Design and optimization method of automobile anti-collision beam with bionic structure

• Main Authors: WAN HONGFEI, HE FEIFEI, LI RUIXU, XU MENGHAN, WANG QIYUAN, ZHAO SIXIA, XU LIYOU, ZHANG SHUAI, YAN XIANGHAI
• Format: Patent
• Language: Chinese; English
• Published: 07.04.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

A design and optimization method for an automobile anti-collision beam of a bionic structure comprises the steps of turtle shell structure engineering simplification, anti-collision beam free modal analysis, anti-collision beam strength performance and impact performance analysis and anti-collision beam multi-objective optimization. A turtle shell performance test, a bionic structure anti-collision beam three-point static pressure test and a high-speed and low-speed collision impact test are set in HyperMesh combined Ls-Dyna simulation; the strength, the rigidity, the vibration characteristic, the impact performance and the lightweight performance of the anti-collision beam of the bionic structure are comprehensively considered; by designing the curved surface characteristics of the bionic anti-collision beam and the internal bionic reinforcing rib structure, the awkward situation that the thickness of a material can only be increased or a high-strength material can only be replaced at present can be avoided