An Adaptive Actuation Mechanism for Anthropomorphic Robot Hands

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Show simple item record Kontoudis, GP en Liarokapis, Minas en Vamvoudakis, KG en Furukawa, T en 2019-10-01T20:45:27Z en 2019-07-05 en
dc.identifier.citation Frontiers in Robotics and AI 6:6 pages Article number 47 05 Jul 2019 en
dc.identifier.issn 2296-9144 en
dc.identifier.uri en
dc.description.abstract This paper presents an adaptive actuation mechanism that can be employed for the development of anthropomorphic, dexterous robot hands. The tendon-driven actuation mechanism achieves both flexion/extension and adduction/abduction on the finger's metacarpophalangeal joint using two actuators. Moment arm pulleys are employed to drive the tendon laterally and achieve a simultaneous execution of abduction and flexion motion. Particular emphasis has been given to the modeling and analysis of the actuation mechanism. More specifically, the analysis determines specific values for the design parameters for desired abduction angles. Also, a model for spatial motion is provided that relates the actuation modes with the finger motions. A static balance analysis is performed for the computation of the tendon force at each joint. A model is employed for the computation of the stiffness of the rotational flexure joints. The proposed mechanism has been designed and fabricated with the hybrid deposition manufacturing technique. The efficiency of the mechanism has been validated with experiments that include the assessment of the role of friction, the computation of the reachable workspace, the assessment of the force exertion capabilities, the demonstration of the feasible motions, and the evaluation of the grasping and manipulation capabilities. An anthropomorphic robot hand equipped with the proposed actuation mechanism was also fabricated to evaluate its performance. The proposed mechanism facilitates the collaboration of actuators to increase the exerted forces, improving hand dexterity and allowing the execution of dexterous manipulation tasks. en
dc.publisher Frontiers Media en
dc.relation.ispartofseries Frontiers in Robotics and AI en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri en
dc.rights.uri en
dc.title An Adaptive Actuation Mechanism for Anthropomorphic Robot Hands en
dc.type Journal Article en
dc.identifier.doi 10.3389/frobt.2019.00047 en
pubs.volume 6 en
dc.rights.holder Copyright: The authors en
dc.rights.accessrights en
pubs.subtype Article en
pubs.elements-id 777415 en Engineering en Mechanical Engineering en
pubs.number 47 en
pubs.record-created-at-source-date 2019-08-12 en

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