124 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 : ロバストフィードバック制御の実験(サイレント工学IV:能動騒音制御)(OS.04 : サイレント工学)

概要

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This paper describes a prototype model of 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 design is based on system identification results by using subspace method. Control experiment is conducted to prove the effectiveness of the control system.
社団法人日本機械学会の論文
2001-08-03