在零重力,低压环境下,EVA手套的振动传输特性
Yanpu Mu1, Hao Fu1,2, Yuefeng Li1
1Harbin Institute of Technology School of Mechatronics Engineering, Harbin, China.
Ergonomics
|July 9, 2025
概括
车外活动 (EVA) 手套在模拟空间条件下减少手部振动,但不能减少手臂振动. 手套的压力和握力显著影响振动传输,更高的握力削弱了手套的有效性.
科学领域:
- 人类因素工程 人类因素工程
- 生物力学 生物力学
- 太空飞行生理学 太空飞行生理学
背景情况:
- 宇航员在使用工具时,在车外活动 (EVA) 中经历了显著的手传输振动.
- 通过宇航员的手臂系统了解振动传输对于减轻不适和潜在伤害至关重要.
- 现有的研究往往侧重于陆地条件,需要在模拟空间环境中进行研究.
研究的目的:
- 在模拟的零重力,低压环境中,提出和验证手传输振动的直接测量方法.
- 为了评估车外活动 (EVA) 手套的减振效果.
- 研究EVA手套,内部压力和握力对人类手臂系统内振动传输特征的影响.
主要方法:
- 在模拟的零重力,低压环境中开发了一种手动传递振动的直接测量方法.
- 招募了12名受试者来模拟宇航员使用电动螺丝刀在模拟的车外活动 (EVA) 环境中.
- 在手臂系统的多个点测量了对振动的暴露,分析了EVA手套,手套内部压力和不同握力的影响.
主要成果:
- 车外活动手套 (EVA) 显示出降低传递到手部的振动的能力.
- 对手腕,上臂和前臂的振动传输没有被EVA手套显著削弱.
- 内部手套压力对各种手臂段的振动传输产生了重大影响.
- 增加的握力降低了EVA手套的减振效果,揭示了握力,压力和手套类型之间的显著相互作用.
结论:
- EVA手套对手部传递的振动提供部分保护,但对整个手臂的效果不那么好.
- 手套的压力和握力是调节振动传输的关键因素,突出了优化手套设计和使用协议的必要性.
- 这些发现强调了在太空工具操作的背景下,外部力量,防护设备和人类生理学之间的复杂相互作用.
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