What Is an Artificial Muscle? A Systemic Approach.
AbstractArtificial muscles define a large category of actuators we propose to analyze in a systemic framework by considering any artificial muscle as an open-loop stable system for any output which represents an artificial muscle dimension resulting from its “contraction”, understood in a broad meaning. This approach makes it possible to distinguish the artificial muscle from other actuators and to specify an original model for a linear artificial muscle, according to the theory of linear systems. Such a linear artificial muscle concept exhibits a constant stiffness independent on its control value. It is shown that a biomimetic actuator, made of two antagonist artificial muscles, requires that artificial muscle static characteristic, even in its most simplified form, is non-linear in the meaning of systems theory, to make possible the control of both actuator position and stiffness. However, we also attempt to show that a linear viscous damping can be a practical way for the dynamic behavior of the artificial muscle to be in relatively good accordance with the so-called Hill curve, interpreted as the dynamic characteristic linking the maximum contraction velocity of the artificial muscle to varying loads lifted against gravity. View Full-Text
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Tondu, B. What Is an Artificial Muscle? A Systemic Approach.. Actuators 2015, 4, 336-352.
Tondu B. What Is an Artificial Muscle? A Systemic Approach.. Actuators. 2015; 4(4):336-352.Chicago/Turabian Style
Tondu, Bertrand. 2015. "What Is an Artificial Muscle? A Systemic Approach.." Actuators 4, no. 4: 336-352.