Abstract
Vibroacoustic modal filters for baffled structures in free space are formulated in terms of structural modal amplitudes, and then these filters are theoretically developed using PVDF films. PVDF film-based vibroacoustic modal filters perform the signal process to estimate vibroacoustic modal amplitudes themselves. Thus, any digital signal processor to calculate vibroacoustic modal amplitudes, which is required when point sensor-based vibroacoustic modal filters are employed, can be eliminated. The developed theory is verified through numerical simulations relating to a rectangular plate.
