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Measurement and evaluation for head injury of pedestrian impact using high-speed digital image correlation

机译：高速数字图像相关技术对行人碰撞头部伤害的测量与评估

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摘要

This paper presents the use of the high-speed digital image correlation (DIC) method for measurement of the head injury of a pedestrian in a vehicle-pedestrian collision experiment. Two simultaneous highspeed cameras captured the images of the impact process between the head-simulator and the car hood. The DIC method can achieve comprehensive analysis of the impact and help to reconstruct the impact process, from which not only the velocity, acceleration of the headform impactor, and the head injury criterion (HIC) but also the angular velocity and acceleration can be calculated. The possibility of using DIC to calculate of the neck injury criterion (NIC) is also discussed in this paper. Furthermore, the quantitative calculation of the full-field deformation of the car hood during the collision can also be achieved with the DIC method, which is of great practical value in optimizing automobile design and collision protection. A vehicle-pedestrian collision experiment is carried out, and the comprehensive results show that the DIC method can obtain accurate and comprehensive data in the calculation of human and vehicle collision.
机译：本文介绍了在行人碰撞实验中使用高速数字图像相关（DIC）方法测量行人头部受伤的方法。两个同时的高速摄像机捕获了头部模拟器和汽车引擎盖之间撞击过程的图像。 DIC方法可以实现对撞击的综合分析，并有助于重建撞击过程，不仅可以从中计算出头部冲击器的速度，加速度和头部受伤标准（HIC），还可以计算出角速度和加速度。本文还讨论了使用DIC计算颈部损伤标准（NIC）的可能性。此外，还可以通过DIC方法对汽车发动机罩在碰撞过程中的全场变形进行定量计算，这对于优化汽车设计和碰撞保护具有重要的实用价值。进行了人行车碰撞实验，综合结果表明，DIC方法在人车碰撞计算中可以获得准确，全面的数据。

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  • 来源
    《Optical engineering》 |2018年第7期|074102.1-074102.8|共8页
  • 作者

    Xizuo Dan; Yonghong Wang; Siyuan Bao; Junrui Li; Yue Hu; Lianxiang Yang;

  • 作者单位

    Hefei University of Technology, School of Instrument Science and Opto-Electronics Engineering, Hefei, China;

    Hefei University of Technology, School of Instrument Science and Opto-Electronics Engineering, Hefei, China;

    Hefei University of Technology, School of Instrument Science and Opto-Electronics Engineering, Hefei, China;

    Oakland University, School of Engineering and Computer Science, Department of Mechanical Engineering, Rochester, New York, United States;

    Hefei University of Technology, School of Instrument Science and Opto-Electronics Engineering, Hefei, China;

    Oakland University, School of Engineering and Computer Science, Department of Mechanical Engineering, Rochester, New York, United States;

  • 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

    digital image correlation; impact; head injury; rotation;

    机译：数字图像相关;影响;头部受伤;回转;

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