主办:陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊:1976年

汽车实用技术 ›› 2023, Vol. 48 ›› Issue (18): 20-28.DOI: 10.16638/j.cnki.1671-7988.2023.018.005

• 设计研究 • 上一篇    

基于点阵填充薄壁结构的客车车身骨架 耐撞性能分析

石添华   

  1. 厦门金龙旅行车有限公司 福建省新能源汽车企业重点实验室
  • 出版日期:2023-09-30 发布日期:2023-09-30
  • 通讯作者: 石添华
  • 作者简介:石添华(1972-),男,高级工程师,研究方向为车辆工程,E-mail:shitianhua@xmjl.com。

Crashworthiness Analysis of Bus Body Skeleton Based on Lattice Filled Thin-walled Structures

SHI Tianhua   

  1. Fujian Province Key Laboratory of New Energy Vehicle Enterprises, Xiamen Golden Dragon Bus Company Limited, Xiamen 361022, China
  • Online:2023-09-30 Published:2023-09-30
  • Contact: SHI Tianhua

摘要: 点阵材料由于其优异的力学性能、轻质化以及较强的能量吸收性能,在提升汽车碰撞 安全性能等方面具有显著的效果。文章采用试验与仿真的方法对 BCC 点阵材料在压缩及弯曲 工况下力学特性进行深入研究,揭示了其变形机制及能量吸收特性;随后将其应用于客车纵 梁与立柱中,揭示了 BCC 点阵填充薄壁结构在提升整车碰撞安全性能中的优势。

关键词: 客车车身;点阵填充结构;耐撞性能;有限元分析

Abstract: Due to its excellent mechanical properties, lightweight and strong energy absorption properties, lattice materials have significant effects in improving automobile crash safety performance. In this paper, the mechanical properties of BCC lattice materials under compression and bending conditions are studied in depth by experimental and simulation methods, and their deformation mechanism and energy absorption characteristics are revealed. Subsequently, it is applied to the longitudinal beam and column of the bus, revealing the advantages of BCC dot matrix filled thin-walled structure in improving the collision safety performance of the whole vehicle.

Key words: Bus body; Lattice filled structures; Crashworthiness; Finite element analysis