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Crash behavior of thin-Walled box beams with complex sinusoidal relief patterns

机译:具有复杂正弦曲线起伏特征的薄壁箱形梁的碰撞行为

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摘要

This paper proposes a new automotive box-beam crash abstorber design with sinusoidal patterns embedded on the beam surfaces. Six different types of surface patterns were initially proposed and a total of 43 samples were simulated using the commercial pre-processor HyperCrash™ and the commercial explicit FEM solver RADIOSS™. The aim of the study is to improve energy absorption properties of the beams by controlling the wavelength of progressive buckle formations and obtaining denser collapse formations. It was found that the relief patterns could be used effectively to change the buckling modes and reduce the buckle wavelength. A maximum of 42 percent increase in the amount of total energy absorbed and an increase in the energy efficiency factor from 1.08 to 1.54 was observed moving from the reference model to the best design so far. This research may possibly pave new avenues in crash absorber design.
机译:本文提出了一种新的汽车箱形梁防撞减震器设计,在梁表面嵌入了正弦曲线图案。最初提出了六种不同类型的表面图案,并使用商用预处理器HyperCrash™和商用显式FEM求解器RADIOSS™来模拟总共43个样本。该研究的目的是通过控制渐进屈曲构造的波长并获得更致密的塌陷构造来改善光束的能量吸收特性。已经发现,浮雕图案可以有效地用于改变屈曲模式并减小屈曲波长。从参考模型到目前的最佳设计,观察到吸收的总能量最多增加了42%,能量效率系数从1.08增加到1.54。这项研究可能会为减震器设计铺平新的道路。

著录项

  • 来源
    《Thin-Walled Structures》 |2012年第2012期|p.217-223|共7页
  • 作者单位

    Enzo Ferrari' Faculty of Engineering, Department of Mechanical and Civil Engineering, University of Modena and Reggio Emilia, Via Vignolese 905, 41125, Modena. Italy;

    Enzo Ferrari' Faculty of Engineering, Department of Mechanical and Civil Engineering, University of Modena and Reggio Emilia, Via Vignolese 905, 41125, Modena. Italy;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    crash absorbers; box beams; automotive crash analysis;

    机译:减震器;箱形梁汽车碰撞分析;

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