BS DD 225-1995 使用旋转盘上的摆动针测定液压液体的耐磨特性
作者:标准资料网 时间:2024-05-10 02:09:22 浏览:8160
来源:标准资料网
【英文标准名称】:Determinationofanti-wearpropertiesofhydraulicfluidsusingtheoscillatingpinonrotatingdiscmethod
【原文标准名称】:使用旋转盘上的摆动针测定液压液体的耐磨特性
【标准号】:BSDD225-1995
【标准状态】:作废
【国别】:英国
【发布日期】:1995-10-15
【实施或试行日期】:1995-10-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:润滑剂;液压液;振荡;性能试验;磨损试验;钢;试验条件;试验设备;工作流体;报告;润滑;旋转部件
【英文主题词】:reports;rotatingparts;testingconditions;weartests;lubricants;oscillations;workingfluids;lubrication;hydraulicfluids;testequipment;performancetesting;steels
【摘要】:
【中国标准分类号】:E39
【国际标准分类号】:75_120
【页数】:14P;A4
【正文语种】:英语
【英文标准名称】:Samplepreparation-Dispersingproceduresforpowdersinliquids
【原文标准名称】:样品制备.粉末在液体中的分散方法
【标准号】:ISO14887-2000
【标准状态】:现行
【国别】:国际
【发布日期】:2000-09
【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/TC24
【标准类型】:()
【标准水平】:()
【中文主题词】:粒度;粉末;定义;液体测量;分散;试样制备;分散力;试验;粒径分析;分散作用(化学)
【英文主题词】:Definitions;Dispersing;Dispersing(chemicaltechnology);Dispersion;Dispersionpower;Dispersions(chemical);Measurementofliquids;Methodsofdispersion;Metrology;Particlesize;Particlesizeanalysis;Powder;Specimenpreparation;Structuralcondition;Structuralstability;Suspensions(chemical);Testing
【摘要】:ThisInternationalStandardwasdevelopedtohelpparticlesizeanalystsmakegooddispersionsfrompowder/liquidcombinationswithwhichtheyarenotexperienced.Itprovidesproceduresfor—wettingapowderintoaliquid;—deagglomeratingthewettedclumps;—determiningifsolutioncompositioncanbeadjustedtopreventreagglomeration;—selectingdispersingagentstopreventreagglomeration;—evaluatingthestabilityofthedispersionagainstreagglomeration.ThisInternationalStandardisapplicabletoparticlesranginginsizefromapproximately0,05to100urn.Itprovidesaseriesofquestionsonthenatureofthepowderandliquidinvolved.Theanswersareusedwithchartsthatguidetheusertogenericdispersingagentsthatarelikelytobesuitablefordispersingthepowderintheliquid.ThisInternationalStandardappliesonlytothepreparationofsimple,dilutedispersions(lessthan1%byvolumesolids)forparticlesizeanalysis.Itdoesnotdealwiththeformulationofcomplexandcommercialmixtureshighlyloadedwithsolids,suchaspaints,inks,pharmaceuticals,herbicidesandcompositeplastics.
【中国标准分类号】:A28
【国际标准分类号】:19_120
【页数】:24P;A4
【正文语种】:英语
【英文标准名称】:Acousticsandvibration-Laboratorymeasurementofvibro-acoustictransferpropertiesofresilientelements-Part5:Drivingpointmethodfordeterminationofthelow-frequencytransferstiffnessofresilientsupportsfortranslatorymotion
【原文标准名称】:声学和振动.弹性元件振动声传导特性的实验室测量.第5部分:平移运动弹性支座低频传导刚度的传动点测定法
【标准号】:BSENISO10846-5-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2009-08-31
【实施或试行日期】:2009-08-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:声学测量;声学;结构产生噪声的衰减;定义(术语);动态的;发动机消音器;频率;频率范围;绝缘子;实验室测试;测量;测量技术;机械性能;听觉范围;弹性元件;噪声衰减;隔音材料;隔音;硬挺度;结构噪声;试验;传递;振动的传递;传输;振动;阻振器;振动衰减;振动工程;防振;振动特性
【英文主题词】:Acousticmeasurement;Acoustics;Dampingofstructure-bornenoise;Definitions;Dynamic;Enginesilencers;Frequencies;Frequencyranges;Insulators;Laboratorytesting;Measurement;Measuringtechniques;Mechanicalproperties;Rangeofaudibility;Resilientelements;Soundattenuation;Sounddeadening;Soundinsulation;Stiffness;Structure-bornenoise;Testing;Transfer;Transferofvibrations;Transmission;Vibration;Vibrationdampers;Vibrationdamping;Vibrationengineering;Vibrationinsulation;Vibrationalbehaviour
【摘要】:ThispartofISO10846specifiesadrivingpointmethodfordeterminingthelow-frequencytransferstiffnessfortranslationsofresilientsupports,underaspecifiedpreload.Themethodconcernsthelaboratorymeasurementofvibrationsandforcesontheinputsidewiththeoutputsideblocked,andiscalledthe“drivingpointmethod”.Thestiffnessresultingfrommeasuringtheinputdisplacement(velocity,acceleration)andinputforceisthedynamicdrivingpointstiffness.Onlyatlowfrequencies,wherethedrivingpointstiffnessandthetransferstiffnessareequal,canthismethodbeusedfordeterminationofthedynamictransferstiffness.NOTE1InISO10846-2,thedirectmethodformeasuringthedynamictransferstiffnessiscovered.Thedirectmethodcoversthedeterminationofthelow-frequencydynamictransferstiffnessanditcovers,inprinciple,awiderfrequencyrangethanthedrivingpointmethod.Nevertheless,thedrivingpointmethodiscoveredintheISO10846seriesofinternationalstandardsaswell.Itisconsideredasavaluableoptionforownersof(oftenexpensive)testrigsfordrivingpointstiffnessmeasurements,toextendtheuseoftheserigswiththedeterminationoflow-frequencydynamictransferstiffness.Themethodisapplicabletotestelementswithparallelflanges(seeFigure1).Resilientelements,whicharethesubjectofthispartofISO10846,arethosewhichareusedtoreducea)thetransmissionofvibrationinthelowerpartoftheaudiblefrequencyrange(typically20Hzto200Hz)toastructurewhichmay,forexample,radiateunwantedfluid-bornesound(airborne,waterborneorothers),andb)thetransmissionoflow-frequencyvibrations(typically1Hzto80Hz)whichmay,forexample,actuponhumansubjectsorcausedamagetostructuresofanysizewhenvibrationistoosevere.NOTE2Inpractice,thesizeofavailabletestrig(s)determinesrestrictionsforverysmallandforverylargeresilientsupports.NOTE3Samplesofcontinuoussupportsofstripsandmatsareincludedinthemethod.WhetherornotthesampledescribesthebehaviourofthecomplexsystemsufficientlyistheresponsibilityoftheuserofthispartofISO10846.MeasurementsfortranslationsnormalandtransversetotheflangesarecoveredinthispartofISO10846.Themethodcoversthefrequencyrangefromf1=1HztotheupperlimitingfrequencyfUL.Typically50HzufULu200Hz.ThedataobtainedaccordingtothemethodspecifiedinthispartofISO10846canbeusedforthefollowing:-productinformationprovidedbymanufacturersandsuppliers;-informationduringproductdevelopment;-qualitycontrol,and-calculationofthetransferofvibrationthroughisolators.
【中国标准分类号】:Z32
【国际标准分类号】:17_140_01;17_160
【页数】:36P.;A4
【正文语种】:英语
