3711 薄板の騒音伝達の能動制御 : 放射音響パワー最小化のための検討

概要

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This paper describes sound transmission reduction control through thin plate by using piezoelectric ceramics sensors and actuators, both of which are bonded on both surface of the plate. Two kind of controllers are introduced as control system. One of them is feedforward controller based on filtered-ε algorithm, and the other is feedback controller with internal model controller(IMC). In general, IMC is applied to cope with howling instability. Butin this study, it's used to estimate the vibration sensor signal caused by disturbance. We propose a new control system where the filtered-ε algorithm is applied by utilizing the output signal of IMC which is alternative of the reference signal. Then the control system can work without reference signal. To minimize of sound power radiated from the plate, microphone is used as the sensor of the control system.
一般社団法人日本機械学会の論文
2000-07-31