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- Title
Generalized nth-Order Perturbation Method Based on Loop Subdivision Surface Boundary ElementMethod for Three-Dimensional Broadband Structural Acoustic Uncertainty Analysis.
- Authors
Ruijin Huo; Qingxiang Pei; XiaohuiYuan; Yanming Xu
- Abstract
In this paper, a generalized nth-order perturbation method based on the isogeometric boundary element method is proposed for the uncertainty analysis of broadband structural acoustic scattering problems. The Burton-Miller method is employed to solve the problemof non-unique solutions thatmay be encountered in the external acoustic field, and the nth-order discretization formulation of the boundary integral equation is derived. In addition, the computation of loop subdivision surfaces and the subdivision rules are introduced. In order to confirm the effectiveness of the algorithm, the computed results are contrasted and analyzed with the results under Monte Carlo simulations (MCs) through several numerical examples.
- Subjects
ISOGEOMETRIC analysis; BOUNDARY element methods; SUBDIVISION surfaces (Geometry); MONTE Carlo method; SOUND wave scattering; ACOUSTIC field; INTEGRAL equations; GEOGRAPHIC boundaries
- Publication
CMES-Computer Modeling in Engineering & Sciences, 2024, Vol 140, Issue 2, p2053
- ISSN
1526-1492
- Publication type
Article
- DOI
10.32604/cmes.2024.049185