由于运动表面的滚动阻力造成的轮椅滚筒的功率损失
Disability and rehabilitation. Assistive technology
|September 27, 2024
概括
轮设计通过影响滚动阻力,显著影响手动轮椅的效率. 优化轮可以减少能量损失,并提高轮椅运动中的运动表现.
科学领域:
- 生物力学 生物力学
- 运动工程 运动工程
- 康复工程 康复工程
背景情况:
- 与其他人类运动相比,手动轮椅推进具有较低的机械总效率.
- 轮椅推进过程中的能量损失归因于轮椅的部件,特别是滚动阻力.
- 轮的设计和与表面的相互作用极大地影响了整体滚动阻力.
研究的目的:
- 为了量化由于滚动阻力导致不同轮消散的功率.
- 分析不同速度,负载和地形对轮功耗的影响.
- 评估轮对手动轮椅推进的能源消耗的贡献.
主要方法:
- 在两个室内运动面 (Parquet,Taraflex) 上测试了四个不同的轮 (形状,直径,材料各不相同).
- 在四种不同的速度 (0.51.5 m/s) 和四种负载条件 (50200 N) 下评估功耗消耗.
- 对于每个轮配置,与滚动阻力相关的测量能量损失.
主要成果:
- 在Parquet上在0.5m/s和50N负载下观察到的滑板车的最小功耗 (W).
- 在Taraflex上以1.5 m/s和200 N负载记录的滑板车的最大平均功耗 (W).
- 板表面的功耗比Taraflex要低;球形和万轮轮的功耗比其他轮的功耗要低.
结论:
- 轮的选择对于最小化滚动阻力和提高手动轮椅推进效率至关重要.
- 转轮轮散发的动力是轮椅使用者的整体能源需求的一个重要因素.
- 对轮设计的进一步研究可以提高轮椅运动中的机械总效率和运动表现.
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