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Dynamic Lifting Motion of Humanoid Robots

Abstract : This paper describes a motion generation method for dynamic lifting by a humanoid robot. The proposed technique suggests the possibility of taking advantage of the whole body motion in order to facilitate the lifting movement. In particular, the idea is to perform a preliminary motion in order to generate a momentum which is instantaneously transferred to the object as an impulsive force. This allows the humanoid to lift up an object that could not be lifted up only by continuous force. However an impulsive force may make the humanoid unstable. Then, we propose to set the center of percussion (CoPn) of the whole system at the center of the support polygon of the humanoid when it lifts up the object. We also propose a design method of a preliminary motion of the humanoid that generates a sufficient momentum to lift up an object without any slip, tumble and hop of the whole system. The effectiveness of the proposed method is confirmed by simulation and experiment.
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https://hal-lirmm.ccsd.cnrs.fr/lirmm-00536325
Contributor : Jean-Rémy Chardonnet <>
Submitted on : Monday, November 15, 2010 - 10:29:49 PM
Last modification on : Thursday, March 18, 2021 - 7:22:01 PM
Long-term archiving on: : Wednesday, February 16, 2011 - 3:12:35 AM

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Hitoshi Arisumi, Jean-Rémy Chardonnet, Abderrahmane Kheddar, Kazuhito Yokoi. Dynamic Lifting Motion of Humanoid Robots. ICRA'07: International Conference on Robotics and Automation, Apr 2007, Rome, Italy. pp.2661-2667. ⟨lirmm-00536325⟩

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