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An active vibration control system as a benchmark for adaptive regulation (rejection of unknown time-varying narrow band disturbances)

The adaptive regulation is an important issue with a lot of potential for applications in active vibration control and active noise control. The basic problem from the ”control system” point of view is the rejection of multiple unknown and time varying narrow band disturbances without using an additional transducer for getting informations upon the disturbances. An adaptive feedback approach has to be considered for this problem. Industry needs a ”state of the art” in the field based on a solid experimental verification on a system using a current used technology. The paper present a benchmark problem for suppression of multiple unknown and/or time-varying vibrations and an associated active vibration control system using an inertial actuator on which the experimental verifications will be done. The objective is to minimize the residual force by applying an appropriate control effort through the inertial actuator. The system does not use any additional transducer for getting in real time information upon the disturbances. The final version of the paper will contain a comparative evaluation on the real system of the various approaches proposed.