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京东 11.11 红包
Variable admittance control preventing undesired oscillating behaviors...变导纳振荡问题
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Variable admittance control preventing undesired oscillating behaviors in physical human-robot interaction 摘要: Admittance control is a widely used approach for guaranteeing a compliant behavior of the robot in physical human-robot interaction. When an admittance-controlled robot is coupled with a human, the dynamics of the human can cause deviations from the desired behavior of the robot, mainly due to a stiffening of the human arm, and thus generate high-frequency unsafe oscillations of the robot. In this paper we present a novel methodology for detecting the rising oscillations in the human-robot interaction. Furthermore, we propose a passivity-preserving strategy to adapt the parameter of the admittance control in order to get rid of the high-frequency oscillations and, when possible, to restore the desired interaction model. A thorough experimental validation of the proposed strategy is performed on a group of 26 users performing a cooperative task. 当导纳控制机器人与人耦合时,人的动力学会导致机器人的行为偏离预期的行为,主要是由于人手臂的僵硬,从而产生机器人的高频不安全振荡。 在本文中,研究人员提出了一种新的方法来检测人机交互中的上升振荡。 此外,作者提出了一种被动保持策略来调整导纳控制的参数,以消除高频振荡,并在可能的情况下恢复所需的交互模型。 对执行合作任务的 26 个用户组对所提出的策略进行了彻底的实验验证。 论文链接:https://ieeexplore.ieee.org/abstract/document/8206207/media#media 实验范式参考
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