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WHB 2108-2000 武警毛料西式裙

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标准名称:武警毛料西式裙
发布日期:
实施日期:
首发日期:
作废日期:
出版社:中国标准出版社
出版日期:
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所属分类: 石油 石油产品 石油蜡 石油及相关技术 石蜡 沥青材料和其他石油产品:
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Product Code:SAE ARP4895
Title:Flight Control Actuators - Dynamic Seals, Collection of Duty Cycle Data
Issuing Committee:A-6a3 Flight Control Systems Committee
Scope:This SAE Aerospace Recommended Practice (ARP) provides an algorithm aimed to analyse flight control surface actuator movements with the objective to generate duty cycle data applicable to hydraulic actuator dynamic seals. This algorithm can be used to process digitally recorded actuator positions, generated either by pure simulation, or hardware-in-the-loop simulation, or flight test of full scale demonstrator of new aircraft, of new aircraft models in development, or of in-service aircraft, depending on what is available at different stages of the aircraft development and the purpose of the duty cycle investigation. This generated duty cycle data can be used as a basis for defining dynamic seal life requirements, dynamic seal life testing, or to assess the impact of control law or other changes to dynamic seal behavior.【英文标准名称】:StandardPracticeforDeterminationofDeadLoadsandLiveLoadsassociatedwithGreenRoofSystems
【原文标准名称】:测定新暴露顶板系统相关静负荷和动态负荷的标准实施规程
【标准号】:ASTME2397-2005
【标准状态】:现行
【国别】:
【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(US-ASTM)
【起草单位】:E60.01
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:deadload;greenroof;liveload;sustainability;waterretention
【摘要】:Thispracticeaddressesperformancecharacteristicsforgreenroofsystemswithrespecttothedeadloadandtransientwaterliveloadoftheentiresystem.Determiningtheseperformancecharacteristicsofgreenroofsystemsprovidesinformationtofacilitatetheassessmentofrelatedengineeringaspectsofthefacility.Suchaspectsmayincludestructuraldesignrequirements,mechanicalengineeringandthermaldesignrequirements,andfireandlifesafetyrequirements.Determiningtheseperformancecharacteristicsofgreenroofsystemsprovidesinformationtofacilitateassessmentoftheperformanceofonegreenroofsystemrelativetoanother.1.1Thispracticecoversastandardizedprocedureforpredictingthesystemweightofagreenroofsystem.1.2Theprocedureaddressestheloadsassociatedwithgreenroofsystems.Componentsthataretypicallyencounteredingreenroofsystemsinclude:membranes,non-absorptiveplasticsheetcomponents,metalliclayers,fabrics,geocompositedrainlayers,syntheticreinforcinglayers,cover/recoverboards,insulationmaterials,growthmedia,granulardrainagemedia,andplantmaterials.1.3Thisprocedurealsoaddressestheweightofthegreenroofsystemundertwoconditions:(1)weightunderdrainedconditionsafternewwateradditionsbyrainfallorirrigationhaveceased(thisincludestheweightofretainedwaterandcapturedwater),and(2)weightwhenrainfallorirrigationisactivelyoccurringandthedrainagelayeriscompletelyfilledwithwater.Thefirstconditionisconsideredthedeadloadofthegreenroofsystem.Thedifferenceinweightbetweenthefirstandsecondconditions,approximatedbytheweightoftransientwaterinthedrainagelayer,isconsideredaliveload.1.4Thisproceduredoesnotaddresspointorlineloadsassociatedwitharchitecturalelementsthatarenotessentialcomponentsofaparticulargreenroofsystem.Thesearchitecturalelementsmayincludepavement,walls,andmasonry,andsoforth.1.5Thisproceduredoesnotaddressliveloadsassociatedwithconstructionactivities.1.6Thisproceduredoesnotaddressliveloadsassociatedwithsnoworwind.1.7Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesandtodeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q17
【国际标准分类号】:65_020_20;91_060_20
【页数】:3P.;A4
【正文语种】: