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Simulation analysis for the safety protection of cervical vertebra under unusual landing impact

机译：异常着陆冲击下颈椎安全防护的仿真分析

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摘要

The objective of this study was to analyse and evaluate the protection function and feasibility of two types of human neck safety equipment under unusual landings. Human head and neck dynamic responses were simulated by constructing a mechanical model of the human-seat system, which was equipped with two kinds of head support systems. The force and moment in the human neck were calculated. The protection function of the head support systems was evaluated according to the injury criteria HIC (head injury criterion) and Ny (neck injury criterion). Two kinds of safety equipment were used under unusual landing. The results of the experiment showed that Ny is smaller than the injury criterion limits under normal landings, and that the safety equipment provided effective protection. The safety equipment was confirmed to reduce the degree of neck injuries resulting from unusual landing impacts.
机译：这项研究的目的是分析和评估两种类型的人类颈部安全设备在异常着陆情况下的保护功能和可行性。通过构建配备有两种头部支撑系统的人体座椅系统的机械模型，模拟人的头部和颈部的动态响应。计算了人脖子上的力和力矩。根据伤害标准HIC（头部伤害标准）和Ny（颈部伤害标准）评估头部支撑系统的保护功能。在异常着陆下使用了两种安全设备。实验结果表明，在正常着陆条件下，Ny小于伤害标准限值，安全设备提供了有效的保护。确认该安全设备可减少因异常着陆而导致的颈部受伤程度。

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  • 来源
    《International journal of crashworthiness》 |2011年第5期|p.469-473|共5页
  • 作者

    Honglei Ma; Bingkun Liu; Shizhong Jiang; Yanqiang Bai; Yanhua Xiao; Chengwen Tan; Xiaodong Yu; Huiliang Du;

  • 作者单位

    State Key Lab of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China;

    rnState Key Lab of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China;

    rnState Key Lab of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China;

    rnState Key Lab of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China;

    rnState Key Lab of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China;

    rnBeijing Institute of Technology, Beijing, China Department of Automobile Engineering, Tsinghua University, Beijing, China;

    rnBeijing Institute of Technology, Beijing, China Department of Automobile Engineering, Tsinghua University, Beijing, China;

    rnBeijing Institute of Technology, Beijing, China Department of Automobile Engineering, Tsinghua University, Beijing, China;

  • 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

    landing impact; impact injury; impact protection;

    机译：着陆影响;撞击伤;冲击防护;

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