Scholarlink

<p>Lattice structure materials exhibit excellent mechanical properties, particularly in terms of collision resistance and impact energy absorption. This study investigates a metal lattice structure applied to an energy-absorbing box (EAB) for performance enhancement. Initially, by comparing the mechanical properties of various lattice structures through experimental methods, the face-centered cubic structure reinforced along the Z-axis (FCCZ) is selected for its superior anti-collision performance. Using a multi-objective optimization approach, the unit cell configuration is optimized, resulting in a 23.6% increase in specific energy absorption (SEA). Subsequently, the optimized lattice structure is incorporated into the design of the EAB, and four structural improvement schemes are proposed. Based on the force conditions of the EAB, the lattice structure is designed utilizing a variable density design approach. Subsequently, the SEA of the EAB is further enhanced by 21.8%. Finally, the variable-density lattice EAB is applied to an automotive anti-collision beam. Simulation results demonstrate a reduction in weight, decreased compression deformation, and a 15.2% improvement in SEA. Thus, the proposed design method effectively optimizes anti-collision performance.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Mechanical analysis and optimization design of FCCZ type energy absorbing box for car

  • 期刊论文

  • 发表日期：

    2026年4月22日

查看全文
  • Guoliang Ma,
  • Yuchuan Li,
  • Shizhuo Xu,
  • Daniil Yurchenko

摘要

Lattice structure materials exhibit excellent mechanical properties, particularly in terms of collision resistance and impact energy absorption. This study investigates a metal lattice structure applied to an energy-absorbing box (EAB) for performance enhancement. Initially, by comparing the mechanical properties of various lattice structures through experimental methods, the face-centered cubic structure reinforced along the Z-axis (FCCZ) is selected for its superior anti-collision performance. Using a multi-objective optimization approach, the unit cell configuration is optimized, resulting in a 23.6% increase in specific energy absorption (SEA). Subsequently, the optimized lattice structure is incorporated into the design of the EAB, and four structural improvement schemes are proposed. Based on the force conditions of the EAB, the lattice structure is designed utilizing a variable density design approach. Subsequently, the SEA of the EAB is further enhanced by 21.8%. Finally, the variable-density lattice EAB is applied to an automotive anti-collision beam. Simulation results demonstrate a reduction in weight, decreased compression deformation, and a 15.2% improvement in SEA. Thus, the proposed design method effectively optimizes anti-collision performance.