217 スマートボードのヘルスモニタリングに関する研究(診断)(OS.02 : 計測・信号処理・異常診断)

概要

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A smart board with multiple functions of vibration control, noise suppression and health monitoring is being developed in Tohoku University. The objective of this study is to develop the health monitoring function of the smart board. This paper presents the identification of an attached mass on a composite beam, which was carried out as the first step for the development of the health monitoring of the smart board. The composite beam is made from 14 layers of prepreg with two PZT elements embedded in the mid-surface. The variation of the electrical impedance of the two PZT elements was measured and used to identify the location of the attached mass. The experimental results shows good precision in location identification of the attached mass for both free-free and clamp-clamp boundary conditions of the beam.
一般社団法人日本機械学会の論文
2001-08-03