一个由软人工肌肉驱动的微机器人的控制飞行
Yufeng Chen1,2,3, Huichan Zhao4, Jie Mao5,6
1John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA. yufengc@mit.edu.
Nature
|November 6, 2019
概括
研究人员使用柔软的人造肌肉开发出昆虫规模的空中机器人. 这些机器人实现了稳定的飞行,
科学领域:
- 机器人技术
- 材料科学
- 生物模拟学
背景情况:
- 昆虫在杂乱的环境中使用低惯性和有弹性的生物结构.
- 目前的昆虫规模机器人具有硬的执行器,
- 软执行器具有抗冲击能力,但缺乏足够的功率密度和飞行控制.
研究的目的:
- 开发一种以软人工肌肉为动力的昆虫级空中机器人.
- 通过软执行器驱动的机器人实现稳定的上升和悬浮飞行.
- 为了证明软机器人飞行器的碰撞弹性和恢复.
主要方法:
- 使用多层介电弹性体执行器 (100 mg,500 Hz共振,600 W/kg功率密度).
- 开发了克服软执行器挑战的方法,如非线性传导和动态曲.
- 采用了开放循环和闭环飞行控制策略,依赖于机外动力和运动捕获.
主要成果:
- 证明了被动稳定的上升飞行和闭环悬浮飞行.
- 机器人成功地感知并抵御与障碍物和其他车辆的碰撞.
- 通过软执行器实现足够的功率密度和带宽以控制飞行.
结论:
- 软的人造肌肉可以使机器人灵活,耐碰撞.
- 这项工作为下一代软机器人系统铺平了道路.
- 有软执行器的仿生设计为强大的空中机器人提供了有前途的方法.
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