
【正文语种】:英语


【英文标准名称】:Mechanicalvibration-Evaluationofmachinevibrationbymeasurementsonnon-rotatingparts-Part4:Gasturbinedrivensetsexcludingaircraftderivatives
【原文标准名称】:机械振动在非旋转部件上测量和评定机器振动第4部分:不包括航空器类的燃气轮驱动装置
【标准号】:ISO10816-4-1998
【标准状态】:作废
【国别】:国际
【发布日期】:1998-07
【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】:机器;静止的;振动测量;振动;固定的;测量技术;组件;验收试验;汽轮机;燃气轮机;振动强度;蒸汽发动机;振动试验;发电机组;振动工程;汽轮(发电)机组;机械试验;性能;元部件;测量;评定
【英文主题词】:Acceptancetests;Components;Evaluations;Gasturbines;Generatingsets;Machinevibration;Machines;Measurement;Measuringtechniques;Mechanicalengineering;Mechanicaltesting;Performance;Stationary;Steamengines;Steamturbines;Steamturbosets;Vibration;Vibrationengineering;Vibrationmeasurement;Vibrationseverity;Vibrationtests
【摘要】:ThispartofISO10816givesspecificguidanceforassessingtheseverityofvibrationmeasuredonthebearinghousingsorpedestalsofgasturbinedrivensets.ThevibrationcriteriaprovidedinthispartofISO10816applytoheavy-dutygasturbinesets.Aircraftderivativegasturbines(includinggasturbineswithdynamicpropertiessimilartothoseofaircraftderivatives)areexcludedfromthispartofISO10816.Largedifferencesexistbetweenthesetwoturbinetypesin,forexample,casingflexibility,bearingdesign,rotortostatorweightratioandmountingstructure.Itisthereforenecessarytoestablishseparatecriteriaforthesetwoturbinetypes.ThispartofISO10816isapplicableonlytoheavy-dutygasturbinesusedinelectricalandmechanicaldriveapplicationscoveringthepowerrangeabove3MWandaspeedrangeunderloadbetween3000r/minand20000r/min.Thisincludesgasturbinesdirectlycoupledtootherprimemoverssuchassteamturbines,buttheevaluationofthesteamturbinevibrationisnotdealtwithinthispartofISO10816(seethefollowingexclusionlist).Italsoincludesanydrivenequipmentnotincludedintheexclusionlistbelow.ThefollowingareexcludedfromthispartofISO10816:—gasturbineswithpoweroutputslessthanorequal3MW(seeISO10816-3);—gasturbinedrivenpumps(seeISO10816-3);—coupledsteamturbinesandgeneratorswithoutputslessthanorequal50MW(seeISO10816-3);—coupledsteamturbinesandgeneratorswithoutputsgreaterthan50MW(seeISO10816-2);—coupledcompressors(seeISO10816-3);—gearboxvibration(seebelow).ThecriteriaofthispartofISO10816areapplicabletothevibrationmeasuredonthebearinghousingsorpedestalsofgasturbinesanddrivenequipmentusingfluid-filmbearings.Theyassumethatthemeasurementsarein-situbroad-bandvaluestakenundernormalsteady-stateoperatingconditions.ThispartofISO10816encompassesmachineswhichmayhavegearsorrollingelementbearingsbutdoesnotaddresstheevaluationoftheconditionofthosegearsorbearings.NOTEGearvibrationmaybeincludedinafutureeditionofthispartofISO10816.VibrationofgearsispresentlyaddressedinISO8579-2.
【中国标准分类号】:J04
【国际标准分类号】:17_160;27_040
【页数】:9P.;A4
【正文语种】:英语