Stiffness control of bionic joint for a musculoskeletal leg mechanism
Book chapter
Lei, J, Tokhi, MO and Zhu, J (2016). Stiffness control of bionic joint for a musculoskeletal leg mechanism. in: Tokhi, MO and Virk, GS (ed.) Advances in Cooperative Robotics Proceedings of the 19th International Conference on CLAWAR 2016 Singapore World Scientific Publishing. pp. 481-489
Authors | Lei, J, Tokhi, MO and Zhu, J |
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Editors | Tokhi, MO and Virk, GS |
Abstract | © 2016, World Scientific Publishing Co. Pte Ltd. All rights reserved. Pneumatic artificial muscles (PAMs) have properties similar to a biological muscle, and are widely used in robotics. A musculoskeletal leg mechanism driven by PAMs is presented in this paper for a quadruped robot to achieve jumping movement with relatively higher-speed. There is contact force between foot and environment of robot with high-speed. In order to reduce the impact and improve the movement performance, the joint stiffness is controlled in real-time with contact stiffness and motion speed so as to reduce the impact due to contact force between the robot foot and the environment at high-speeds and improve the movement performance. A synchronous control method for position and stiffness is used. PID and BP neural network controls are developed for the antagonistic knee joint. Experimental investigations, providing a comparative assessment of performance of the PID and neural network approaches are carried out. A close match is achieved between theoretical analysis and experimental results. |
Page range | 481-489 |
Year | 2016 |
Book title | Advances in Cooperative Robotics Proceedings of the 19th International Conference on CLAWAR 2016 |
Publisher | World Scientific Publishing |
Place of publication | Singapore |
ISBN | 9789813149120 |
Publication dates | |
04 Aug 2016 | |
Publication process dates | |
Deposited | 03 Jan 2018 |
Accepted | 01 Jan 2016 |
Web address (URL) | http://www.worldscientific.com/worldscibooks/10.1142/10261 |
Journal | Advances in Cooperative Robotics: Proceedings of the 19th International Conference on Climbing and Walking Robots and the Support Technologies for Mobile Machines, CLAWAR 2016 |
Accepted author manuscript | License |
https://openresearch.lsbu.ac.uk/item/872xw
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