ISO/TS 13725-2001 液压传动缸筒压曲临界负荷测定方法

作者:标准资料网 时间:2024-04-29 04:33:39   浏览:8236   来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:Hydraulicfluidpower-Cylinders-Methodfordeterminingthebucklingload
【原文标准名称】:液压传动缸筒压曲临界负荷测定方法
【标准号】:ISO/TS13725-2001
【标准状态】:作废
【国别】:国际
【发布日期】:2001-08
【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/TC131
【标准类型】:()
【标准水平】:()
【中文主题词】:筒;抗弯强度;液压缸;液压传动系统;试验;流程图;流体技术;液压传动;液压设备
【英文主题词】:Bucklingstrength;Cylinders;Flowcharts;Fluidtechnologies;Hydrauliccylinders;Hydraulicequipment;Hydraulicfluidpower;Hydraulictransmissionsystems;Testing;Tests
【摘要】:ThisTechnicalSpecificationspecifiesamethodforthedeterminationofbucklingloadwhicha)takesintoaccountthecompletegeometryofthefluidpowercylinder,meaningitdoesnottreatthefluidpowercylindersasanequivalentbar,b)canbeextendedtobeusedforalltypesofcylindermountingandrodendconnection,c)includesafactorofsafety,k,tobedeterminedbythepersonperformingthecalculationsandreportedwiththeresultsofthecalculations,d)takesintoaccountapossibleoff-axisloading,e)takesintoaccounttheweightofthefluidpowercylinder,meaningitdoesnotneglectalltransverseloadsappliedonthefluidpowercylinder,f)cantakeintoaccountamisalignment,butonlyifitissituatedintheplaneofcylinderselfweight,andg)iseasytotranscribeundertheformofasimplecomputerprogram.Theresultsgivenbythismethodhavebeencomparedfavourablytothosegivenbyseveralmethodsalreadyusedintheindustryforfluidpowercylindersintherange25mmto200mmwith12mmto140mmpistonrods.Accordingly,larger-orsmaller-sizedcylinderdesignsshouldbeapproachedwithcautionwhenusingthismethod.NOTEThismethodisbasedmainlyonoriginalworkbyFredHoblit(Criticalbucklingloadforhydraulicactuatingcylinders,ProductEngineering,July1950).
【中国标准分类号】:J20
【国际标准分类号】:23_100_20
【页数】:39P.;A4
【正文语种】:英语


下载地址: 点击此处下载
【英文标准名称】:Respiratorytherapyequipment-Airentrainmentdevices
【原文标准名称】:呼吸疗法设备.加气处理装置
【标准号】:BSEN13544-3-2001
【标准状态】:作废
【国别】:英国
【发布日期】:2001-07-15
【实施或试行日期】:2001-07-15
【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】:医疗设备;氧;呼吸装置;空气控制装置;性能;吸入疗法设备;安全措施;浓度(化学);色码;呼吸器;作标记;识别方法;医用呼吸器
【英文主题词】:Airinlet;Breathingapparatus;Breathingequipment;Components;Connectors;Definition;Definitions;Design;Efficiency;Inhaledair;Marking;Medicalbreathingapparatus;Medicalequipment;Medicalsciences;Medicaltechnology;Orifices;Oxygen;Oxygenconcentration;Oxygencontent;Oxygenline;Oxygensupply;Oxygenuptake;Oxygenation;Respirators;Safety;Safetyrequirements;Specification(approval);Testing;Therapyequipment;Userinformation
【摘要】:ThispartofthisEuropeanStandardspecifiesminimumperformanceandsafetyrequirementsforairentrainmentdevicesusedfordeliveryofadesignatedoxygenconcentrationtopatients.Itgivesatestmethodtochecktheoxygenconcentrationintheair/oxygenmixturegeneratedbytheairentrainmentdevice.Italsospecifiesmarkingrequirementsandgivesanoptionalsystemofcolourcodingtoassisttheusertoidentifythedesignatedoxygenconcentration.Thisstandarddoesnotcoverairentrainmentdeviceswhichareintegralwithmedicaldevicesspecifiedinotherstandardse.g.emergencylungventilators,humidifiers,nebulizers,etc.
【中国标准分类号】:C45
【国际标准分类号】:11_040_10
【页数】:18P.;A4
【正文语种】:英语


【英文标准名称】:Electroacoustics.Hearingaids.Electromagneticcompatibility(EMC)
【原文标准名称】:电声学.助听器.电磁兼容性(EMC)
【标准号】:BSEN60118-13-2011
【标准状态】:现行
【国别】:英国
【发布日期】:2011-08-31
【实施或试行日期】:2011-08-31
【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】:
【英文主题词】:Acoustics;Definitions;Electricalengineering;Electroacoustics;Electromagneticcompatibility;EMC;Features;Fieldstrength(electric);Frequencies;Frequencyranges;Hearingaids;Highfrequencies;Immunity;Interferencerejections;Limits(mathematics);Measuringincertainity;Measuringtechniques;Noisesources;Performance;Telephones;Testsignals;Testing;Transmissioncharacteristics
【摘要】:ThispartofIEC60118inprinciplecoversallrelevantEMCphenomenaforhearingaids.EMCphenomena,suchasRFemissionandelectrostaticdischarge,arenotcurrentlyknowntobeasignificantprobleminconnectionwithhearingaidsandarethereforenotdealtwith.Basedonnewknowledge,theycouldbeconsideredinconnectionwithfuturerevisionsorextensionsofthisstandard.Hearingaidimmunitytohighfrequencyelectromagneticfieldsoriginatingfromdigitalwirelessdevicesoperatinginthefrequencyranges0,8GHzto0,96GHzand1,4GHzto2,48GHziscurrentlyidentifiedastheonlyrelevantEMCphenomenonregardinghearingaids.FutureeditionsofthispartofIEC60118mayaddtestsforotherfrequencybands,astheycomeintomorecommonuse.IEC61000-4-3isthebasisforrelevantEMCteststobeconductedonhearingaids.MeasurementmethodsandacceptancelevelsaredescribedinthispartofIEC60118.ForthepurposeofthispartofIEC60118,twoimmunityclassesofhearingaidsaredefined(see3.1)relatedtotheiruse."Bystandercompatible"ensuresthatahearingaidisusableinenvironmentswheredigitalwirelessdevicesareinoperationintheproximityofthehearingaidwearer."Usercompatible"hearingaidsensuresthatahearingaidisusablewhenthewearerisusingadigitalwirelessdeviceatthewearer’sownaidedear.Measurementmethodsforhearingaidswithnon-acousticoutputsandforhearingaidsconnectedtootherequipmentbycablesarenotgiveninthisstandard.
【中国标准分类号】:L31
【国际标准分类号】:17_140_50;33_100_20
【页数】:26P.;A4
【正文语种】:英语