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Concepts of Softness for Legged Locomotion and their Assessment

Seyfarth, André ; Radkhah, Kathayon ; Stryk, Oskar von (2015)
Concepts of Softness for Legged Locomotion and their Assessment.
In: Soft Robotics - Transferring Theory to Application
Buchkapitel, Bibliographie

Kurzbeschreibung (Abstract)

In human and animal locomotion, compliant structures play an essential role in the body and actuator design. Recently, researchers have started to exploit these compliant mechanisms in robotic systems with the goal to achieve the yet superior motions and performances of the biological counterpart. For instance, compliant actuators such as series elastic actuators (SEA) can help to improve the energy efficiency and the required peak power in powered prostheses and exoskeletons. However, muscle function is also associated with damping-like characteristics complementing the elastic function of the tendons operating in series to the muscle fibers. Carefully designed conceptual as well as detailed motion dynamics models are key to understanding the purposes of softness, i.e. elasticity and damping, in human and animal locomotion and to transfer these insights to the design and control of novel legged robots. Results for the design of compliant legged systems based on a series of conceptual biomechanical models are summarized. We discuss how these models compare to experimental observations of human locomotion and how these models could be used to guide the design of legged robots and also how to systematically evaluate and compare natural and robotic legged motions.

Typ des Eintrags: Buchkapitel
Erschienen: 2015
Autor(en): Seyfarth, André ; Radkhah, Kathayon ; Stryk, Oskar von
Art des Eintrags: Bibliographie
Titel: Concepts of Softness for Legged Locomotion and their Assessment
Sprache: Englisch
Publikationsjahr: 2015
Verlag: Springer Verlag
Buchtitel: Soft Robotics - Transferring Theory to Application
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Kurzbeschreibung (Abstract):

In human and animal locomotion, compliant structures play an essential role in the body and actuator design. Recently, researchers have started to exploit these compliant mechanisms in robotic systems with the goal to achieve the yet superior motions and performances of the biological counterpart. For instance, compliant actuators such as series elastic actuators (SEA) can help to improve the energy efficiency and the required peak power in powered prostheses and exoskeletons. However, muscle function is also associated with damping-like characteristics complementing the elastic function of the tendons operating in series to the muscle fibers. Carefully designed conceptual as well as detailed motion dynamics models are key to understanding the purposes of softness, i.e. elasticity and damping, in human and animal locomotion and to transfer these insights to the design and control of novel legged robots. Results for the design of compliant legged systems based on a series of conceptual biomechanical models are summarized. We discuss how these models compare to experimental observations of human locomotion and how these models could be used to guide the design of legged robots and also how to systematically evaluate and compare natural and robotic legged motions.

Fachbereich(e)/-gebiet(e): 20 Fachbereich Informatik
20 Fachbereich Informatik > Simulation, Systemoptimierung und Robotik
Hinterlegungsdatum: 20 Jun 2016 23:26
Letzte Änderung: 05 Apr 2019 07:06
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