面向变厚度柔性轧制工艺的帽型梁横向冲击吸能优化设计 1)

童泽奇,刘杨,刘书田

DESIGN OPTIMIZATION OF TOP-HAT BEAM FOR ENERGY ABSORPTION UNDER TRANSVERSE CRASH BASED ON VARIABLE GAUGE ROLLING 1)

Zeqi Tong,Yang Liu,Shutian Liu

表1 优化后的直线过渡型轧制结构的几何参数

Table 1 Optimized geometry parameters of top-hat beam with straight line majored transition section

Structure Geometry h,h丨 l4丨 ,2,t2 丨 hi h,hl label parameter mm mm mm mm mm 1 length 250 60 690 — — thickness 1.536 — 1.346 — — 2 length 320 90 170 100 320 thickness 1.827 — 1.418 — 0.975