Flow disturbance suppression for a pneumatic vibration isolator using a central pattern generator

This paper presents the suppression method of flow disturbance, which is the variation of compressed air supplied to a pneumatic vibration isolator. A central pattern generator (CPG) is utilized to compensate effect of flow disturbance. In order to implement a CPG-based controller, feedback type control scheme, which does not require a pressure sensor, is adopted. Moreover, CPG-based and displacement controllers are connected in parallel so as to avoid the vibration of isolation table during the start-up of isolator. The proposed approach is verified by simulation and experiment.