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Title: Impedance adaptation for optimal robot-environment interaction
Authors: Ge, S.S. 
Li, Y.
Wang, C.
Keywords: impedance adaptation
optimal control
robot-environment interaction
Issue Date: 1-Feb-2014
Citation: Ge, S.S., Li, Y., Wang, C. (2014-02-01). Impedance adaptation for optimal robot-environment interaction. International Journal of Control 87 (2) : 249-263. ScholarBank@NUS Repository.
Abstract: In this paper, impedance adaptation is investigated for robots interacting with unknown environments. Impedance control is employed for the physical interaction between robots and environments, subject to unknown and uncertain environments dynamics. The unknown environments are described as linear systems with unknown dynamics, based on which the desired impedance model is obtained. A cost function that measures the tracking error and interaction force is defined, and the critical impedance parameters are found to minimise it. Without requiring the information of the environments dynamics, the proposed impedance adaptation is feasible in a large number of applications where robots physically interact with unknown environments. The validity of the proposed method is verified through simulation studies. © 2013 © 2013 Taylor & Francis.
Source Title: International Journal of Control
ISSN: 00207179
DOI: 10.1080/00207179.2013.827799
Appears in Collections:Staff Publications

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