学科分类
/ 1
1 个结果
  • 简介:Thoughthebumperofavehicleplaysamajorroleinprotectingthevehiclebodyagainstdamageinlowspeedimpacts,manybumpers,particularlyinlargevehicles,aretoostiffforpedestrianprotection.Indesigningabumperforanautomobile,pedestrianprotectionisasimportantasbumperenergyabsorptioninlowspeedcollisions.Topreventlowerextremityinjuriesincar-pedestriancollisions,itisimportanttodeterminetheloadingsthatcarfrontstructuresimpartonthelowerextremitiesandthemechanismsbywhichinjuryiscausedbytheseloadings.Thepresentworkwasfocusedongainingmoreinsightintotheinjurymechanismsleadingtobothligamentdamageandbonefractureduringbumper-pedestriancollisions.TheEuropeanEnhancedVehicle-safetyCommittee(EEVC)legformimpactormodelwasintroducedandvalidatedagainstEEVC/WG17criteria.ThecollisionmechanismbetweenabumperandthislegformimpactorwasinvestigatednumericallyusingLS-DYNAsoftware.Toidentifytheeffectofthebumperbeammaterialonleginjuries,fouranalyseswereperformedonbumpersthathadthesameassemblybutweremadefromdifferentmaterials.

  • 标签: 行人保护 碰撞模型 下肢 汽车 撞击 受伤