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柔软的曲实现了脉冲喷射水下机器人的一致的大幅度变形
Alexander O'Loughlin1, Samuel Simmons1, Melike Kurt1
1Maritime Engineering Group, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, United Kingdom.
Bioinspiration & biomimetics
|August 14, 2025
概括
这项研究引入了一种新的软机器人方法,用于水下推进,灵感来自水母. 灵活的管子曲以产生推力,使机器人平台能够高效,可重复的脉冲喷射.
科学领域:
- 机器人技术 机器人技术 机器人技术
- 流体动力学 流体动力学
- 材料科学 材料科学 材料科学
背景情况:
- 水母利用大振幅,低频钟变形来实现高效的脉冲喷射.
- 钟边缘的局部变形是水母推进的关键.
- 现有的软机器人推进方法往往缺乏效率和稳定性.
研究的目的:
- 开发一种新的软机器人水下脉冲喷射方法.
- 为了利用可控的材料不稳定性 (曲) 在柔性管中产生推力.
- 为了证明可重复的,大幅度的变形对于机器人运动.
主要方法:
- 开发了一种柔软的机器人执行器,使用灵活的管子通过内部水压曲.
- 通过改变内部水压来控制软材料的不稳定性.
- 将执行器集成到软机器人平台中进行水下推进测试.
主要成果:
- 实现了可重复的大幅度变形,钟曲角为29 ± 1.5°.
- 在0.2-1.1赫兹的频率范围内运行系统.
- 推进了一个柔软的机器人平台,即时速度高达5厘米/秒.
- 经过1000个压力周期,没有明显的性能下降.
结论:
- 这种新的软机器人脉冲喷射方法有效地模仿了水母的推进.
- 柔性管的可控曲提供了一个可行的机制,可以有效地在水下产生推力.
- 开发的执行器显示了对强大和耐用的软机器人机动运动的承诺.
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