SAE ARP1247 General Requirements for Aerospace Ground Support Equipment Motorized and Nonmotorized
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Product Code:SAE ARP1247
Title:General Requirements for Aerospace Ground Support Equipment Motorized and Nonmotorized
Issuing Committee:Age-2c Vehicle Maintenance And Aircraft Servicing Committee
Scope: This SAE Aerospace Recommended Practice (ARP) outlines the basic general design requirements for ground support equipment used in the civil air transport industry. It is intended to assist the airlines in standardizing requirements for various configurations of equipment. For procurement of equipment, sections of this document should be specified with due consideration of the functional and environmental requirements of the equipment, and to the relative cost of satisfying those requirements.
基本信息
| 标准名称： | 焊缝--工作位置--倾角和转角的定义 |
| 英文名称： | Welds-Working positions-Definitions of angles of slope and rotation |
| 中标分类： |
机械 >>
加工工艺 >>
焊接与切割 |
| ICS分类： |
|
| 发布部门： | 国家技术监督局 |
| 发布日期： | 1996-01-02 |
| 实施日期： | 1997-07-01 |
| 首发日期： | 1996-12-18 |
| 作废日期： | 1900-01-01 |
| 主管部门： | 国家标准化管理委员会 |
| 归口单位： | 全国焊接标准化技术委员会 |
| 起草单位： | 机械工业部哈尔滨焊接研究所 |
| 出版社： | 中国标准出版社 |
| 出版日期： | 1900-01-01 |
| 页数： | 平装16开， 页数：11， 字数：16千字 |
适用范围
本标准规定了工作位置，以利用与周围结构环境无关的倾角和转角确定焊缝在空间相对水平基准面(一般平行于车间地面)的位置。
前言
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目录
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引用标准
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所属分类： 机械 加工工艺 焊接与切割
【英文标准名称】:Industrialcommunicationnetworks-Fieldbusspecifications-Part4-19:Data-linklayerprotocolspecification-Type19elements(IEC61158-4-19:2007);EnglishversionEN61158-4-19:2008,onlyonCD-ROM
【原文标准名称】:工业通讯网络.现场总线规范.第4-19部分:数据联络层协议规范.19型元件.仅为CD-ROM
【标准号】:DINEN61158-4-19-2008
【标准状态】:作废
【国别】:德国
【发布日期】:2008-09
【实施或试行日期】:2008-09-01
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:总线系统;总线;电路网络;通信;控制设备;控制系统;控制工艺学;数据通信;数据链层;数据连接系统;数据处理;数据设备;数据传送;定义;数字的;数字数据;数字工程;数字信号;电子数据处理;电气工程;电子仪器;电子系统;英语;现场总线;制导系统;工业的;工业设施;信息交换;信息处理;信息技术;接口;接口(数据处理);链路层;开放系统互连;OSI;过程控制;过程控制工程;过程控制系统;协议规范;协议;信号;规范;规范(验收);传输媒质;传输协议
【英文主题词】:Bussystems;Buses(dataprocessing);Circuitnetworks;Communication;Controlequipment;Controlsystems;Controltechnology;Datacommunication;Datalinklayers;Datalinksystem;Dataprocessing;Dataservices;Datatransfer;Definition;Definitions;Digital;Digitaldata;Digitalengineering;Digitalsignals;EDP;Electricalengineering;Electronicinstruments;Electronicsystems;Englishlanguage;Fieldbus;Guidancesystems;Industrial;Industrialfacilities;Informationinterchange;Informationprocessing;Informationtechnology;Interfaces;Interfaces(dataprocessing);Linklayers;Opensystemsinterconnection;OSI;Processcontrol;Processcontrolengineering;Processcontrolsystems;Protocolspecification;Protocols;Signals;Specification;Specification(approval);Transmissionmedia;Transmissionprotocol
【摘要】:1.1GeneralThedata-linklayerprovidesbasictime-criticalmessagingcommunicationsbetweendevicesinanautomationenvironment.Thisprotocolprovidescommunicationopportunitiestoallparticipatingdata-linkentitiesa)inasynchronously-startingcyclicmanner,accordingtoapre-establishedschedule,andb)inacyclicoracyclicasynchronousmanner,asrequestedeachcyclebyeachofthosedata-linkentities.Thusthisprotocolcanbecharacterizedasonewhichprovidescyclicandacyclicaccessasynchronouslybutwithasynchronousrestartofeachcycle.1.2SpecificationsThisstandardspecifiesa)proceduresforthetimelytransferofdataandcontrolinformationfromonedata-linkuserentitytoapeeruserentity,andamongthedata-linkentitiesformingthedistributeddata-linkserviceprovider;b)thestructureofthefieldbusDLPDUsusedforthetransferofdataandcontrolinformationbytheprotocolofthisstandard,andtheirrepresentationasphysicalinterfacedataunits.1.3ProceduresTheproceduresaredefinedintermsofa)theinteractionsbetweenpeerDL-entities(DLEs)throughtheexchangeoffieldbusDLPDUs;b)theinteractionsbetweenaDL-service(DLS)providerandaDLS-userinthesamesystemthroughtheexchangeofDLSprimitives;c)theinteractionsbetweenaDLS-providerandaPh-serviceproviderinthesamesystemthroughtheexchangeofPh-serviceprimitives.1.4ApplicabilityTheseproceduresareapplicabletoinstancesofcommunicationbetweensystemswhichsupporttime-criticalcommunicationsserviceswithinthedata-linklayeroftheOSIorfieldbusreferencemodels,andwhichrequiretheabilitytointerconnectinanopensystemsinterconnectionenvironment.Profilesprovideasimplemulti-attributemeansofsummarizinganimplementation’scapabilities,andthusitsapplicabilitytovarioustime-criticalcommunicationsneeds.1.5ConformanceThisstandardalsospecifiesconformancerequirementsforsystemsimplementingtheseprocedures.Thispartofthisstandarddoesnotcontainteststodemonstratecompliancewithsuchrequirements.
【中国标准分类号】:N18;P76
【国际标准分类号】:35_100_20;35_160;35_240_50
【页数】:79P.;A4
【正文语种】:英语
