Abstract
Since a pneumatic system has fluid-flow and thermal fields. Therefore, in modeling a pneumatic system by bond-graph, two kinds of bonds, multi-port C element and multi-port R one have been used, which are not necessary in modeling of a hydraulic system in general. And, the resulting bond-graph model becomes complicated. In this study, a bond-graph method for modelling a pneumatic system is proposed. In modeling of fluid flow and thermal field in a pneumatic system, pseudo bond-graph is employed. And, only 1-port C and 1-port R elements are used for modeling of this system. To confirm the usefulness of the proposed method, simulations and experiments for a pneumatic system used an air gripper as an actuator.
