FMVSS Part 581 Bumper Test System 保险杠的实验标准

TMSITestMeasurementSystems,Inc.150SpringsideDriveSuiteA100Akron,Ohio44333Sales:(888)TMSI-USATel:[phone]Fax:[phone](FMVSS)Part581specifiesrequirementstominimizedamagetothefrontandrearendsofpassengercarsinlow-speedcollisions.TheequipmentdescribedwillperformtestsaccordingtotheFMVSSPart581specification,plusperformotherResearchandDevelopmentalTesting.DescriptionTwodifferenttestdevicesarerequiredtoperformPart581tests:APendulumTesterandaBarrierImpactTester,describedasfollows.PendulumThependulumtesterconsistsofalargesteelframethatsupportsaswingingmassviaaparallelogramlinkage.ThemassframesupportscontactplanesandanimpactridgeconformingtothePart581BumperStandard.Theheightoftheimpactridgeisinfinitelyadjustablebymotor-drivenscrewjacks,locatedatthecornersofthesupportframe,inarangeoffrom15to21inches.Massplatescanbeaddedorremovedtoadjustthependulummassfrom1200to4500pounds.Impactspeedsofupto10mph(16kph)canbeobtainedbydrawingthependulumpull-backcabletoapendulumangleofupto45°beforereleasingthequick-disconnectholdinglatch.Instrumentation,consistingof8ea2,000lbloadcells,3ea25,000lbloadcellsand4ea10gaccelerometerstorecordtheinertia-compensatedcontactforcesofupto20,000oneachcontactplaneandto60,000lbontheimpactridge.Computercalculationsincludebumpercontactforce,pendulumandvehiclevelocities,vehicledeflection,andenergytransfer.Computer,printer,andcontrolelectronicsarehousedinaverticalrackenclosureespeciallypreparedforelectronicinstrumentationLow-SpeedBarrierA25Hpprogrammableacceleration/velocityDCmotorandwinchcablesystempropelsatestvehicleatspeedsupto10mphalonga23.5mguiderail.Thevehicleisthenreleasedandimpactsthe30toncapacityloadbarrier.Alaseropticalspeedtrapmeasurestheimpactvelocity.Impactforce,vehicleaccelerationandbumper(vehicle)deformationarerecordedbythecomputerizeddataacquisitionsystem(DAS).The25Hpprogrammablemotorisspeedcontrollabletowithin±0.01%error.Normallythemaximumtestspeedislimitedto16kphforallvehiclemassesupto3000kg.MaximumsystemspeedcapabilitiesareVehicleMass(kg)MaxSpeed(kph)100032150030200026250023300021Thebarrierismadeofasteelframeimbeddedinconcreteandmeasures1.5mhighx1.5mdeepx3mwide.OptionalFront-into-Angle-BarrierandRear-into-PoletestfixturesarealsoavailableandaredetailedinthefollowingInsuranceInstituteforHighwaySafetyReport,“Low-SpeedCrashTestProtocol.”Additionally,anoptionaltestcartisavailableformountingbumpersystemsforimpactbyeitherthePendulumTMSITestMeasurementSystems,Inc.150SpringsideDriveSuiteA100Akron,Ohio44333Sales:(888)TMSI-USATel:[phone]Fax:[phone]®95/NT-basedsoftwareforintuitiveoperationwithminimaloperatortraining.TMSIMicroTeStationTMhousedin20.5Wx72Hx24Dinchinstrumentrackenclosure.Includes:#Intel80686Pentium®BasedMicroprocessorIndustrialComputer#StandardHardDiskDrive#Single3.5in.FloppyDiskDrive#ARemovableDiskDriveforDataArchivalandStorage#RandomAccessMemory#SVGAColorMonitor#Windows®95/NTOperatingSystem#32ChnlA/D,DIOOn-boarddataacquisition/reductionsystem#16ChnlAntiAliasFilters#TelephoneModem#ColorPrinterDataAcquisition/ControlParallelCPUfull-timedataacquisition/controlprocessingisaccomplishedbyMicroStarDataAcquisitionProcessors(DAP)whichfeatureon-boardCPUandmemoryaswellasAnalogtoDigitalandDigitaltoAnalogconverters.Closed-loopdigitalPIDcontrolisachievedon-boardtheDAPunitforfullsoftwaretunabilityoftheDCmotordriveinvelocityandaccelerationfeedbackcontrol.#MicroStarDAP3000/16DataAcquisitionProcessortooperateinparallelwiththePentiumBasedMicroprocessor#ComputerBoardsCIO/DIO24SSR,SolidStateRelaysforsensingandcontrollingdigitalinputsandoutputsAsinglecontrolconsoleandcomputeroperatesboththePendulumandBarrierTesters.SoftwareImpactTESTTMisTMSI'sdataacquisition/reductionprogramtooperatetheon-siteMicroTeStationinWindows95presentation,controltestsaccordingtoFMVSSPart581;reduceandpresenttabularandgraph-icalreports,andarchivetestsresultstohardorfloppydisk.