燃料电池城市客车侧面碰撞有限元分析  

Finite Element Analysis on the Side-impact Safety of Fuel Cell City Bus

作　　者：邹俊[1] 桂良进[1] 范子杰[1] 

机构地区：[1]清华大学汽车安全与节能国家重点实验室

出　　处：《汽车技术》2009年第4期4-7,共4页Automobile Technology

基　　金：国家863计划资助项目(项目编号:2007AA047Z133和2006AA11A102)

摘　　要：在参考汽车侧面碰撞试验国家标准GB20071-2006和欧盟ECER95法规基础上,建立了以壳单元为主的整车有限元模型、移动变形壁障有限元模型和主要车载设备安装空间模型。采用LS-DYNA软件对燃料电池城市客车右侧中部、左侧中部和左侧后部3个相对较为危险位置的侧面碰撞进行了数值模拟,计算得到了侧面碰撞对燃料电池城市客车主要车载设备的加速度冲击。模拟结果表明,通过加装碰撞防护装置和增加底架的横向强度,燃料电池城市客车侧撞安全性可以得到较好保证。Based on national standard GB20071-2006 and regulation ECE R95, the complete vehicle finite element model,movable and deformable barrier finite element model,assembly space model for main on-board equipment were established in the paper.Three dangerous side-impact situations for fuel cell city bus （FCCB）were simulated by using software LS-DYNA,the acceleration impact of main on-board equipment of FCCB in side-impact were also gotten The results of simulations showed that the side-impact safety of the FCCB could be well guaranteed by adding collision prevention devices and increasing transverse strength of the underframe.

关 键 词：燃料电池城市客车 侧撞安全性 有限元分析 

分 类 号：U461.91[机械工程—车辆工程]