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SAE AIR4253 Description of Actuation Systems for Aircraft With Fly-By-Wire Flight Control Systems

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Product Code:SAE AIR4253
Title:Description of Actuation Systems for Aircraft With Fly-By-Wire Flight Control Systems
Issuing Committee:A-6a3 Flight Control Systems Committee
Scope: This information report (AIR) provides design information of various contemporary aircraft fly-by-wire flight control actuation systems that may be useful in the design of future actuation systems for similar applications. This AIR provides a description of representative state-of-the-art, fly-by-wire (FBW) actuation systems used in flight control systems of manned aircraft. It presents the basic characteristics, hardware descriptions, redundancy concepts, functional schematics, and discussions of the servo controls, failure monitoring, and fault tolerance. All existing FBW actuation systems are not described herein; however, those most representing the latest designs are included. While this AIR is intended as a reference source of information for future aircraft actuation system designs, the exclusion or omission of any other appropriate actuation system or subsystem should not limit consideration of their use on future aircraft.
Rationale: This information report (AIR) provides design information of various contemporary aircraft fly-by-wire flight control actuation systems that may be useful in the design of future actuation systems for similar applications. This AIR provides a description of representative state-of-the-art, fly-by-wire (FBW) actuation systems used in flight control systems of manned aircraft. It presents the basic characteristics, hardware descriptions, redundancy concepts, functional schematics, and discussions of the servo controls, failure monitoring, and fault tolerance. All existing FBW actuation systems are not described herein; however, those most representing the latest designs are included. While this AIR is intended as a reference source of information for future aircraft actuation system designs, the exclusion or omission of any other appropriate actuation system or subsystem should not limit consideration of their use on future aircraft.
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【英文标准名称】:SiliconinPetroleumLiquidsbyICP-OES
【原文标准名称】:用电感耦合等离子体发射光谱分析法(ICP-OES)测定石油液体中硅含量
【标准号】:ASTMUOP796-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:
【标准类型】:(UOP)
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Thismethodisforthedeterminationofsilicon(Si)inpetroleumliquidsusinganInductivelyCoupledPlasma-OpticalEmissionSpectrometer(ICP-OES).Silicon(Si)istypicallypresentinpetroleumliquidsassolubleorganicsilicones,butthemethodwillalsodetectotherformsofsilicon(Si)suchasthegenerallyinsolubleinorganicsilicon(Si)saltsandsilica.Themethodisprimarilyusedtoanalyzereformerchargestocksforsilicones,butmayalsobeusedforrefinerychargestocksasheavyasvacuumgasoil(VGO).Thelowerlimitofquantitionisapproximately1.0mg/kg(mass-ppm)assilicon(Si).Standardaddition,asdescribedintheAppendix,maybeusedtoverifytheresults.
【中国标准分类号】:
【国际标准分类号】:
【页数】:10P.;A4
【正文语种】:英语


【英文标准名称】:Steeltubes.Structuralweldedtubes,circular,square,rectangularoroval,inferriticorausteniticstainlesssteels.Dimensions.Technicaldeliveryconditions.
【原文标准名称】:钢管.不锈钢、铁素体和奥氏体钢制圆形、正方形、矩形或椭圆形建筑用焊接钢管.尺寸.交货技术条件
【标准号】:NFA49-647-1979
【标准状态】:现行
【国别】:法国
【发布日期】:1979-10
【实施或试行日期】:1979-10-01
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:管;钢管;质量(物质);交付条件;铁素体钢;尺寸;焊接管;交付;钢;作标记;消费者与供货者的关系;奥氏体钢;不锈钢;招标;偿付凭据;尺寸公差;用户与供货者关系;光面管;货物保管条件;焊接;线密度;化学成份;设备规范;产品规范
【英文主题词】:
【摘要】:
【中国标准分类号】:H48
【国际标准分类号】:77_140_75
【页数】:11P;A4
【正文语种】:其他