1、學校代號!豎塑分類號墮!!i：⑨學號S鯉Q22Q!Q密級溯確火爹HUNANUNIVERSITY碩士學位論文汽車I彳亍人碰撞中行人顱腦動力學響應(yīng)及損傷防護的研究學位申請人姓名奎照培養(yǎng)單位扭越復(fù)煎奎工捏堂瞳導師姓名曼職稱拯鎏墾數(shù)授學科專業(yè)芏犧王猩研究方向監(jiān)至垡撞塞全。陛量鹽論文提交日期!QQ生旦28旦汽車行人碰撞事故中行人顱腦動力學響應(yīng)及損傷防護的研究=============================芒!==============

2、===========================AbstractPedes砸ansarethemostⅦ111emblemadusers，andfkquentlyinvolvedinVellicletrafficaccidencesTheheadbrajninj麗esinvehiclepede矧aIlcollisionsaccountfor30％ofallreponedⅫuriesondi圩crentbodyregions，whi

3、choftenresultedinafatalconsequence加ldsuch兩11riescanresllltindisabilitiesa11dinpareme心，wllichleadtosi鰣丘cantsocialcosts‘‘HowtomdkePedestriansmoresafcr，’hasbecomeanissuewithworldwideconcemTheajmof血isthesisistosilnlllatet11e

4、dyn鋤icresponsesandbiomechallicalresponsesusingaVehiclepedes讎animpactma也ematicmodcl，toanalysemeinnuencesofvemclespeed，stiffhess趾ddimensionoff幻nts仇lcn】retopedestriaIlheadbrainⅫl|des，andtodiscllsstllem啪sofpedestrianprotecti

5、on丘DmvehiclccollisionsThestudiesofpedcgtriansafetyha_vebeen謝delycarriedoutusingdi路rentapproaches，includingfIlllscaled11IIlmyteSts，cadavertests，accidemrccon蚰兀lctions，analysisofaccidentdataandcomputersimulationsIIlnlisstud

6、yt11evehiclepede嘶animpactmodelwaSdevelopedusingnmltibodyprogr踟_nMADYMOnlepedestrianwassimulatedusing恤ChalInersPede嘶an50％MaleAdldtModel，mepassengercarmodelwasdevelopedbasedonmef如ntgeometryofaproductioncarThemcchanicalprop

7、ertyofthecarmodelwasde矗nedbasedonresuhs舶mEllroNCAPdyn鋤ictestsFactorialtestmethodwasadoptedintllistllesis，toanalysemeinnuencesofpassengercarfrontstm咖resandsti舫essonpedcstri趾headbmin蝎uriesIntlleparameterstudy血ecarf如ntalgeo

8、me仃y鋤dsti曲esswasdefinedbasedareferencetopassengervclliclesproducedindi伍：rentcolH衄esatimpactSpeedsof20，30，40，aIld50krI油Theresults丹om恤isstudywereaIlalyzedaIlddiscuSsedintemlsof刪urymcchanjsmTheresult咖edouttobeofthat：firstof

9、all，velliclespeedhadthesignific趾tin婦uencetohead—brain塒uries，itwouldleadfatalⅫurieswhenthespeedexceed40kII汕；sccondly，sti缸essesofcar舶ntpansalsoa腩ctedthelevelofhead—brain蜘uⅨandpmperlyreducingtllesti盯nesseshadmebenefitsofinl

10、provingheadprotection；Ⅲrdly，meheightofboIllletleadingedgewasalsoimponamtopedestriaIlhead_braininj嘶es，andomer曲Ilensionpar鋤eters，moreorless，hadrelationsllipstotlleou印utsTllisstIldyprovidedane虢ctiVeapproacha11dsimulationmod