The front anti-collision beam system is an important component to improve the safety of the whole vehicle.Among them

the structural parameters of the energy-absorbing box and the beam directly affect the crash resistance of the vehicle body.In order to obtain the optimization scheme of the energy-absorbing box-type front anti-collision beam system

firstly

from the three perspectives of crushing form

initial peak force and specific energy absorption

the impact of the cross-section structure of the energy-absorbing box on the crash-worthiness performance was studied.Then

the impact of the cross-section structure of the beam on the crash-worthiness performance was studied from the two dimensions of bending strength and energy absorption value.Finally

the crash-worthiness performance of the optimized energy-absorbing box-type front anti-collision beam system in the case of frontal collision and partial collision was studied.The results show that

the regular hexagonal section has a good energy absorption effect;the tripple channel beam has high flexural strength and good energy absorption effect;the new energy-absorbing box-type front anti-collision beam system compared to traditional systems

in the case of frontal collision and partial collision

the energy absorption values increase respectively by 11.5% and 31.6%

and the intrusion amount decreases respectively by 53.2% and 16.1%.The support for the research on the safety performance of the optimized anti-collision beam system is provided.