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Erschienen in: Intelligent Service Robotics 3/2022

19.02.2022 | Original Research Paper

Dynamic performance of a series elastic actuator with variable stiffness logarithmic spiral spring

verfasst von: Wisam T. Abbood, Somer M. Nacy, George Youssef, Oday I. Abdullah

Erschienen in: Intelligent Service Robotics | Ausgabe 3/2022

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Abstract

The present paper investigates a variable stiffness elastic actuator, which was adjusted using a special-purpose mechanism. A model was derived to obtain the response of the actuator. Concurrently, an experimental setup was designed and manufactured to validate the theoretical model. A novel control scheme is adopted to enhance the response through stiffness variation. Results showed that the time of response is reduced by 73% as compared to that of a constant stiffness actuator. In order to find the effectiveness of the proposed control scheme, a PID controller is implemented, where the response time was reduced by 58% using the former.

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Metadaten
Titel
Dynamic performance of a series elastic actuator with variable stiffness logarithmic spiral spring
verfasst von
Wisam T. Abbood
Somer M. Nacy
George Youssef
Oday I. Abdullah
Publikationsdatum
19.02.2022
Verlag
Springer Berlin Heidelberg
Erschienen in
Intelligent Service Robotics / Ausgabe 3/2022
Print ISSN: 1861-2776
Elektronische ISSN: 1861-2784
DOI
https://doi.org/10.1007/s11370-022-00413-x

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