Patent ID: 7893602

Claim:
An apparatus for minimizing vibration in a boundary-stiffened panel, the apparatus comprising: a transducer having a pair of inter-digitated electrodes (IDE) and a piezoelectric wafer portion positioned between said pair of IDE, said transducer being adapted to generate and transmit an output force to the stiffened panel in response to an output force signal; a sensor that is operable for measuring the vibration at a surface portion of the stiffened panel, and adapted for generating an input voltage signal in proportion to said vibration; and a controller that is electrically connected to each of said transducer and said sensor, said controller being configured to generate said output force signal in response to said input voltage signal; wherein at least one of said piezoelectric wafer portion and said pair of IDE is a substantially triangularly-shaped component, and wherein said output force signal is adapted to induce said output force.