arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2006.13374cs.RO
收藏

碰撞感知操作的多模态轨迹优化

Multi-mode Trajectory Optimization for Impact-aware Manipulation

School of Informatics, University of Edinburgh(爱丁堡大学信息学院);Honda Research Institute Europe (HRI-EU)(本田欧洲研究所);Shenzhen Institute for Artificial Intelligence and Robotics for Society (AIRS), The Chinese University of Hong Kong (Shenzhen)(香港中文大学(深圳)深圳市人工智能与机器人研究院)

Theodoros Stouraitis, Lei Yan, João Moura, Michael Gienger, Sethu Vijayakumar

摘要:

从自由运动到接触的过渡是机器人技术中的一个具有挑战性的问题,部分原因是其混合性质。此外,在运动规划水平上忽略冲击的影响通常会导致难以控制的冲击接触力。在本文中,我们介绍了一种碰撞感知的多模式轨迹优化(TO)的方法,结合了混合动力学和混合控制在一个连贯的方式。一个关键的概念是一个明确的接触力传递模型中的TO方法。这允许同时优化接触力、接触定时、连续运动轨迹和顺应性,同时满足任务约束。我们比较我们的方法对标准的合规性控制和物理模拟中的影响不可知的TO方法。此外,我们实验验证所提出的方法与机器人机械手的任务,停止大动量物体。

英文摘要:

The transition from free motion to contact is a challenging problem in robotics, in part due to its hybrid nature. Additionally, disregarding the effects of impacts at the motion planning level often results in intractable impulsive contact forces. In this paper, we introduce an impact-aware multi-mode trajectory optimization (TO) method that combines hybrid dynamics and hybrid control in a coherent fashion. A key concept is the incorporation of an explicit contact force transmission model in the TO method. This allows the simultaneous optimization of the contact forces, contact timings, continuous motion trajectories and compliance, while satisfying task constraints. We compare our method against standard compliance control and an impact-agnostic TO method in physical simulations. Further, we experimentally validate the proposed method with a robot manipulator on the task of halting a large-momentum object.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑