CAJ | 학술논문

为某车型设计并试制了一种铝合金前保险杠横梁,其质量比原来的DP1200超高强钢制的原型减轻了35%。在25km/h车速的碰撞试验时,铝合金保险杠横梁的第一个加速度峰值比钢制横梁大2.6g,且最大峰值出现的时间提前了5ms,说明铝合金保险杠横梁能更好地保护驾乘人员的安全。仿真结果表明,在10km/h车速的正面碰撞时,铝合金前保险杠横梁的最大侵入量比钢制横梁小7mm,而吸能量比钢制横梁增加了70%。
위모차형설계병시제료일충려합금전보험강횡량,기질량비원래적DP1200초고강강제적원형감경료35%。재25km/h차속적팽당시험시,려합금보험강횡량적제일개가속도봉치비강제횡량대2.6g,차최대봉치출현적시간제전료5ms,설명려합금보험강횡량능경호지보호가승인원적안전。방진결과표명,재10km/h차속적정면팽당시,려합금전보험강횡량적최대침입량비강제횡량소7mm,이흡능량비강제횡량증가료70%。
The aluminum alloy front bumper beam for a vehicle is designed and trial-produced with a mass 35% lighter than original bumper beam of DP1200 ultra high strength steel. In a frontal crash test with a speed of 25km/h, the first acceleration peak for aluminum alloy bumper beam is 2. 6g higher and 5ms earlier, compared with that for steel one, meaning that aluminum alloy bumper beam can better protect the safety of driver and occupants. The results of simulation show that in a frontal crash with a sped of 10km/h, the maximum intrusion for aluminum alloy bumper beam is 7mm smaller and the energy absorption is 70% more, compared with steel bumper beam.