224 床衝撃音のアクティブコントロールシステム

概要

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This paper describes the active control systems for reducing floor impulse noise. The control system is comprised of actively controlled modular thin plates, which wholly cover the surface of concrete slab structure in the ceiling, and in each of which the mechanical vibration is controlled independently with bimorph type piezoelectric actuators. An active control system of modular plate is presented, where six actuators and five sensors are applied to control low frequency modes of bending vibration in the plate. The control system is now under development, main investigation subjects of which are designing of vibration characteristics of modular thin plate and the active control system appropriate to the characteristics and cost reduction of the actuators and sensors.
一般社団法人日本機械学会の論文
2003-06-04