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A gradient-based shape optimisation for time-domain acoustic problems regarding the 3D dissipative wave equation with using the boundary element method
http://hdl.handle.net/2237/0002013736
http://hdl.handle.net/2237/0002013736791dd325-d316-4f0a-a95c-4a4704699d7a
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
ms_2.pdf (7.5 MB)
Download is available from 2026/10/1.
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| アイテムタイプ | itemtype_ver1(1) | |||||||||
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| 公開日 | 2025-12-18 | |||||||||
| タイトル | ||||||||||
| タイトル | A gradient-based shape optimisation for time-domain acoustic problems regarding the 3D dissipative wave equation with using the boundary element method | |||||||||
| 言語 | en | |||||||||
| 著者 |
Takahashi, Toru
× Takahashi, Toru
× Li, Jichuan
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| アクセス権 | ||||||||||
| アクセス権 | embargoed access | |||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_f1cf | |||||||||
| 権利 | ||||||||||
| 権利情報 | This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/s00366-025-02185-1 | |||||||||
| 言語 | en | |||||||||
| 内容記述 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | This paper presents a shape optimisation (SO) method for the three-dimensional dissipative wave equation in the time domain. Building upon existing work on the standard wave equation, we derive a novel shape derivative using the adjoint variable method. This derivative, expressed solely in terms of boundary integrals, is then discretised within a NURBS-based framework for representing the surface of acoustic scatterers. The resulting sensitivities with respect to the NURBS control points are employed as the gradient of the objective functional in a quasi-Newton optimisation algorithm. Both the primary and adjoint wave equations are solved using the time-domain boundary element method recently developed by the first author, with enhancements to address instability issues encountered in homogeneous Dirichlet problems. The effectiveness of the proposed SO system is demonstrated through sensitivity analyses and two validation problems, comparing the results for dissipative and non-dissipative cases. | |||||||||
| 言語 | en | |||||||||
| 出版者 | ||||||||||
| 出版者 | Springer | |||||||||
| 言語 | en | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||||||
| タイプ | journal article | |||||||||
| 出版タイプ | ||||||||||
| 出版タイプ | AM | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||
| 関連情報 | ||||||||||
| 関連タイプ | isVersionOf | |||||||||
| 識別子タイプ | DOI | |||||||||
| 関連識別子 | https://doi.org/10.1007/s00366-025-02185-1 | |||||||||
| 収録物識別子 | ||||||||||
| 収録物識別子タイプ | PISSN | |||||||||
| 収録物識別子 | 0177-0667 | |||||||||
| 書誌情報 |
en : ENGINEERING WITH COMPUTERS 巻 41, 号 5, p. 3891-3917, 発行日 2025-10 |
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| ファイル公開日 | ||||||||||
| 日付 | 2026-10-01 | |||||||||
| 日付タイプ | Available | |||||||||
