Vibration and Wave Propagation Control of Plates with Periodic Arrays of Shunted Piezoelectric Patches
By A. Spadoni, Massimo Ruzzene, K. Cunefare. 2009
156 citations recorded by the source corpus.
Periodic arrays of shunted, piezoelectric patches are employed to control waves propagating over the surface of plate structures, and corresponding vibrations. The shunted, piezoelectric patches act as sources of impedance mismatch, which gives rise to interference phenomena resulting from the interaction between incident, reflected and transmitted waves. Periodically distributed mismatch zones, i.e., the piezo patches, produce frequency dependent, wave-dynamic characteristics, which include the generation of band gaps, or stop bands in the frequency domain. The extent of induced band gaps depends on the mismatch in impedance generated by each patch. The total impedance mismatch, in turn, is determined by the added mass and stiffness of each patch as well as the shunting electrical impedance. Proper selection of the shunting electric-circuit thus provides control over the attenuation capabilities of the piezo-plate structure, as well as the ability to adapt to changing excitation conditions. Control of wave-propagation attenuation and vibration reduction for plates with periodic, shunted, piezoelectric patches is demonstrated numerically, employing finite-element models of the considered structures.
Subfields: Aerospace Engineering, Biomedical Engineering, Mechanics of Materials
View Paper: https://www.semanticscholar.org/paper/44fc6fa1939dcd6dc3d6d00620e2a6aa51c34c99
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In Aerospace Engineering
In Biomedical Engineering
In Mechanics of Materials
- Xisen Wen
- Jihong Wen
- L. Airoldi
- G. Wang
- Shengbing Chen
- Massimo Ruzzene
- Srinivasan Gopalakrishnan
- M. Mitra
Citations in the corpus
- Design of tunable acoustic metamaterials through periodic arrays of resonant shunted piezos (2011, methodology): “Hence, if the objective is the achievement of high attenuation over a frequency band which is as large as possible, a compromise in terms of resistance must be struck between bandwidth and attenuation, as defined by the magnitude of the imaginary part of the wavenumber (Spadoni et al 2009).”
- Wave propagation and attenuation in plates with periodic arrays of shunted piezo-patches (2013, methodology): “Therefore, the discretized forms of the governing equations of the unit cell are derived by applying Hamiltion’s Principle and standard FE procedures, which give [19,20] Muu € dþKuudþKuff1⁄4 f (2) KfudþKfff1⁄4 q (3) where d is the vector of the nodal generalized displacements, f the vector of the ge”