On the calculation of the acoustic eigenfrequencies for anisotropic materials with uncertainty
In this work a numerical method, based on a boundary integral formulation, is used to calculate approximately the acoustic eigenfrequencies or eigenvalues in a bounded domain filled with an anisotropic material. We assume that the knowledge about the anisotropy is uncertain or incomplete, and we use fuzzy numbers to model it. Using the Zadeh’s extension principle and affine transformations, we get approximate fuzzy solutions to the posed problem. Finally some numerical examples are shown.
Autores: Ossandón, S., Reyes, C.
Journal: Applied Mathematics and Computation
Journal Volume: 230
Journal Page: 330–335
Tipo de publicación: ISI
Fecha de publicación: 2014
Topics: Acoustic eigenfrequencies, Anisotropic materials, Boundary Element Method, Fuzzy numbers, Extension principle