Title :
Comparison between different finite element/boundary formulations for modeling acoustic radiation in fluids
Author :
Piranda, B. ; Steichen, W. ; Ballandras, S.
Author_Institution :
Lab. de Phys. et Metrol. des Oscillateurs, CNRS, Besancon, France
Abstract :
Different possibilities are investigated in this paper to model acoustic radiation in fluids excited by piezoelectric transducers. Bidimensional collocations formulations (simple or symmetric) as well as variational principles have been tested and compared. Since the variational approach was found to be the most efficient one, it has been used to develop a mixed 2D finite element/boundary element programme to simulate acoustic pressure radiation in fluids generated by ultrasound piezoelectric transducers. This development has been extended to take into account 1D periodicity in 2D structures. A typical application of the code is shown to illustrate the proposed work
Keywords :
acoustic field; boundary-elements methods; finite element analysis; piezoelectric transducers; ultrasonic transducers; variational techniques; 1D periodicity; acoustic pressure radiation; acoustic radiation; bidimensional collocations formulations; finite element/boundary formulations; fluids; mixed 2D finite element/boundary element programme; piezoelectric transducers; variational principle; Acoustic testing; Acoustic transducers; Boundary element methods; Finite element methods; Green´s function methods; Piezoelectric transducers; Solids; Stress; Ultrasonic imaging; Ultrasonic transducers;
Conference_Titel :
Ultrasonics Symposium, 1998. Proceedings., 1998 IEEE
Conference_Location :
Sendai
Print_ISBN :
0-7803-4095-7
DOI :
10.1109/ULTSYM.1998.765015
