Wave Finite Element method for electromechanical periodic waveguides

Boris Lossouarn (1) , Mathieu Aucejo (1) , Jean-François Deü (1)

1 LMSSC - Laboratoire de Mécanique des Structures et des Systèmes Couplés

A novel Finite Element formulation is proposed for cases involving the coupling of mechanical and electrical waveguides. This allows using the Transfer Matrix formalism proposed in the Wave Finite Element method. Electrical variables are added to the state vectors in order to compute propagation constants for electromechanical waves. Frequency response fonc-tions of coupled structures can also be obtained for various mechanical and electrical boundary conditions.

Mots clés: Wave Propagation; Transfer Matrix; Piezoelectric Coupling; Electrical Network

Domaines: Mécanique des structures [physics.class-ph]; Vibrations [physics.class-ph]; Energie électrique

Boris Lossouarn, Mathieu Aucejo, Jean-François Deü. Wave Finite Element method for electromechanical periodic waveguides. 8th ECCOMAS Thematic Conference on Smart Structures and Materials, SMART 2017, Jun 2017, Madrid, Spain. ⟨hal-01739786⟩