Designation:D3580−22StandardTestMethodsforVibration(VerticalLinearMotion)TestofProducts1ThisstandardisissuedunderthefixeddesignationD3580;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodscoverthedeterminationofreso-nancesofunpackagedproductsandcomponentsofunpackagedproductsbymeansofverticallinearmotionatthesurfaceonwhichtheproductismountedfortest.Twoalternatetestmethodsarepresented:TestMethodA—ResonanceSearchUsingSinusoidalVibration,andTestMethodB—ResonanceSearchUsingRandomVibration.NOTE1—Thetwotestmethodsarenotnecessarilyequivalentandmaynotproducethesameresults.Itispossiblethattestsusingrandomvibrationmaybemorerepresentativeofthetransportenvironmentandmaybeconductedmorequicklythansinetests.1.2Thisinformationmaybeusedtoexaminetheresponseofproductstovibrationforproductdesignpurposes,orforthedesignofacontainerorinteriorpackagethatwillminimizetransportationvibrationinputsatthesecriticalfrequencies,whentheseproductsresonancesarewithintheexpectedtransportationenvironmentfrequencyrange.Sincevibrationdamageismostlikelytooccuratproductresonantfrequencies,theseresonancesmaybethoughtofaspotentialproductfragilitypoints.1.3Informationobtainedfromtheoptionaldwelltestmeth-odsmaybeusedtoassessthefatiguecharacteristicsoftheresonatingcomponentsandforproductmodification.Thismaybecomenecessaryiftheresponseofaproductwouldrequiredesignofanimpracticalorexcessivelycostlyshippingcon-tainer.1.4Thesetestmethodsdonotnecessarilysimulatethevibrationeffectsthattheproductwillencounterinitsopera-tionalorin-useenvironment.Other,moresuitabletestproce-duresshouldbeusedforthispurpose.1.5Testlevelsgiveninthesetestmethodsrepresentthecorrelationofthebestinformationcurrentlyavailablefromresearchinvestigationandfromexperienceintheuseofthesetestmethods.Ifmoreapplicableor...
