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|標題:||Vibration and sound radiation controls of beams using layered modal sensors and actuators||作者:||Hsu, C.Y.
|關鍵字:||active control||Project:||Smart Materials & Structures||期刊/報告no：:||Smart Materials & Structures, Volume 7, Issue 4, Page(s) 446-455.||摘要:||
A new smart structural configuration for beams with symmetrically embedded modal sensors and actuators is proposed. Pairs of symmetrically installed modal sensors and actuators having the same shape of electrode profile are individually connected by a control unit. They are used to control each corresponding vibration mode of the beam independently. Dynamic response of the structure is investigated by the modal analysis method. Numerical simulations for vibration and sound radiation controls presented for illustrations are limited to simply supported beams. Results indicate that modal sensors and actuators, properly selected on the basis of the location and frequency of external forces, can effectively suppress the beam vibration and reduce radiated sound pressure in the far-field.
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