SAE ARP4163 Balancing Machines: Tooling Design Criteria
作者:标准资料网 时间:2024-05-21 02:44:38 浏览:9765
来源:标准资料网
Product Code:SAE ARP4163
Title:Balancing Machines: Tooling Design Criteria
Issuing Committee:Eg-1a Balancing Committee
Scope:This document establishes general design criteria, tolerances, and limits of application for tooling, fixtures and accessories for mounting and driving gas turbine engine rotors on horizontal and vertical balancing machines.
【英文标准名称】:StandardPracticeforClassificationofSoilsforEngineeringPurposes(UnifiedSoilClassificationSystem)
【原文标准名称】:工程用土壤分类的标准实施规程(统一土壤分类法)
【标准号】:ASTMD2487-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D18.07
【标准类型】:(Classification)
【标准水平】:()
【中文主题词】:
【英文主题词】:Atterberglimits;classification;clay;gradation;gravel;laboratoryclassification;organicsoils;sand;silt;soilclassification;soiltests;Atterberglimits;Clay;Coarse-grainedsoil;Erosioncontrolmaterials/applications;Fine-grainedsoil;Grada
【摘要】:Thisstandardclassifiessoilsfromanygeographiclocationintocategoriesrepresentingtheresultsofprescribedlaboratoryteststodeterminetheparticle-sizecharacteristics,theliquidlimit,andtheplasticityindex.Theassigningofagroupnameandsymbol(s)alongwiththedescriptiveinformationrequiredinPracticeD2488canbeusedtodescribeasoiltoaidintheevaluationofitssignificantpropertiesforengineeringuse.Thevariousgroupingsofthisclassificationsystemhavebeendevisedtocorrelateinageneralwaywiththeengineeringbehaviorofsoils.Thisstandardprovidesausefulfirststepinanyfieldorlaboratoryinvestigationforgeotechnicalengineeringpurposes.ThisstandardmayalsobeusedasanaidintrainingpersonnelintheuseofPracticeD2488.ThisstandardmaybeusedincombinationwithPracticeD4083whenworkingwithfrozensoils.Note58212;Notwithstandingthestatementsonprecisionandbiascontainedinthisstandard:Theprecisionofthistestmethodisdependentonthecompetenceofthepersonnelperformingitandthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting.UsersofthistestmethodarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliabletesting.Reliabletestingdependsonseveralfactors;PracticeD3740providesameansforevaluatingsomeofthosefactors.1.1Thispracticedescribesasystemforclassifyingmineralandorgano-mineralsoilsforengineeringpurposesbasedonlaboratorydeterminationofparticle-sizecharacteristics,liquidlimit,andplasticityindexandshallbeusedwhenpreciseclassificationisrequired.Note18212;Useofthisstandardwillresultinasingleclassificationgroupsymbolandgroupnameexceptwhenasoilcontains5to12%finesorwhentheplotoftheliquidlimitandplasticityindexvaluesfallsintothecrosshatchedareaoftheplasticitychart.Inthesetwocases,adualsymbolisused,forexample,GP-GM,CL-ML.Whenthelaboratorytestresultsindicatethatthesoilisclosetoanothersoilclassificationgroup,theborderlineconditioncanbeindicatedwithtwosymbolsseparatedbyaslash.Thefirstsymbolshouldbetheonebasedonthisstandard,forexample,CL/CH,GM/SM,SC/CL.Borderlinesymbolsareparticularlyusefulwhentheliquidlimitvalueofclayeysoilsiscloseto50.Thesesoilscanhaveexpansivecharacteristicsandtheuseofaborderlinesymbol(CL/CH,CH/CL)willalerttheuseroftheassignedclassificationsofexpansivepotential.1.2Thegroupsymbolportionofthissystemisbasedonlaboratorytestsperformedontheportionofasoilsamplepassingthe3-in.(75-mm)sieve(seeSpecificationE11).1.3Asaclassificationsystem,thisstandardislimitedtonaturallyoccurringsoils.Note28212;Thegroupnamesandsymbolsusedinthistestmethodmaybeusedasadescriptivesystemappliedtosuchmaterialsasshale,claystone,shells,crushedrock,etc......
【中国标准分类号】:P13
【国际标准分类号】:93_020
【页数】:11P.;A4
【正文语种】:英语
