Analysis of Instantaneous Acoustic Fields Using Fast Inverse Laplace Transform

Seiya Kishimoto; Naoya Ishikawa; Shinichiro Ohnuki

doi:10.1587/transele.2021ESS0003

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Analysis of Instantaneous Acoustic Fields Using Fast Inverse Laplace Transform

Seiya Kishimoto, Naoya Ishikawa, Shinichiro Ohnuki

著者情報

キーワード: Acoustics, time-domain, finite-difference complex-frequency-domain, fast inverse Laplace transform

ジャーナルフリー早期公開

論文ID: 2021ESS0003

DOI https://doi.org/10.1587/transele.2021ESS0003

この記事には本公開記事があります。

The final version of this article is now available: Vol. E105.C (2022), No. 11 pp. 700-703

詳細

抄録

In this study, a computational method is proposed for acoustic field analysis tasks that require lengthy observation times. The acoustic fields at a given observation time are obtained using a fast inverse Laplace transform with a finite-difference complex-frequency-domain. The transient acoustic field can be evaluated at arbitrary sampling intervals by obtaining the instantaneous acoustic field at the desired observation time using the proposed method.

責任著者(Corresponding author)

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