| 吴建涛,姜哲.利用声辐射模态对声场进行重构[J].,2007,26(1):29-34 |
| 利用声辐射模态对声场进行重构 |
| On reconstruction of acoustic pressure fields using the radiation modes |
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| 中文摘要: |
| 声辐射模态是定义在振动表面上的一组互相独立的基函数,描绘了振动表面的多极子辐射模式。本文利用声辐射模态对平板辐射的声场进行重构,并同时就频率和模态数对误差的影响进行了分析。针对复杂振动表面幅射的声场,重构时需正则化处理。数值计算结果和对应的理论值达到很好的吻合。 |
| 英文摘要: |
| The acoustic radition modes constitute a set of independent basis functions defined on the vibrating surface and describe the radition patterns of multi-pole.This paper presents implementation of reconstruction of acoustic pressure field using acous- tic radiation modes and analyzes the error from mode number and frequency.For the complicated radiation of a plate,the regularization method is used,and the numerally calculated results agree with a theoretical results. |
| DOI：10.11684/j.issn.1000-310X.2007.01.006 |
| 中文关键词: 声辐射模态 声场重构 正则化方法 |
| 英文关键词: Acoustic radition modes Reconstruction of acoustic pressure fields Regularization methods |
| 基金项目:国家自然科学基金(50475120) |
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