Self-Powered Flywheel-Infinitely Variable Transmission Actuator for Artificial Knee Joints

The efficient energetics of human walking could possibly be used to fulfill the total power requirement of human knee, without requiring any additional sources of energy. This study intends to addresses this issue by examining the idea of a novel self-powered actuator for artificial knee joints of w...

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Bibliographic Details
Published in:International journal of automation technology 2017-05, Vol.11 (3), p.361-367
Main Authors: Aló, Roberta, Bottiglione, Francesco, Mantriota, Giacomo
Format: Article
Language:English
Subjects:
Actuators
Flywheels
Gait
Joints (anatomy)
Knee
Walking
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Summary:The efficient energetics of human walking could possibly be used to fulfill the total power requirement of human knee, without requiring any additional sources of energy. This study intends to addresses this issue by examining the idea of a novel self-powered actuator for artificial knee joints of wearable robots. The self-powered Flywheel-Infinitely Variable Transmission (F-IVT) is an actuator whose only source of power is a flywheel that stores and delivers energy from and to the knee joint by changing the speed ratio of the IVT according to the phase of the gait cycle. This study evaluates the efficacy of this novel actuator by estimating the amount of energy it can deliver to the knee joint while the subject walks on level ground at varied speeds.
ISSN:1881-7629
1883-8022
DOI:10.20965/ijat.2017.p0361