可穿戴流体系统的纤维
Michael Smith1, Vito Cacucciolo1,2, Herbert Shea1
1Soft Transducers Laboratory (LMTS), École Polytechnique Fédérale de Lausanne, Neuchâtel, Switzerland.
Science (New York, N.Y.)
|March 30, 2023
概括
研究人员开发出无声,可伸缩的基于纤维的可穿戴式液体. 这些可以实现集成织系统的肌肉支持,温度调节和触觉反,而不需要重的部件.
科学领域:
- 织工程
- 可穿戴技术
- 流体系统
背景情况:
- 织品中的压力流体电路提供了肌肉支持,温度调节和触觉反的潜力.
- 由于噪音和振动,传统的刚性不适合用于可穿戴设备.
- 对于可穿戴的流体应用,需要紧,无声和集成的压力源.
研究的目的:
- 开发可以无地集成到织品中的新型流体.
- 实现无可穿戴的流体系统,并增强设计自由.
- 展示这些在各种可穿戴技术中的应用.
主要方法:
- 使用嵌入在弹性体管中的连续螺旋电极制造可伸缩的流体.
- 使用充电注入电气动力学来产生无声压力.
- 性能,包括压力产生和流量.
主要成果:
- 开发的基于纤维的可以无声产生压力, 克服传统的局限性.
- 每米纤维产生100千帕斯卡尔的压力, 流量高达每分钟55毫升.
- 实现了每公斤15瓦的功率密度,证明了高效的运行.
- 在可穿戴触觉,机械活性织物和温度调节织品中得到了应用.
结论:
- 可伸缩纤维流体代表了无可穿戴流体的重大进步.
- 这些为织品集成先进功能提供了相当大的设计自由.
- 这项技术有望为下一代智能织品提供多种应用.
相关概念视频
01:14Fluid Pressure
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In mechanical engineering, fluid pressure plays a critical role in designing systems that utilize liquid flow, such as hydraulic systems, pumps, and valves. When designing these systems, engineers must ensure they can withstand the forces created by fluid pressure to avoid damage or failure.
According to Pascal's law, a fluid at rest will generate equal pressure in all directions. This pressure is measured as a force per unit area, and its magnitude depends on the fluid's specific...
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01:27Types of Fluids
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Fluids can be classified into Newtonian and non-Newtonian fluids based on their response to shear stress. Newtonian fluids have a linear relationship between shear stress and the shear strain rate, following Newton's law of viscosity. Their viscosity remains constant regardless of the shear rate, making their behavior predictable and easier to analyze. Common examples include water, air, oil, and gasoline.
In contrast, non-Newtonian fluids do not follow Newton's law of viscosity, and...
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