A modal synthesis method to solve the elastoacoustic vibration problem is analyzed. A two-dimensional coupled fluid-solid system is considered; the solid is described by displacement variables, whereas displacement potential is used for the fluid. A particular modal synthesis leading to a symmetric eigenvalue problem is introduced. Finite element discretizations with lagrangian elements are considered for solving the uncoupled problems. Convergence for eigenvalues and eigenfunctions is proved, error estimates are given, and numerical experiments exhibiting the good performance of the method are reported.
Mots clés : fluid-structure interaction, elastoacoustic, modal synthesis
@article{M2AN_2002__36_1_121_0, author = {Berm\'udez, Alfredo and Hervella-Nieto, Luis and Rodr{\'\i}guez, Rodolfo}, title = {A modal synthesis method for the elastoacoustic vibration problem}, journal = {ESAIM: Mod\'elisation math\'ematique et analyse num\'erique}, pages = {121--142}, publisher = {EDP-Sciences}, volume = {36}, number = {1}, year = {2002}, doi = {10.1051/m2an:2002005}, mrnumber = {1916295}, zbl = {1066.74032}, language = {en}, url = {http://www.numdam.org/articles/10.1051/m2an:2002005/} }
TY - JOUR AU - Bermúdez, Alfredo AU - Hervella-Nieto, Luis AU - Rodríguez, Rodolfo TI - A modal synthesis method for the elastoacoustic vibration problem JO - ESAIM: Modélisation mathématique et analyse numérique PY - 2002 SP - 121 EP - 142 VL - 36 IS - 1 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/m2an:2002005/ DO - 10.1051/m2an:2002005 LA - en ID - M2AN_2002__36_1_121_0 ER -
%0 Journal Article %A Bermúdez, Alfredo %A Hervella-Nieto, Luis %A Rodríguez, Rodolfo %T A modal synthesis method for the elastoacoustic vibration problem %J ESAIM: Modélisation mathématique et analyse numérique %D 2002 %P 121-142 %V 36 %N 1 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/m2an:2002005/ %R 10.1051/m2an:2002005 %G en %F M2AN_2002__36_1_121_0
Bermúdez, Alfredo; Hervella-Nieto, Luis; Rodríguez, Rodolfo. A modal synthesis method for the elastoacoustic vibration problem. ESAIM: Modélisation mathématique et analyse numérique, Tome 36 (2002) no. 1, pp. 121-142. doi : 10.1051/m2an:2002005. http://www.numdam.org/articles/10.1051/m2an:2002005/
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