ACTIVE WAVE CONTROL OF A FLEXIBLE BEAM USING DISTRIBUTED PARAMETER SENSORS

Abstract

This paper considers the active vibration control of a flexible beam using distributed parameter sensors from the viewpoint of active wave control theory. It is the pupose of this paper to present a new type of sensor which makes it possible to measure waves amplitude of a flexible beam in real time fore the application of the adaptive feedforward control system. Firstly, a novel wave filtering method using distributed parameter PVDF sensors is proposed which can be regarded as the integration of infinite point sensors, and have arithmetic calculation by being shaped on the basis of arbitrary functions. Furthermore, the characteristics of the wave filter are clarified. Finally, experiments on active wave control using the wave filter are conducted, and the control effects for suppressing the vibration of a targeted frequency are presented.