作者:标准资料网 时间:2024-05-20 04:17:00   浏览:9929   来源:标准资料网

【英文标准名称】:Symbolsformechanicalandacousticalelementsasusedinschematicdiagrams
【原文标准名称】:原理图中使用的机械元件和声元件的符号
【标准号】:ANSIY32.18-1972
【标准状态】:现行
【国别】:美国
【发布日期】:1972
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:图示;定义;力学;图解表示;图形符号;符号;声学;工程图
【英文主题词】:graphicsymbols;acoustics;engineeringdrawings;mechanics;definitions;schematicrepresentation;diagrams;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】:
【页数】:24P.;A4
【正文语种】:英语