MIL-HDBK-87244
时间:2024-05-17 02:04:19 来源: 标准资料网 作者：标准资料网 阅读：9804
MIL-HDBK-87244, MILITARY HANDBOOK: AVIONICS/ELECTRONICS INTEGRITY (30 JAN 1995) [SUPERSEDING MIL-A-87244A]., This handbook provides rationale, guidance, and lessons learned for specific avionics/electronics applications and parallels the sample performance specification in Appendix C. This handbook describes the Avionics/Electronic Integrity Process (AVIP) and associated performance requirements which should be tailored and incorporated into appropriate contractual documents and the integrated engineering and manufacturing process to achieve integrity of airborne and ground-based electronics. The suggested performance requirements assist in the development 01 program performance and verification requirements which encompass equipment life, life-cycle uses, environments and supportability. The AVIP process enhances systems engineering . In the design and production of affordable and reliable avionic/electronics. Previous versions have been successfully tailored and applied by large and small acquisition programs.
【英文标准名称】:Plastics-DeterminationofIzodimpactstrength
【原文标准名称】:塑料.伊兆特(Izod)冲击强度测定
【标准号】:BSENISO180-2001
【标准状态】:现行
【国别】:英国
【发布日期】:2001-03-15
【实施或试行日期】:2001-03-15
【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】:热塑性聚合物;脆性;塑料和橡胶技术;材料的机械性能;韧性;试样制备;纤维;物理试验;塑料;伊兆特冲击试验;热固性聚合物;尺寸;划痕;增强的材料;冲击试验
【英文主题词】:Brittleness;Compositematerials;Definition;Definitions;Determination;Impactresistance;Impactstrength;Instruments;Izod;Izodimpacttests;Materials;Materialstesting;Plastics;Polymers;Specimenpreparation;Testequipment;Testspecimens;Testing;Thermoplasticpolymers;Thermosettingpolymers;Toughness
【摘要】:1ThisInternationalStandardspecifiesamethodfordeterminingthelzodimpactstrengthofplasticsunderdefinedconditions.Anumberofdifferenttypesofspecimenandtestconfigurationsaredefined.Differenttestparametersarespecifiedaccordingtothetypeofmaterial,thetypeoftestspecimenandthetypeofnotch.2Themethodisusedtoinvestigatethebehaviourofspecifiedtypesofspecimenundertheimpactconditionsdefinedandforestimatingthebrittlenessortoughnessofspecimenswithinthelimitationsinherentinthetestconditions.3Themethodissuitableforusewiththefollowingrangeofmaterials:—rigidthermoplasticmouldingandextrusionmaterials,includingfilledandreinforcedcompoundsinadditiontounfilledtypes;rigidthermoplasticssheets;—rigidthermosettingmouldingmaterials,includingfilledandreinforcedcompounds;rigidthermosettingsheets,includinglaminates;—fibre-reinforcedthermosettingandthermoplasticcompositesincorporatingunidirectionalornon-unidirectionalreinforcementssuchasmat,wovenfabrics,wovenrovings,choppedstrands,combinationandhybridreinforcements,rovingsandmilledfibresandsheetmadefrompre-impregnatedmaterials(prepregs);—thermotropicliquid-crystalpolymers.4Themethodisnotnormallysuitableforusewithrigidcellularmaterialsandsandwichstructurescontainingcellularmaterial.Also,notchedspecimensarenotnormallyusedforlong-fibre-reinforcedcompositesorthermotropicliquid-crystalpolymers.5Themethodissuitedtotheuseofspecimenswhichmaybeeithermouldedtothechosendimensions,machinedfromthecentralportionofastandardmultipurposetestspecimen(seeISO3167)ormachinedfromfinishedorsemifinishedproductssuchasmouldings,laminatesandextrudedorcastsheet.6Themethodspecifiespreferreddimensionsforthetestspecimen.Testswhicharecarriedoutonspecimensofdifferentdimensionsorwithdifferentnotches,orspecimenswhicharepreparedunderdifferentconditions,mayproduceresultswhicharenotcomparable.Otherfactors,suchastheenergycapacityoftheapparatus,itsimpactvelocityandtheconditioningofthespecimenscanalsoinfluencetheresults.Consequently,whencomparativedataarerequired,thesefactorsmustbecarefullycontrolledandrecorded.7Themethodshouldnotbeusedasasourceofdatafordesigncalculations.Informationonthetypicalbehaviourofamaterialcanbeobtained,however,bytestingatdifferenttemperatures,byvaryingthenotchradiusand/orthethicknessandbytestingspecimenspreparedunderdifferentconditions.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:20P.;A4
【正文语种】:英语
【英文标准名称】:Electricalequipmentformeasurement,controlandlaboratoryuse,controlandlaboratoryuse-EMCrequirements-Part1:Generalrequirements;Corrigendum1
【原文标准名称】:测量、控制和实验室用电气设备.电磁兼容性(EMC)要求.第1部分:一般要求.勘误表1
【标准号】:IEC61326-1Corrigendum2-2010
【标准状态】:作废
【国别】:国际
【发布日期】:2010-02
【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/SC65A
【标准类型】:()
【标准水平】:()
【中文主题词】:附加装置;应用;建筑自动化;布线;等级;计算机软件;配置;连接件;控制图;控制工艺学;测定;接地;电控制设备;电气的;电气工程;电气设备;电驱动装置;电磁兼容性;EMC;入口;环境条件;评定;出口;特点;频率范围;工业;插入物;干扰抑制;干扰;干扰辐射;实验室;实验室器皿;极限(数学);场所;测量条件;测量仪器;使用条件;工作状态;操作;过程测量和控制设备;辐射;参考;规范(验收);电源电压;系统;试验设备;试验结果;试验;试验准备工作
【英文主题词】:Additionaldevices;Applications;Buildingautomations;Cabling;Classes;Computersoftware;Configuration;Connections;Controlcharts;Controltechnology;Determinations;Earthing;Electriccontrolequipment;Electrical;Electricalengineering;Electricalequipment;Electrically-operateddevices;Electromagneticcompatibility;EMC;Entrances;Environmentalcondition;Evaluations;Exits;Features;Frequencyranges;Industries;Inserts;Interferencerejections;Interferences;Interferingemissions;Laboratories;Laboratoryware;Limits(mathematics);Locations;Measurementconditions;Measuringinstruments;Operatingconditions;Operatingmode;Operation;Processmeasuringandcontrolequipment;Radiation;References;Specification(approval);Supplyvoltages;Systems;Testequipment;Testresults;Testing;Testingset-ups
【摘要】:
【中国标准分类号】:L06;K60
【国际标准分类号】:33_100_01
【页数】:2P;A4
【正文语种】:英语