Collaborative Optimization of Vehicle Crashworthiness under Frontal Impacts Based on Displacement Oriented Structure

Frontal impacts are the most frequent crash types and may generate extreme body in white (BIW) deformations. Vehicles subjected to impact evaluation rating protocols such as 100 % Front Rigid Barrier (FRB) impact, 40 Offset Deformable (ODB) 25 overlap (small overlap) impact. This paper proposes a collaborative optimization process using optimal Latin hypercube design (Opt LHD) response surface methodology (RSM), improve vehicle crashworthiness frontal impacts, by considering displacement oriented structure (DOS). Upper lower engine bay were considered herein increase lateral during small decrease force that transferred passenger compartment impacts. The results indicated acceleration of B-pillar was reduced 0.4g FRB intrusion firewall 55.13 ODB decreased an average 53.88 %, with maximum percentage 71.41 around left toepan, leading IIHS acceptable from poor. proposed approach is effective for better performance.