人形机器人防摔轨迹的全身动力学与墙壁支的防摔轨迹生成
Weilong Zuo1,2, Junyao Gao1,2, Jiongnan Liu1,2
1School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China.
Biomimetics (Basel, Switzerland)
|April 26, 2024
概括
人形机器人现在可以使用周围的物体进行平衡,以防止跌倒. 这项研究引入了一种全身运动控制的新方法,可以显著减少墙壁着陆期间的冲击力.
科学领域:
- 机器人技术 机器人技术 机器人技术
- 控制系统 控制系统
- 人形机器人动力学 人形机器人动力学
背景情况:
- 在人类环境中运行的人形机器人面临着稳定性和防摔的挑战.
- 利用环境对象为保持机器人平衡提供了一个潜在的解决方案.
研究的目的:
- 开发和验证人形机器人全身运动控制策略,以利用环境对象获得稳定性.
- 为了减少冲击力,并确保在与墙壁等障碍物相互作用时安全着陆.
主要方法:
- 建立了机器人状态方程,使用可变高度倒置摆形模型.
- 实现了在线轨迹优化与模型预测控制和手臂姿势分布式多边形方法.
- 开发了一种全身运动控制的多目标成本函数,包括动力学,质量中心,端效应器,摩擦和压力中心的约束.
主要成果:
- 模拟显示,墙壁撞击时最大加速度减少到69.1m/s2,与自由落体相比,撞击力显著降低.
- 实际实验表明,稳定的墙壁着陆与冲击力在机器人可以接受的范围内.
结论:
- 拟议的全身运动控制方法有效地使人形机器人能够利用环境对象进行稳定的着陆.
- 该方法通过减轻冲击力来提高机器人的安全性和在动态的人类环境中的强度.
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