Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

A Mechanical Model of Pneumatic Muscle: Modeling, Simulation, Control and Experimental Validation

Version 1 : Received: 12 November 2023 / Approved: 14 November 2023 / Online: 14 November 2023 (11:27:14 CET)

How to cite: Chivu, C.; Chivu, C.; Georgescu, C.; Ichim, I. A Mechanical Model of Pneumatic Muscle: Modeling, Simulation, Control and Experimental Validation. Preprints 2023, 2023110860. https://doi.org/10.20944/preprints202311.0860.v1 Chivu, C.; Chivu, C.; Georgescu, C.; Ichim, I. A Mechanical Model of Pneumatic Muscle: Modeling, Simulation, Control and Experimental Validation. Preprints 2023, 2023110860. https://doi.org/10.20944/preprints202311.0860.v1

Abstract

The pneumatic muscle is an actuator well known for its inherited compliance. In the last years, there have been a lot of applications of these actuators, mainly oriented toward medical devices. However, there are few papers that use muscle as a model associated with mechanical structures. These actuators are difficult to control because their stiffness depends on the applied pressure, determining a non-linear behavior. This article presents a model, created in Matlab, considering the muscle as a kinematic structure. The model is simulated as an individual structure and a PID controller is applied to test the response. Then, these results are validated by experimental tests done in the laboratory on different types of muscles. Comparison results validate the accuracy of the model.

Keywords

automatic control; circuit simulation; Matlab; pneumatic actuators; pneumatics systems

Subject

Engineering, Industrial and Manufacturing Engineering

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