104 高次と低次のモードを省略するモード合成技術を利用した室内騒音の能動制御(スマート構造位相最適化)(OS.03 : 最適設計)

概要

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A new modeling technique using Ma-Hagiwara mode superposition method for the active control of interior noise in an enclosure is discussed. Modal synthesis method is used to establish the governing equation of the fully coupled acoustic-structural-piezoelectric patch system. This method can be applied to the vibro-acoustical system with any shaped enclosure with the modal parameters which appear in the frequency range of interest Ma-Hagiwara mode superposition method is introduced to save calculation effort and to improve the accuracy of frequency response by truncating lower and higher modes. Feed-forward control is adopted in the control strategy of sound pressure level (SPL).
一般社団法人日本機械学会の論文
2001-08-03