R. Caracciolo, E. Ceresole, A. Gasparetto, M. Giovagnoni
Accurate Modelling of a Controlled Pneumatic Actuator with Experimental Validation
Proc. of the IUTAM Int. Symp. on Interaction between Dynamics and Control in Advanced Mechanical Systems, Eindhoven, 22-26 Apr. 1996

Abstract: This work presents an accurate model of a controlled pneumatic actuator. The work is concurrent with the development of a new control algorithm for this kind of systems, based on an accurate thermo-mechanical model and oriented to perform a complete trajectory control. The actuator is composed of a proportional servovalve and a cylinder with magnetical tracking. The cylinder is supported by a pair of linear bearings. The model proposed for the valve is based on a static experimental characterization. The model of the cylinder is obtained assuming that the thermodynamic processes in both chambers are isothermal and that the air is a perfect gas. Numerical simulations are compared with experimental recordings for step and sine input in open chain conditions.

Area: Controllo di Sistemi Meccanici

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