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一个TEC冷却软机器人,由扭弦执行器驱动
Shun Zhao1, Xuewei Lu1, Kunyang Wang1,2,3
1Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130025, China.
Biomimetics (Basel, Switzerland)
|June 27, 2023
概括
这项研究引入了人工肌肉的新冷却系统,使软机器人能够实现更高的运动频率. 该系统还允许自传感功能,提高机器人的性能和控制.
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
- 生物模拟学是一种生物模拟学.
背景情况:
- 人工肌肉为生物机器人提供了优势,但落后于生物肌肉性能.
- 扭曲聚合物执行器 (TPA) 提供高能效和大的应变/应力输出,但受到热敏度的限制.
- 现有的使用TPA的软机器人由于热限制,其运动频率较低.
研究的目的:
- 开发一个简单的,轻量级的,低成本的,自传感软机器人,由TPAs提供动力.
- 通过有效的冷却系统,提高TPA驱动机器人的运动频率.
- 根据收缩长度和阻力研究TPA的自我感应能力.
主要方法:
- 热电冷却器 (TEC) 和温度传感器的集成,以创建一个闭环温度控制系统.
- 保持机器人的内部温度在5°C以快速冷却TPA.
- 通过将TPA收缩长度和电阻与机器人运动相关联,开发了一种自我传感机制.
主要成果:
- 开发的闭环冷却系统使TPA驱动的机器人能够达到1赫兹的运动频率.
- 自传感软机器人表现出很好的准确性,其平方根平均误差小于0.01Hz的测量振幅的3.89%.
- 该研究成功验证了TPAs的自身动力学性能和改进的操作频率.
结论:
- 使用TEC的新冷却方法显著提高了TPA驱动软机器人的运动频率.
- 拟议的基于TPA的自传感机制为机器人运动提供了准确的反.
- 这项研究有助于开发更有能力,更高效的生物机器人.
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