【英文标准名称】:SymbolsforMechanicalandAcousticalElementsasUsedinSchematicDiagrams
【原文标准名称】:用于原理图的机械元件和声学元件符号
【标准号】:ASMEY32.18-1972
【标准状态】:现行
【国别】:美国
【发布日期】:1972-01-01
【实施或试行日期】:
【发布单位】:美国机械工程师协会(US-ASME)
【起草单位】:ASME
【标准类型】:()
【标准水平】:()
【中文主题词】:图示;图解表示;声学;符号;图形符号;力学;工程图
【英文主题词】:Acoustics;Diagrams;Engineeringdrawings;Graphicsymbols;Mechanics;Schematicrepresentation;Symbols
【摘要】:1.Scope:Thisdocumentpresentsstandardsymbolsanddefinitionsthatmaybeusedinconstructingschematicdiagramsformechanicalandacousticalsystemswhoseperformancesaredescribablebyfinitesetsofscalarvariables.Thechoiceofsymbolsdescribedhereinisbaseduponthefollowingassumptions:a)Asystemcanbedividedconceptuallyintoafinitesetofelementseachofwhosedynamicalpropertiesareknown.b)Toeachsuchconceptualelementtherecanbeassignedasetofterminals.c)Symbolsfortheelementsshallbeinterconnectedtoformaschematicdiagramforthewholesystemsothatfieldequationsshallbesatisfiedateveryjunctionpointandaroundeveryclosedloop.Thesymbolswhichappearinthisstandardwereevolvedwiththefollowingprinciplesinmind:a)Itshallbepossibletodrawthesymbolseasilyandquickly.b)Thesymbolshallbedistinctiveandwherefeasibleshallsuggestsomewell-knownembodimentoftheelementinquestion.c)Thesymbolsshallpreferablyhavebeenusedpreviouslyinthescientificliterature.NOTE1:Questionsconcerningthespecificformforaso-calledequivalentcircuitofanelectro-mechanicaloranyothertypeofmixedsystemarenotwithinthescopeofthisstandard.NOTE2:AnAppendix(notapartofthisstandard)providesbackgroundinformationontheuseofthesymbolsinconstructingschematicdiagrams.
【中国标准分类号】:J04
【国际标准分类号】:01_080_30;17_140_01
【页数】:23P.;A4
【正文语种】:英语