形状记忆合金管驱动器本质上允许机器人手指在力控制下进行内部流体冷却
Craig J Ades1, Savas Dilibal2, Erik D Engeberg1
1Florida Atlantic University, Boca Raton, Florida, United States of America.
概括
这项研究引入了一种新的机器人手指,使用具有内部冷却的形状记忆合金 (SMA) 管. 这种设计可以实现精确的力控制和高强度与重量比,用于先进的机器人和假肢应用.
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:
- 形状记忆合金 (SMA) 提供了独特的执行功能.
- 传统的SMA执行器由于散热而面临限制.
- 机器人抓手需要精确的力量控制和轻量级的设计.
研究的目的:
- 设计和评估一种由流体冷却的SMA管驱动的新型机器人手指.
- 开发一种非线性力控制器,用于精确的执行.
- 为了评估SMA机器人手指的性能,带宽和强度与重量比.
主要方法:
- 使用SMA管用于与集成的内部流体冷却的执行.
- 开发了一种非线性控制器,用于精确调节力.
- 为了评估性能,进行了鼻状,步骤响应和干扰排斥实验.
主要成果:
- 实现精确的力控制,在6rads-1带宽以下最小化错误.
- 证明了有效的干扰排斥能力.
- 机器人手指具有很高的强度与重量比 (4,35N力,30g质量).
结论:
- 内部液体冷却可提高SMA执行器带宽和应用潜力.
- 新的机器人手指设计使轻量级,高强度的机器人和假肢应用成为可能.
- 这项技术推动了复杂的可穿戴设备的开发.
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