ハイブリッド境界要素法を用いた大領域ラム波シミュレーション

林, 高弘; 琵琶, 志朗; 遠藤, 茂寿

doi:https://doi.org/10.1299/kikaia.65.210

ハイブリッド境界要素法を用いた大領域ラム波シミュレーション

林, 高弘; 琵琶, 志朗; 遠藤, 茂寿

日本機械学会論文集 A編, 1999, 65(630), 210-217

アクセス数:452件（2025-08-15 07:41 集計）

固定URL: https://hdl.handle.net/11094/89239

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タイトル	ハイブリッド境界要素法を用いた大領域ラム波シミュレーション
	Large-scale simulation of Lamb wave propagation by Hybrid Boundary Element Method
	ハイブリッド　キョウカイ　ヨウソ　ホウ　ヲ　モチイタ　ダイリョウイキ　ラムハ　シミュレーション
著者	NRID 1000030324479 1000030324479 ORCID 0000-0001-6064-4658 0000-0001-6064-4658 researchmap permalink takahiro_hayashi takahiro_hayashi Scopus Author ID 37064150200 37064150200 著者名林, 高弘 ; ハヤシ, タカヒロ ; Hayashi, Takahiro
	NRID 1000090273466 1000090273466 著者名琵琶, 志朗 ; ビワ, シロウ ; Biwa, Shiro
	著者名遠藤, 茂寿 ; エンドウ, シゲヒサ ; Endoh, Shigehisa
キーワード等	Ultrasonic Inspection
	Boundary Element Method
	Computational Mechanics
	Lamb Wave
	Large-Scale Simulation
抄録	The simulation of Lamb wave propagation is an efficient tool to improve the accuracy of nondestructive inspection of metallic plates by ultrasonic methods. However the widely used modeling techniques such as FDM, FEM and BEM require too much computation time. Since the Lamb wave technique is often used for large structures relative to the ultrasonic wavelength (e.g. fluid pipes, storage tanks etc.), its computing requires a huge number of nodes or elements which are nearly proportional to computation time. This study is therefore focused on the Hybrid BEM (HBEM), which is the combination of exact Lamb wave theory and BEM for two-dimensional elastodynamics. In HBEM much less nodes should be considered in the calculations, and it results in much shorter calculation time. A description of HBEM used for Lamb wave simulation is given in this paper. The parameters for the exact solution of Lamb wave propagation were optimized to achieve the shortest calculation time. Finally, an effective simulation of a large structure is presented under pre-determined conditions.
出版者	日本機械学会
出版者	The Japan Society of Mechanical Engineers
収録物名	日本機械学会論文集 A編
収録物名	Transactions of the Japan Society of Mechanical Engineers Series A
巻(号)	65(630)
ページ	210-217
刊行年月	1999-02-25
言語	日本語
ハンドルURL	https://hdl.handle.net/11094/89239
PISSN	03875008
NCID	AN0018742X
NCID	AA11552999
関連情報 (isVersionOf)	DOI (出版社版) https://doi.org/10.1299/kikaia.65.210
アクセス権	open access
出版タイプ	Accepted Manuscript
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	日本機械学会論文集 A編. 1999, 65(630), p. 210-217
DC.title	ハイブリッド境界要素法を用いた大領域ラム波シミュレーション
	Large-scale simulation of Lamb wave propagation by Hybrid Boundary Element Method
	ハイブリッド　キョウカイ　ヨウソ　ホウ　ヲ　モチイタ　ダイリョウイキ　ラムハ　シミュレーション
DC.creator	林, 高弘
	ハヤシ, タカヒロ
	Hayashi, Takahiro
	琵琶, 志朗
	ビワ, シロウ
	Biwa, Shiro
	遠藤, 茂寿
	エンドウ, シゲヒサ
	Endoh, Shigehisa
DC.publisher	日本機械学会
DC.publisher	The Japan Society of Mechanical Engineers
DC.language' scheme='DCTERMS.RFC1766	日本語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	1999-02-25
DC.identifier	https://doi.org/10.1299/kikaia.65.210
DC.subject	Ultrasonic Inspection
	Boundary Element Method
	Computational Mechanics
	Lamb Wave
	Large-Scale Simulation
DCTERMS.abstract	The simulation of Lamb wave propagation is an efficient tool to improve the accuracy of nondestructive inspection of metallic plates by ultrasonic methods. However the widely used modeling techniques such as FDM, FEM and BEM require too much computation time. Since the Lamb wave technique is often used for large structures relative to the ultrasonic wavelength (e.g. fluid pipes, storage tanks etc.), its computing requires a huge number of nodes or elements which are nearly proportional to computation time. This study is therefore focused on the Hybrid BEM (HBEM), which is the combination of exact Lamb wave theory and BEM for two-dimensional elastodynamics. In HBEM much less nodes should be considered in the calculations, and it results in much shorter calculation time. A description of HBEM used for Lamb wave simulation is given in this paper. The parameters for the exact solution of Lamb wave propagation were optimized to achieve the shortest calculation time. Finally, an effective simulation of a large structure is presented under pre-determined conditions.
DC.format	89239
citation_title	ハイブリッド境界要素法を用いた大領域ラム波シミュレーション
citation_author	林, 高弘
	琵琶, 志朗
	遠藤, 茂寿
citation_publisher	日本機械学会
citation_language	日本語
citation_date	1999-02-25
citation_journal_title	日本機械学会論文集 A編
citation_volume	65
citation_issue	630
citation_firstpage	210
citation_lastpage	217
citation_doi	https://doi.org/10.1299/kikaia.65.210
citation_public_url	https://hdl.handle.net/11094/89239

ハイブリッド境界要素法を用いた大領域ラム波シミュレーション

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