Design Analysis of a Pneumatic Force Control Servosystem with Pressure Proportional Valve
Massimo Sorli and Alessandro Vigliani
Dipartimento di Meccanica, Politecnico di Torino, Corso Duca degli Abruzzi, 24, 10129 Torino, Italy
We study static and dynamic performance of a force control pneumatic servosystem formed by a linear cylinder supplied by a pressure-proportional valve with a force closed-loop. Nonlinear and linearized models are presented to define design strategies, i.e., components satisfying imposed technical specifications. Through parametric analysis, we point out the effects due to circuit size and pressure-proportional valve bandwidth on overall system performance.