スマート波動フィルタを用いた薄肉矩形平板のフィードフォワード型波動制御(<特集>D&D2009)

概要

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This paper is concerned with the active wave control of a rectangular panel. It is the purpose of this paper to present a wave filtering method for the panel using shaped smart sensors and its application to an adaptive feedforward control system. Firstly, the design procedure of the wave filter using shaped PVDF sensors is presented based on a wave solution of a rectangular panel. When introducing PVDF sensor, shaping function is defined as a complex function. In this case, an imaginary unit is realized by the phase shifter of 90 degrees. Next, from a viewpoint of numerical analysis, the accuracy of the wave filter and the performance of the control system are clarified. Finally, an experiment of the active wave feedforward control system is carried out, demonstrating the validity of the proposed method.
2010-05-25