ASTM D999-2008 集装箱振动测试的标准试验方法

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【英文标准名称】:StandardTestMethodsforVibrationTestingofShippingContainers
【原文标准名称】:集装箱振动测试的标准试验方法
【标准号】:ASTMD999-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D10.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:repetitiveshock;resonance;shippingcontainer;stackresonance;vibration;Repetitiveshock;Resonances;Shippingcontainers/materials/applications;Shocktest--shippingcontainers;Stackresonance;Vibrationresistance;Vibrationtest--packaging/sh
【摘要】:Shippingcontainersareexposedtocomplexdynamicstresseswhensubjectedtovibrationpresentinalltransportationvehicles.Approximatingtheactualdamage,orlackofdamage,experiencedinshippingmayrequiresubjectingthecontainer(s)andcontentstovibrationinputs.Resonantresponsesduringshipmentcanbesevereandmayleadtopackageorproductfailure.Identificationofcriticalfrequencies,andthenatureofpackagestressescanaidinminimizingtheeffectoftheseoccurrences.Vibrationtestsshouldbebasedonrepresentativefielddata.Whenpossible,theconfidencelevelmaybeimprovedbycomparinglaboratorytestresultswithactualfieldshipmentdata.Itishighlyrecommendedthatoneunderstandthemostcommonfailurestoonex2019;sproductsandpackagingindistribution,andthenattempttoreplicatethosefailuresinthelaboratory.Oncesuchreplicationisestablished,thenthattestcanbecometheminimumnecessarytestforfuturepackagedproductstopass.Exposuretovibrationcanaffecttheshippingcontainer,itsinteriorpackaging,meansofclosure,andcontents.Thesetestsallowanalysisoftheinteractionofthesecomponents.Designmodificationtooneormoreofthesecomponentsmaybeutilizedtoachieveoptimumperformanceintheshippingenvironment.MethodsA1andA2,RepetitiveShockTests,aresuitablefortestsofindividualcontainersthataretransportedunrestrainedonthebedofavehicleandmaybesuitablefortestsofcontainersthatmightbesubjectedtorepetitiveshocksduetomagnificationofvibrationsinunitloadsorstacks.Note18212;MethodsA1andA2producedifferentvibrationmotions,andtherefore,willgeneratedifferentforceswhichmayresultindifferentdamagemodesandintensities.Resultsfromthesetwomethodsmaynotcorrelatewithoneanother.MethodB,SingleContainerResonanceTest,testsordeterminestheabilityofanindividualcontaineranditsinteriorpackagingtoprotectthecontentsfromtransportationvibration,particularlywhenthecontaineranditscontentsmightexhibitresonantresponses.Note28212;IndividualproductsthatarepalletizedmightbebettertestedusingMethodC.MethodC,PalletizedLoad,UnitizedLoadorVerticalStackResonanceTest,coversthedeterminationofthepresenceandtheeffectsofresonanceinpalletizedloadsandmultiple-unitstackedloads,andwhetherornotthestrengthofthecontainersissufficienttowithstanddynamicloadswhenstacked.Anyorallofthesetestmethodsmaybeemployed,asdeterminedbytheappropriateperformancespecification,withtestintensities,frequencyranges,andtestdurationsascalledforinthespecification.Althoughthesetestsdonotsimulatetheshippingenvironment,theyareintendedtocreatethedamage-producingpotentialoftheshippingenvironment.Resultsofanyoneofthesemethodsmaydifferfromtheresultsoftheothers.1.1Thesetestmethodscovervibrationtestsoffilledshippingcontainers.Suchtestsmaybeusedtoassesstheperformanceofacontainer,withitsinteriorpackingandmeansofclosure,bothintermsofitsstrengthandoftheprotectionitprovidesitscontentswhenitissubjectedtovibrationsuchasitexperiencesintransportation.Theseproceduresaresuitablefortestingcontainersofanyform,material,kind,designofinteriorpacking,meansofclosure,andanysizeandweight.Theyarenotintendedfordeterminingtheresponseofproductstovibrationforproductdesignpurposes,noraretheyintendedfortestsofp......
【中国标准分类号】:Z32
【国际标准分类号】:55_040
【页数】:5P.;A4
【正文语种】:英语