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1、萬(wàn)方數(shù)據(jù)ABSTRACTEveryyearinourcountry,thenumberofinjuriesanddeathsduetotrafficaccidentsupto300thousandpeople,whilethereal"occupantcasualtyestimatesabout30thousand.Atpresent,constraintsystemmatchesunreasonableandthedummyOCCursubmarinephenomenonistherearoccupantfacingthe
2、mainproblemintheaccident.Inthispaper,onthebasisofavehiclediagnostictest,weestablishthecarrearconstraintsystemsimulationmodelaboutfrontalimpactbyMADYMOsoftware,andthenresearchtheinjuryofrearfemaledummy,andputforwardsomecorrespondingimprovenmentmeasures:seatbelttypec
3、hangesfromordinarybeltstohavinglimitedforcefunction,andthatthelimitedforceof5000Nisbetter;Theseatflamestructureimprovestothestructureofantisubmarine,thisimprovementhasasignificanteffectonpreventingtherearoccupantsubmarine.Ultimately,theappraisalscoreofrearfemaledum
4、myimprovessignificantly,whiletheschemehasbeenaffirmedintherealCartest,alsoprovidesavaluablepracticalexperienceinsolvingthereardummysubmarine.Inthispaper,theslimtotalofstudyonthesubjectiscontainedasfollows:Firstofall,Itintroducesthestatusanddevelopmenttrendsaboutthe
5、rearoccupantprotectionofdomesticandinternational,andaccordingtothesituationofourcountry,furtheranalysisoftherearoccupantsafetyissues.Thesecond,analysisofarealvehiclecrashdiagnostictestdata,wediscovertheproblemsinthenewcardevelopmentprocess,andpointoutthepossiblecau
6、sesofthereardummydamage,andanalysisofthe‘submarine’problem.Then,webuildareal"passengerfrontalimpactrestraintsystemmodelbyMADYMOsoftware,andusethesimulationmodelresultcomparing、Ⅳitllthevehicletestresults,inordertoachievethefollowingsimulationrequirements.Weresearcho
7、ntherestraintsystemparametersbyusingthevalidatedsimulationmodel,andcomparewiththedifferenceofchangingparametersinthesimulationmodel,andobtainthebestreal"constraintsystemmatchingschemeforimproverearoccupantinjury.Thelast,weputthebestreal"constraintsystemmatchingsche
8、meintotherealvehicle,theresultsoftheCartestshowthat,thebestrearconstraintsystemmatchingschemeinimprovingtheeffectoftherearoccupantinjuryisobvious