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在对向前曲的头部冲击时,对硬帽性能进行实验性评估
Arthur Santos1, James Sorce2, Mohammadhadi Masoudi1
1Department of Engineering, University of North Florida, Jacksonville, FL, USA.
International biomechanics
|September 17, 2025
概括
防护帽可能无法保护建筑工人在向前曲的头部冲击中免受创伤性脑损伤. 目前的测试方法无法在现实场景中充分评估保护.
科学领域:
- 职业安全与健康问题 职业安全与健康问题
- 生物力学 生物力学
- 保护设备工程 保护设备工程
背景情况:
- 创伤性脑损伤 (TBI) 是建筑行业的一个重大风险,通常是由于前向曲的头部冲击造成的.
- 当前的硬帽认证测试,在垂直配置中执行,可能不会准确地反映现实世界的影响场景.
- 现有的防护装备可能不足以应对向前曲的冲击,需要进一步调查.
研究的目的:
- 为了评估商用安全帽在不同头部方向下减轻冲击的有效性.
- 为了比较直立和向前曲的撞击条件之间的动力学结果,例如加速.
- 为了确定当前的认证测试是否充分代表了对向前曲的头部冲击的保护.
主要方法:
- 测试了六个商业上可用的硬帽.
- 使用3.6公斤的质量垂直地落在Hybrid III第50百分位数的头部/部形状上进行了冲击.
- 测试是在两个头部方向进行的:直立和30°向前曲.
主要成果:
- 对向前曲的头部方向的冲击导致与直立冲击相比,角度加速明显更高.
- 当头部处于向前曲的位置时,硬帽在减轻角度加速方面表现出较低的有效性.
- 在直立和向前曲的测试条件下,在硬帽性能之间观察到不良的相关性.
结论:
- 目前的硬帽认证测试仅基于直立冲击,可能无法提供足够的信息来选择前向曲的头部冲击的防护装备.
- 雇主和工人可能缺乏必要的数据来为所有潜在的工作场所影响场景选择最安全的安全帽.
- 需要进一步的研究和修订的测试协议,以确保在职业环境中有效保护TBI.
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