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<p>The formulae for the prevailing-frequency approximation of the coupling ray theory derived in the companion paper, are tested on several models displaying varying strength of anisotropy and containing various types of shear-wave singularities. Standard coupling ray theory applied to these models yields results of a high accuracy as follows from tests made in the past. Therefore, the results of the standard coupling ray theory are used as a&#xa0;benchmark in this study. The results of the tests show that the prevailing-frequency approximation of the coupling ray theory can serve as a perfect substitute of its standard counterpart. Use of the prevailing-frequency approximation simplifies and speeds up considerably the computational procedure and makes it comparable with the procedure for the calculation of separate waves in the ray-theory approximation.</p>

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Prevailing-Frequency Approximation of the Coupling Ray Theory Within the Weak-Anisotropy Concept II-Numerical Tests

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年3月1日

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  • Ivan Pšenčík,
  • Véronique Farra

摘要

The formulae for the prevailing-frequency approximation of the coupling ray theory derived in the companion paper, are tested on several models displaying varying strength of anisotropy and containing various types of shear-wave singularities. Standard coupling ray theory applied to these models yields results of a high accuracy as follows from tests made in the past. Therefore, the results of the standard coupling ray theory are used as a benchmark in this study. The results of the tests show that the prevailing-frequency approximation of the coupling ray theory can serve as a perfect substitute of its standard counterpart. Use of the prevailing-frequency approximation simplifies and speeds up considerably the computational procedure and makes it comparable with the procedure for the calculation of separate waves in the ray-theory approximation.