Efficient Design of a Torque Actuator for Lower Extremity Exoskeleton Based on Muscle Function Analysis

Abstract:

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Several lower extremity exoskeletal systems have been developed for augmentation purpose. Common actuators, have important drawbacks such as complexity, and poor torque capacities. The main scope of this research is to propose a series elastic actuator for lower extremity exoskeletal system which was designed based on muscle functional analysis. For this purpose, a biomechanical framework consisting of a musculoskeletal model with ten degrees-of-freedom actuated by eighteen Hill-type musculotendon actuators per leg is utilized to perform the muscle functional analysis for common daily human activities. The simulation study illustrated functional differences between flexor and extensor muscles and the results were utilized for efficient design of the series elastic torque actuator employed in lower extremity exoskeletons.

Info:

Periodical:

Advanced Materials Research (Volumes 328-330)

Edited by:

Liangchi Zhang, Chunliang Zhang and Zichen Chen

Pages:

1041-1044

DOI:

10.4028/www.scientific.net/AMR.328-330.1041

Citation:

S. Safavi et al., "Efficient Design of a Torque Actuator for Lower Extremity Exoskeleton Based on Muscle Function Analysis", Advanced Materials Research, Vols. 328-330, pp. 1041-1044, 2011

Online since:

September 2011

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Price:

$35.00

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