A new method for studying the vibration of non-homogeneous membranes

Details A new method for studying the vibration of non-homogeneous membranes A new method for studying the vibration of non-homogeneous membranes

2008-01-28

arxiv.org/abs/0801.4369v1

Physics

Computational Physics

16 pages, 7 figures, 6 tables

Scientific paper

10.1016/j.jsv.2008.09.024

We present a method to solve the Helmholtz equation for a non-homogeneous membrane with Dirichlet boundary conditions at the border of arbitrary two-dimensional domains. The method uses a collocation approach based on a set of localized functions, called "little sinc functions", which are used to discretize two-dimensional regions. We have performed extensive numerical tests and we have compared the results obtained with the present method with the ones available from the literature. Our results show that the present method is very accurate and that its implementation for general problems is straightforward.

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