Influence of Chebyshev Collocation Points on the Convergence of Results in the Analysis of Annular Plate Vibrations

The Chebyshev collocation points have been used as the interpolating nodes in the analysis of vibrations ofan annular plate by an interpolation approximation and their influence on the convergence of the results has been investigated. For the purpose, two different interpolating approximate methods-the spline and the collocation-have been considered and, for a typical value of the plate parameters and boundary conditions in each one, the frequency parameters of the plate have been computed by taking both the equi-spaced nodes as well as the Chebyshev points as the interpolating nodes. A faster rate of convergence and appreciably improved results have been obtained at Chebyshev collocation points as compared to the results obtained at equi-spaced nodes (Fourier points) in each of the methods for the lower values of radii ratio. However, no appreciable influence of the Chebyshev collocation points on the results has been observed for the higher values of the radii ratio in any of the methods.

並列關鍵字

Chebyshev Points ； Annular Points ； Interpolation Approximation ； Spline and Collocation Methods ； Radii Ratio

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國際替代計量

Influence of Chebyshev Collocation Points on the Convergence of Results in the Analysis of Annular Plate Vibrations

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