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https://repository.cihe.edu.hk/jspui/handle/cihe/2833| Title: | 含裂紋彈性結構對聲散射作用研究 | Other Titles: | Analysis on acoustical scattering by cracked elastic structures | Author(s): | Leung, Andrew Yee Tak | Author(s): | 吳國榮 鐘偉芳 吳永東 |
Issue Date: | 2004 | Publisher: | 中國力學學會 | Journal: | 固體力學學報 | Volume: | 25 | Issue: | 1 | Start page: | 11 | End page: | 15 | Abstract: | 研究了含裂紋的彈性結構對聲的散射作用。應用分配形有限元和邊界元相結合的方法於含裂紋的結構聲相互作用問題。利用二級分形有限元方法對含裂紋結構進行離散, 這將使得自由度大為減少; 使用邊界元方法計算外域散射聲場, 這將自動滿足無限遠輻射邊界條件。數值結果初步表明：(1)隨著裂紋深度的增加, 結構聲耦合系統的共振頻率將下降; (2)裂紋附近的聲場所受的影響更為明顯。 |
URI: | https://repository.cihe.edu.hk/jspui/handle/cihe/2833 | DOI: | 10.3969/j.issn.0254-7805.2004.01.003 | CIHE Affiliated Publication: | No |
| Appears in Collections: | CIS Publication |
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