| Autor: |
Versluys, Rino, Deckers, Kristel, Van Damme, Michaël, Van Ham, Ronald, Steenackers, Gunther, Guillaume, Patrick, Lefeber, Dirk |
| Předmět: |
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| Zdroj: |
Applied Bionics & Biomechanics; Mar2009, Vol. 6 Issue 1, p49-55, 7p, 2 Black and White Photographs, 1 Diagram, 1 Chart, 10 Graphs |
| Abstrakt: |
Pleated pneumatic artificial muscles have interesting properties that can be of considerable significance in robotics and automation. With a view to the potential use of pleated pneumatic artificial muscles as actuators for a fatigue test bench (high forces and small displacements), the bandwidth characteristics of a muscle-valve system were investigated. Bandwidth is commonly used for linear systems, as the Bode plot is independent of the amplitude of the input signal. However, due to the non-linear behaviour of pleated pneumatic artificial muscles, the system's gain becomes dependent on the amplitude of the input sine wave. As a result, only one Bode plot is insufficient to clearly describe or identify a non-linear system. In this study, the bandwidth of a muscle-valve system was assessed from two perspectives: a varying amplitude and a varying offset of the input sine wave. A brief introduction to pneumatic artificial muscles is given. The concept of pleated pneumatic artificial muscles is explained. Furthermore, the different test methods and experimental results are presented. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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