| 快速多极边界元法应用于预测消声器的声学性能 |
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| 引用本文： | 王雪仁,季振林.快速多极边界元法应用于预测消声器的声学性能[J].中国科学技术大学学报,2008,38(2):207-214. |
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| 作者姓名： | 王雪仁 季振林 |
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| 作者单位： | 哈尔滨工程大学动力与能源工程学院,黑龙江哈尔滨,150001 |
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| 摘 要： | 将快速多极边界元法（FMBEM）应用于计算内部声学问题,预测了消声器的传递损失,并与传统边界元法（CBEM）作了比较,验证了所发展FMBEM的正确性.分析和比较了在预测消声器声学性能时单元数和频率对FMBEM和CBEM的计算量和内存需求量的影响规律,结果表明：相对于CBEM,所发展的FMBEM在预测大量单元数消声器声学性能时是高效的;频率对FMBEM的计算量和内存需求量有着重要的影响.
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| 关 键 词： | 快速多极边界元法 声学性能 消声器 fast multipole boundary element method (FMBEM) acoustic performance silencer 快速多极边界元法 应用 预测 消声器 声学性能 acoustic performance silencer predicting efficient large numbers Influence rules elements frequency computational complexity memory requirements show valid |
| 文章编号： | 0253-2778（2008）02-0207-08 |
| 收稿时间： | 2006-12-01 |
| 修稿时间： | 2007-05-21 |
Application of FMBEM to predict silencer acoustic performance |
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| WANG Xue-ren,JI Zhen-lin.Application of FMBEM to predict silencer acoustic performance[J].Journal of University of Science and Technology of China,2008,38(2):207-214. |
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| Authors: | WANG Xue-ren JI Zhen-lin |
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| Abstract: | The fast multipole boundary element method (FMBEM) was applied to calculate the interior acoustic problems. The transmission loss results of silencers were compared with predictions of the conventional boundary element method (CBEM), which show that the proposed FMBEM is valid. Influence rules of the number of elements and frequency on the computational complexity and the memory requirements of FMBEM and CBEM were analyzed and compared. The results showed that the FMBEM is more efficient for predicting the acoustic performance of silencers with large numbers of elements compared to the CBEM, and frequency has some important influence on its computational complexity and memory requirements. |
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| Keywords: | fast multipole boundary element method (FMBEM) acoustic performance silencer |
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