【英文标准名称】:StandardPracticeforTestingandUseofaRandomNumberGeneratorinLumberandWoodProductsSimulation
【原文标准名称】:木材及木制品模拟中随机编号产生器使用和检验的标准实施规范
【标准号】:ASTMD5124-1996(2007)
【标准状态】:现行
【国别】:
【发布日期】:1996
【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】:D07.05
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:试验;模拟;木制品
【英文主题词】:computersimulation;distribution;engineeringapplications;histograms;lumber;randomnumbergenerator;simulatedservicetest;simulation;standarduniformdistribution(R);statisticalmethods;structuralsimulation;structuralwoodproducts;woodp
【摘要】:Computersimulationisknowntobeaverypowerfulanalyticaltoolforbothpractitionersandresearchersintheareaofwoodproductsandtheirapplicationsinstructuralengineering.Complexstructuralsystemscanbeanalyzedbycomputerwiththecomputergeneratingthesystemcomponents,giventheprobabilitydistributionofeachcomponent.Frequentlythecomponentsaresingleboardsforwhichacompatiblesetofstrengthandstiffnesspropertiesareneeded.However,theentirestructuralsimulationprocessisdependentupontheadequacyofthestandarduniformnumbergeneratorrequiredtogeneraterandomobservationsfromprescribedprobabilitydistributionfunctions.Thetechnologicalcapabilitiesandwideavailabilityofmicrocomputershasencouragedtheirincreaseduseforsimulationstudies.Testsofrandomnumbergeneratorsincommonlyavailablemicrocomputershavedisclosedseriousdeficiencies(1).3Adequacymaybeafunctionofintendedend-use.Thispracticeisconcernedwithgenerationofsetsofrandomnumbers,asmayberequiredforsimulationsoflargepopulationsofmaterialpropertiesforsimulationofcomplexstructures.Formoredemandingapplications,theuseofpackagedandpretestedrandomnumbergeneratorsisencouraged.1.1Thispracticegivesaminimumtestingprocedureofcomputergenerationroutinesforthestandarduniformdistribution.Randomobservationsfromthestandarduniformdistribution,RU,rangefromzerotoonewitheveryvaluebetweenzeroandonehavinganequalchanceofoccurrence.1.2Thetestsdescribedinthispracticeonlysupportthebasicuseofrandomnumbergenerators,nottheiruseincomplexorextremelyprecisesimulations.1.3Simulationdetailsforthenormal,lognormal,2-parameterWeibulland3-parameterWeibullprobabilitydistributionsarepresented.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Seespecificwarningstatementin5.5.3.
【中国标准分类号】:B68
【国际标准分类号】:79_040
【页数】:5P.;A4
【正文语种】: