分割ピエゾフィルムを用いた平板の振動モードフィルタリング
2004 年 70 巻 695 号 p. 1951-1958
詳細
2004 年 70 巻 695 号 p. 1951-1958
This paper considers modal filtering of the vibration of a rectangular plate with an equally segmented piezoelectric film sensor. The simply supported and clamped boundary conditions are mainly concerned. Estimated modal coordinates are calculated from the sum of the weighted voltages of the segmented piezoelectric film. The weights determination is based on least-square method, and the effects of the spatial aliasing are also considered. Experimental results demonstrate the efficiency of this method.
