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1、重慶大學(xué)碩士學(xué)位論文轎車側(cè)面碰撞計(jì)算機(jī)仿真技術(shù)研究與應(yīng)用姓名：黃超群申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：車輛工程指導(dǎo)教師：胡玉梅20070420英文摘要ABSTRACTWiththeamoBntofautomobileincreasing,thetrafficaccidenthasbecomeaseriousproblemintheworld．Thestatisticdataoftrafficaccidentinthelastyearsindicatedthatthetrafficaccidentscausedbysideimpactworehigherthanfrontimpact,thedeathr
2、atecausedbysideimpactWasonlyinferiortofrontimpact,buttheharmfulratecausedbysideimpactWasthehighestinalloftheimpactaccidents．Thelateralofthevehicleisalwaysveryweak,andthecushionareaissmall，SOtheabsorbingabilityispoorandtheriskofdamageishigh．Thereforethesafetystudyaboutvehiclesideimpactisveryimportan
3、ttoimprovetheintegersafetyabilityoftheCarinourcountry．Thearticleexpatiatethebasictheoryonthecomputersimulationofvehicleimpactfirstly,thenresearchonthesideimpactsimulationaboutachosencar．Thisarticleemphasis011thebasicresearchofvehiclesideimpactsimulation，discussingtheinfluenceofthemeshsizeandelement
4、typeandthenumberofintegrateontheaccuracyandefficiency,andacquiresomeconclusion：①consideringfromefficiencyandaccuracy,thesizeofcarbodyischosentobe12+12mm,andthebasicelementtypeisBT'butfromtheaspectofelementstiffness，theBWCarithmeticofelementcansarisfythedemandofsideimpactsimulation．②choosedifferenti
5、ntegratepointsindifferentareasofvehiclebody，asforthelargedeformationareas。choosemoreintegratepoints，asforthepartsfhrawayfromcrasharea,chooselesspoints。Todifferentareas，theintegratepointsincreasewiththebadnessofdeformation．@ThehourglassmodeCanbewellcontrolledbystiffnesshourglasscontrolintheprocessof
6、sideimpactsimulation．④Theinfluenceofweldfailureontheabsorbingperformanceofpartsislarge，weldfailureisconsideredinthearticle．Theabovestudyensuresthecorrectnessofvehiclesideimpactsimulation．Accordingtothedemandofthecodeaboutthemovabledeformablebarrierandthemethodstochecktheexperiments，thisarticlemodit
7、iessomecorrelativeparametersofdeformationandabsorbingperformances，andthenvalidatesitscorrectness．ModifysomeparametersofEuro-SIDIItomakesurethemainstandardizationofthedummyiscorrect，andprovideabasalmodelfors
