RESEARCH ON THE COLLISION ENERGY ABSORPTION CHARACTERISTICS OF THE ENERGY-ABSORBING BOX FRONT ANTI-COLLISION BEAM SYSTEM
LI HongTao
ZHANG JiaQi
SONG QingSong
JI YunGuang
WANG Nan
Abstract：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.
Keywords：Automotive engineeringAnti-collision beamEnergy-absorbing boxCollision safety
Publication Date：2024-12-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：8( 1338-1345 )