| 奇异积分处理技术在低频声散射数值计算中的应用 |
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| 引用本文： | 徐忠昌,周泽渊. 奇异积分处理技术在低频声散射数值计算中的应用[J]. 舰船电子工程, 2011, 31(7): 164-166 |
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| 作者姓名： | 徐忠昌 周泽渊 |
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| 作者单位： | 海军工程大学理学院 武汉430033 |
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| 基金项目： | 国家部委基金项目(4010501010102)资助 |
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| 摘 要： | 针对散射声场的计算问题,将奇异积分处理技术应用于目标的低频声散射的数值计算、理论验模与仿真试验。若果表明,ka＜3时,新方法的仿真结果与解析值以及等价面元近似方法取得了较好的一致;而ka≥3时,新方法的仿真结耙要好于等价面元近似方法。
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| 关 键 词： | 奇异积分 等价面元近似方法 回声强度 声散射 |
Applications of Mathematical Processing Technique of Singualr-integral in Numerical Calculation of Acoustic Scattering at Low Frequency |
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| Xu Zhongchang,Zhou Zeyuan. Applications of Mathematical Processing Technique of Singualr-integral in Numerical Calculation of Acoustic Scattering at Low Frequency[J]. Ship Electronic Engineering, 2011, 31(7): 164-166 |
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| Authors: | Xu Zhongchang Zhou Zeyuan |
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| Affiliation: | Xu Zhongchang Zhou Zeyuan(College of Science,Naval Univ.of Engineering,Wuhan 430033) |
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| Abstract: | Aiming at the question of computation of acoustic scattering, the paper applied the new method which is hansed on the technique of mathematical processing of singular integral into the calculation of acoustic scattering at low frequency. The results of simulation indicated that the new method is in good agreement with theoretical results and the results of equivalent facet method when ka〈3, but the new method is better than equivalent facet method while ka≥Y3. |
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| Keywords: | singular integral equivalent facet method echo strength acoustic scattering |
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