可提高客车侧翻安全性的变截面冲压立柱结构设计  

Structural design of variable cross-section stamping column to improve bus rollover safety

作　　者：刘玉[1] 姚成[1] 那景新[1] 

机构地区：[1]吉林大学汽车仿真与控制国家重点实验室,长春130022

出　　处：《吉林大学学报（工学版）》2014年第1期17-21,共5页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(51075187)

摘　　要：针对客车侧翻事故中侧窗立柱承受侧翻碰撞力矩不相等的特点,提出了变截面冲压立柱的解决方案,对冲压立柱的截面尺寸进行了设计。先用有限元方法对等截面立柱车身段进行了仿真分析,并通过实验验证了该方法的有效性。然后运用该有限元法对变截面立柱客车车身段进行仿真分析,结果表明:变截面冲压立柱能大幅度提高整车的侧翻安全性。According to the characteristic that, in bus rollover accident, the window pillar withstands unequal rollover crash moments, an approach of variable cross-section stamping column is proposed and cross-section dimension of column is studied. First, finite element method is used to simulate the performance of uniform cross-section stamping column, and experiments is conducted to validate finite element method. Then, finite element method is applied to simulate the performance of variable cross-section stamping column in bus rollover. Results show, compared with uniform cross-section column, the variable cross-section stamping column can significantly improve the safety in bus rollover accident.

关 键 词：车辆工程 变截面冲压立柱 侧翻安全 客车 

分 类 号：U461.91[机械工程—车辆工程]