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<p>The paper presents the results of calculating of sound diffraction by screens of various shapes, performed using the finite element method (FEM) developed by the authors in the Bubnov–Galerkin formulation. The calculations were verified on problems with an exact solution (diffraction by a cylinder, a segment, and a sphere), and the results of experimental validation of calculations of sound diffraction by a rectangular screen, performed using the maximum length sequence method, are also presented. The article was prepared based on materials of a report at the 10th Russian conference “Computational Experiment in Aeroacoustics and Aerodynamics,” September 16–21, 2024, Svetlogorsk, Kaliningrad oblast, <a href="http://ceaa.imamod.ru/">http://ceaa.imamod.ru/</a>.</p>

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Application of the Finite Element Method to Studying the Efficiency of Shielding Aviation Noise Sources

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • S. L. Denisov,
  • N. N. Ostrikov,
  • V. I. Vorontsov

摘要

The paper presents the results of calculating of sound diffraction by screens of various shapes, performed using the finite element method (FEM) developed by the authors in the Bubnov–Galerkin formulation. The calculations were verified on problems with an exact solution (diffraction by a cylinder, a segment, and a sphere), and the results of experimental validation of calculations of sound diffraction by a rectangular screen, performed using the maximum length sequence method, are also presented. The article was prepared based on materials of a report at the 10th Russian conference “Computational Experiment in Aeroacoustics and Aerodynamics,” September 16–21, 2024, Svetlogorsk, Kaliningrad oblast, http://ceaa.imamod.ru/.