基层泥赛道赛车碰撞中的驾驶员头部动力学:试点分析
Sophia R Zoch1, Tanner M Filben1, N Stewart Pritchard1
1Department of Biomedical Engineering, Wake Forest School of Medicine, USA; School of Biomedical Engineering and Sciences, Virginia Tech - Wake Forest University, USA.
Accident; analysis and prevention
|July 8, 2023
概括
赛车运动中的碰撞可能会导致头部显著加速. 这项研究量化了基层赛车中的头部和车辆运动,发现轨道接触和非水平力是常见的,并且与更高的头部冲击有关.
科学领域:
- 运动医学 运动医学
- 生物力学 生物力学
- 赛车运动安全 赛车运动安全
背景情况:
- 赛车运动员在碰撞时面临头部加速.
- 关于碰撞负载的数据有限,特别是在基层赛车中.
- 了解头部运动对于提高驾驶员安全至关重要.
研究的目的:
- 在碰撞时量化和描述驾驶员头部和车辆动力学.
- 分析开放式车轮草根泥赛道赛车中的撞车数据.
- 确定影响头部加速暴露的因素.
主要方法:
- 用定制的口腔传感器对七名驾驶员 (16-22岁) 进行了仪器仪表.
- 配备事故数据记录器 (IDR) 的车辆用于加速测量.
- 通过电影审查和传感器数据分析了41起碰撞事件 (139个接触场景).
主要成果:
- 平均头顶结果线性加速度 (PLA):12.3g (95百分位数:37.3g).
- 头部峰值旋转加速 (PRA) 的中位数为626rad/s2 (第95百分位数为1799rad/s2).
- 头部中位峰值旋转速度 (PRV):8.92rad/s (95百分位数:18.6rad/s).
- 与轨道和非水平主要力方向 (PDOF) 的接触频繁 (70-71%).
- 左侧冲击,轨道接触和非水平的PDOF与更高的头部动力学相关.
结论:
- 这项试点研究提供了关于基层赛车运动中头部加速的关键数据.
- 结果可以为更大的研究和基于证据的驾驶员安全干预提供信息.
- 特定的碰撞特征 (轨道接触,PDOF) 与头部动力学增加有关.
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