3247 バイモルフ圧電素子を用いた床衝撃音のアクティブコントロール : ロバスト制御実験

概要

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This paper describes an active control system for reducing transmitted noise, which is caused by floor impulse and perceived at the downstairs room. The active control system actuated by bi-morph piezoelectric elements are installed in the intermediate space between the upstairs floor and the downstairs ceiling. The bi-morph piezoelectric elements are reinforced for improving bending strength by polyethylene plate with low bending stiffness. H-infinity robust feedback control system is designed assuming application of four actuators and four sensors to eliminate the sensor signal. The control system design is based on system identification results by using subspace method. Some control experiments are conducted to prove the effectiveness of the control system.
一般社団法人日本機械学会の論文
2002-09-20