Journal
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
Volume 42, Issue -, Pages 84-91Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.enganabound.2013.08.009
Keywords
Smoothed finite element method; Gradient smoothing technique; Acoustics; Structural acoustics; Numerical method
Ask authors/readers for more resources
The smoothed finite element method (S-FEM) developed recently shows great efficiency in solving solid mechanics and acoustics problems. In this paper, coupled structural-acoustic problems are studied using the S-FEM method. Three-node triangular elements and four-node tetrahedral elements are used to discretize the two-dimensional and three-dimensional domains, respectively. The gradient field of the problem is smoothed using gradient smoothing operations over the edge-based and face-based smoothing domains in two-dimensional plate and three-dimensional fluid, respectively. Because the gradient smoothing technique can provide a proper softening effect to the overly-stiff FEM model, significant improvements are achieved on the accuracy of solution for the coupled systems. Typical numerical examples have been conducted to verify the effectiveness of the S-FEM for coupled structural-acoustic problems. (C) 2013 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available