- Tytuł:
- Numerical modeling of uncertainty in acoustic propagation via generalized Polynomial Chaos
- Autorzy:
-
Dammak, Khalil
Koubaa, Sana
Elhami, Abdelkhalak
Walha, Lassaad
Haddar, Mohamed - Powiązania:
- https://bibliotekanauki.pl/articles/280126.pdf
- Data publikacji:
- 2019
- Wydawca:
- Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
- Tematy:
-
finite element simulation
uncertainty quantification
acoustic propagation
generalized Polynomial Chaos - Opis:
- This work aims at increasing the performance prediction for acoustic propagation systems that will operate in the presence of the inevitable parameters uncertainty. In the present contribution, the finite element method is applied to solve an acoustic problem described by the Helmholz equation when the geometric and material properties present uncertainty. The influence of the uncertainty of physical parameters on the pressure field is discussed. The results using the polynomial chaos expansion method are compared with Monte Carlo simulations. It is show that uncertainty levels in the input data could result in large variability in the calculated pressure field in the domain.
- Źródło:
-
Journal of Theoretical and Applied Mechanics; 2019, 57, 1; 3-15
1429-2955 - Pojawia się w:
- Journal of Theoretical and Applied Mechanics
- Dostawca treści:
- Biblioteka Nauki
Artykuł