Title :
Development of Absorbing Conditions for the Analysis of Finite Dimension Elastic Wave-Guides
Author :
Ballandras, Sylvain ; Gachon, Dorian ; Masson, Jérémy ; Daniau, William
Author_Institution :
Inst. FEMTO-ST, Besancon
fDate :
May 29 2007-June 1 2007
Abstract :
A perfectly matched layer approach was developed for piezoelectric problems simulated by finite element and compared with a distributed viscosity absorption method. The development is self-consistent and allows for absorbing energy at the edges of a mesh without spurious reflection due to non appropriated boundary conditions. ID and 2D validation are reported and the method is applied to analyze a finite length Lamb wave transducer and a 2D FBAR structure.
Keywords :
acoustic resonators; acoustic wave absorption; acoustic waveguides; bulk acoustic wave devices; finite element analysis; piezoelectric materials; surface acoustic wave transducers; 2D FBAR structure; distributed viscosity absorption method; film bulk acoustic resonator; finite dimension elastic wave-guides; finite element analysis; finite length Lamb wave transducer; perfectly matched layer approach; piezoelectricity based problems; Acoustic reflection; Acoustic transducers; Acoustic waves; Analytical models; Boundary conditions; Film bulk acoustic resonators; Finite element methods; Perfectly matched layers; Piezoelectric transducers; Surface acoustic wave devices;
Conference_Titel :
Frequency Control Symposium, 2007 Joint with the 21st European Frequency and Time Forum. IEEE International
Conference_Location :
Geneva
Print_ISBN :
978-1-4244-0646-3
Electronic_ISBN :
1075-6787
DOI :
10.1109/FREQ.2007.4319171
