ASTM A 709/A 709M-2006 桥梁用结构钢的标准规范

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【英文标准名称】:StandardSpecificationforStructuralSteelforBridges
【原文标准名称】:桥梁用结构钢的标准规范
【标准号】:ASTMA709/A709M-2006
【标准状态】:作废
【国别】:美国
【发布日期】:2006
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:桥;建筑;钢;结构钢
【英文主题词】:Bridges;Construction;Steels;Structuralsteels
【摘要】:
【中国标准分类号】:H44
【国际标准分类号】:77_140_10
【页数】:8P;A4
【正文语种】:英语


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Product Code:SAE ARP988
Title:Electrohydraulic Mechanical Feedback Servoactuators
Issuing Committee:A-6b1 Hydraulic Servo Actuation Committee
Scope: The recommendations contained herein are confined to the input and output characteristics of electrohydraulic mechanical feedback servoactuators. The information presented should be useful for standardizing the terminology and for specification of physical and performance parameters.The recommendations do not restrict nor attempt to define the internal design characteristics of servoactuators. As such, the material is equally applicable to servoactuators having different internal functioning, different ratings, different physical size, etc. In certain instances, standards for actuator design are recommended to increase interchangeability as, for example, pigtail color-coding and actuator polarity.The specifications contained herein should be adequate to describe electrohydraulic mechanical feedback servoactuators used for position control. Additional specifications may be necessary to define special requirements for specific control systems. Certain dynamic compensation methods will be discussed.
Rationale: The recommendations contained herein are confined to the input and output characteristics of electrohydraulic mechanical feedback servoactuators. The information presented should be useful for standardizing the terminology and for specification of physical and performance parameters.The recommendations do not restrict nor attempt to define the internal design characteristics of servoactuators. As such, the material is equally applicable to servoactuators having different internal functioning, different ratings, different physical size, etc. In certain instances, standards for actuator design are recommended to increase interchangeability as, for example, pigtail color-coding and actuator polarity.The specifications contained herein should be adequate to describe electrohydraulic mechanical feedback servoactuators used for position control. Additional specifications may be necessary to define special requirements for specific control systems. Certain dynamic compensation methods will be discussed.【英文标准名称】:Programmesforreliabilitygrowth
【原文标准名称】:可靠性增长大纲
【标准号】:IEC61014-2003
【标准状态】:现行
【国别】:国际
【发布日期】:2003-07
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC56
【标准类型】:()
【标准水平】:()
【中文主题词】:故障;缺陷与故障;程序;计算机软件;失效率;试验;电气元件;计算机硬件;可靠性增长;电子工程;电子设备及元件;电气工程;数学计算;可靠度;定义;试验条件
【英文主题词】:Computerhardware;Computersoftware;Defects;Definitions;Electricalcomponents;Electricalengineering;Electronicengineering;Electronicequipmentandcomponents;Failure;Failurerates;Hardware;Mathematicalcalculations;Programmes;Reliability;Reliabilitygrowth;Testing;Testingconditions
【摘要】:Specifiesrequirementsandgivesguidelinesfortheexposureandremovalofweaknessesinhardwareandsoftwareitemsforthepurposeofreliabilitygrowth.Applieswhentheproductspecificationcallsforareliabilitygrowthprogrammeofequipment(ele
【中国标准分类号】:L05
【国际标准分类号】:21_020;29_020
【页数】:96P.;A4
【正文语种】:英语