用于重新配置充气束机器人的刚度变化
Brian H Do1, Shuai Wu1, Ruike Renee Zhao1
1Department of Mechanical Engineering, Stanford University, Stanford, California, USA.
Soft robotics
|April 29, 2024
概括
软机器人的可变刚度允许通过激活离散关节来精确控制形状. 这种方法将可控制的自由度与操作脱,使成长中的机器人能够进行复杂的运动.
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:
- 软机器人的主动形状控制是很困难的,因为自由度 (DOF) 有限,在压缩下曲.
- 当前软机器人设计面临着整合众多执行器的挑战,限制了它们的灵巧性.
研究的目的:
- 为了证明可变刚度如何能够在软机器人中实现增强的形状控制.
- 要将可控制的DOF数量与操作度数量 (DOA) 的数量脱.
主要方法:
- 使用嵌入式正压层阻塞,用于充气束机器人的动态刚性变化.
- 开发了有限元模型来指导机器人设计和制造.
- 制造了一种多段恒定膨胀光束机器人.
主要成果:
- 动态变化的刚度选择性地激活了离散关节,重新配置了一个执行器的输出.
- 证明了刚性变化与生长机器人和尖端变化的兼容性.
- 通过硬度调制实现了工作空间的增加和新的执行模式.
结论:
- 可变刚度是软连续机器人先进形状控制的有效策略.
- 积极压力层阻塞为在生长机器人中实施刚性控制提供了一种可行的方法.
- 这种方法显著扩大了软机器人系统的功能和设计可能性.
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