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Discrete wavenumber method

WebApr 2, 2007 · The discrete wavenumber-finite element method-WFEM- [14] implemented in the COMPSYN code [15] is a method to calculate synthetic ground motion seismograms … WebOct 23, 2024 · Usually, in the discrete wavenumber method (DWN) the horizontal wavenumber is discretized and Fourier analysis permits to go to time domain (see Bouchon and Aki 1977; Bouchon 2003). Theory allows solving the problem of the homogeneous boundary conditions in terms of an eigenvalue problem.

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WebOct 13, 2024 · The discrete wavenumber (DWN) method (e.g., Bouchon, 2003) has been established as a method to calculate complete elastic wavefield, including permanent … WebFeb 1, 2008 · The Localized Boundary Integral Equation–Discrete Wavenumber Method for Simulating P-SV Wave Scattering by an Irregular TopographyLocalized Boundary … the rushes care home marple https://antiguedadesmercurio.com

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WebApr 1, 1999 · The method of calculation used is a boundary element method in which the Green’s functions are computed by the discrete wavenumber method. For simplicity, the 2-D elastodynamic diffraction problem is considered. The rock matrix is supposed to be elastic, isotropic and homogeneous, while the cracks are all empty and have the same … WebDec 4, 2024 · Because the contribution of surface waves can be simply obtained by the residue theorem, the computation of SW H / V of cap-layered medium is faster than that of FW H / V evaluated by discrete wavenumber method and contour integration method. WebApr 11, 2024 · had been substituted by "The basic core concept of this study, which is based on the DFT operation and zero-padding, is an extended smoothing method for two-dimensional discrete data. " Line 104: "This procedure complements the original sequence with zeroes and adds no additional information to the angular spectrum of the wave … the rushes shopping centre loughborough

A boundary integral equation‐discrete wavenumber representation method ...

Category:The Localized Boundary Integral Equation–Discrete Wavenumber …

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Discrete wavenumber method

The discrete wavenumber/finite element method for synthetic …

WebA method based on a discrete horizontal wave-number representation of seismic-source wave fields is developed and applied to the study of the near-field of a seismic source embedded in a layered medium. ... (1973) results for a propagating fault in an infinite medium. In both cases, a remarkably good agreement is found. The method is applied to ... WebBouchon, M., 1981, A simple method to calculate Green’s functions for elastic layered media: Bulletin of the Seismological Society of America, 71, 959–971. BSSAAP 0037-1106 Crossref Web of Science Google Scholar; Bouchon, M., 2003, A review of the discrete wavenumber method: Pure and Applied Geophysics, 160, 445–465, doi: .

Discrete wavenumber method

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WebApr 14, 2024 · This method based on such discrete transforms provides optimal accuracy in that the rate of convergence for suitably smooth solutions is faster than any power of the mesh of \({N}_{x} ... Based on the stability analysis of Appendix C of the supporting information document, we selected the critical wavenumber \({q}_{0}=2\pi /{\lambda … WebApr 11, 2024 · Aiming at the problem of sparse measurement points due to test conditions in engineering, a smoothing method based on zero-padding in the wavenumber domain is proposed to increase data density. Firstly, the principle of data extension and smoothing is introduced. The core idea of this principle is to extend the discrete data series by zero …

WebThe discrete wavenumber method is used to compute synthetic full-waveform acoustic logs in axisymmetric multilayered boreholes and to perform the frequency-wavenumber analysis of the radiated wave field. The stress-displacement vector is propagated through the layers using a numerically improved formulation of the Thomson-Haskell method.In …

WebThe approach is based on the representation of the interfaces by distributions of body forces, the radiation from which is equivalent to the scattered wave field produced by the … WebA boundary integral equation-discrete wavenumber representation method to study wave propagation in multilayered media having irregular interfaces Michel Bouchon , Michel …

WebDiscrete wavenumber methods fall into three categories: the discrete wavenumber fictitious force method, the discrete wavenumber finite element methodand the discrete …

WebSH Wave Number Green’s Function for a Layered, Elastic Half-Space. Part I: Theory and Dynamic Canyon Response by the Discrete Wave Number Boundary Element Method (PDF) SH Wave Number Green’s Function for a Layered, Elastic Half-Space. the rushes warkworthWebThe algorithm is extended to include simultaneous evaluation of multiple sources at different depths. This feature is the same as in Olson's finite element discrete Fourier Bessel … the rushes shopping centreWebABSTRACTS Synthetic seismograms recorded with a logging-while-drilling (LWD) tool in the presence of slow formation are computed by the discrete wavenumber method. Monopole, dipole, and quadrupole logging tools are simulated with a source center frequency of 4 kHz. the rush fam dad