期刊
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
卷 36, 期 12, 页码 1923-1930出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.enganabound.2012.07.010
关键词
Radial basis function; Regularization technique; Helmholtz problem
资金
- National Basic Research Program of China (973 Project) [2010CB832702]
- Opening Fund of the State Key Laboratory of Structural Analysis for Industrial Equipment [GZ0902]
- R&D Special Fund for Public Welfare Industry (Hydrodynamics) [201101014]
- Jiangsu Province Graduate Students Research and Innovation Plan [CXZZ12_0226]
In this paper, a new radial basis function (RBF) is proposed to solve Helmholtz problems in the traditional collocation method. Since the matrix equation arising from the RBF interpolation is ill-conditioned, a regularized singular value decomposition method is used to obtain a more accurate solution. Numerical examples of both direct and inverse problems are presented to demonstrate the effectiveness and applicability of the proposed RBF versus the traditional multiquadric RBF. (C) 2012 Elsevier Ltd. All rights reserved.
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