Abstract
A coupled dynamic problem of electromechanics for thin wall multilayer elements is formulated based on the Kirchhoff-Love hypotheses. In the case of harmonic loading, a simplified formulation is given using the monoharmonic approach and the concept of complex moduli to characterize the cyclic properties of the material. The problem of forced vibrations of three-layer beam, whose outer layers are made of a viscoelastic piezoactive material, and, the inner layer of a passive physically nonlinear material, is considered as an example to demonstrate the possibility of the technique elaborated. The possibility of damping the forced vibrations of a structure with the help of harmonic voltages applied to the external piezoactive layers is studied. Results obtained for the transient response of the beam using the complete model are compared with data found using the simplified model. Limitations on the simplified model application are specified.
Original language | English |
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Pages (from-to) | 215-227 |
Number of pages | 13 |
Journal | Archive of Applied Mechanics |
Volume | 81 |
Issue number | 2 |
DOIs | |
Publication status | Published - Feb 2011 |
Keywords
- Active damping
- Complex moduli
- Layered thin wall structure
- Piezoelectric material
- Steady-state vibrations
ASJC Scopus subject areas
- Mechanical Engineering