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用电驱动的相位过渡执行器为软机器人设计提供动力
1University of Coimbra, CEMMPRE, Department of Mechanical Engineering, Coimbra, Portugal.
Nature communications
|April 25, 2025
概括
这项研究引入了一种使用液态气相转换与水的电动软执行器,实现高应变和加压率. 它提供低压操作和集成到软机器人中.
科学领域:
- 机器人技术 机器人技术 机器人技术
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
背景情况:
- 传统的软执行器通常依赖于静电或电热方法,限制了它们的潜力.
- 液态气相转换执行器在速度和控制方面面临着挑战.
研究的目的:
- 开发一种具有性能改进的液态气相过渡电软执行器.
- 为了实现低压操作,提高软机器人的可控性和可扩展性.
主要方法:
- 使用水作为工作流体,由灵活的线圈式加热元件提供动力.
- 开发了一种工作流体选择方法,用于特定应用的优化.
- 实施了非线性控制方法,以最大限度地减少振动和控制延迟.
主要成果:
- 达到超过16%/s的延展率和100kPa/s的加压率.
- 在高达24V的电压下,证明了超过50N的阻塞力.
- 成功将执行器集成到仿生手和四足机器人中.
结论:
- 液态气相转换电软执行器为高性能软机器人提供了可行的替代方案.
- 拟议的方法增强了执行器的能力,并使各种机器人应用成为可能.
- 这项技术推动了可控制,可扩展和低压软机器人系统的发展.
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