| 基于近场声全息的圆柱壳体内部声场重构效果的影响因素 |
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| 引用本文： | 王健,陈克安,王岩.基于近场声全息的圆柱壳体内部声场重构效果的影响因素[J].应用声学,2009,28(1):66-70. |
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| 作者姓名： | 王健 陈克安 王岩 |
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| 作者单位： | 西北工业大学航海学院环境工程系,西安,710072 |
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| 摘 要： | 在Neumann边界条件下基于近场声全息原理(NAH)重构了两端封闭的有限长圆柱壳体内部声场,计算出的结果与基于模态叠加法构建的内部声场进行比较,证明了重构方法的正确性,然后分别讨论了激励频率和全息面选择对NAH重构声场精度的影响以及重构面上不同位置的重构效果。
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| 关 键 词： | 近场声全息 圆柱壳体 内部声场 全息面 |
Factors affecting sound field reconstruction within a cylindrical cavity based on nearfield acoustic holography |
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| Wang Jian,CHEN Ke-An and Wang Yan.Factors affecting sound field reconstruction within a cylindrical cavity based on nearfield acoustic holography[J].Applied Acoustics,2009,28(1):66-70. |
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| Authors: | Wang Jian CHEN Ke-An and Wang Yan |
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| Institution: | (College of Marine,Northwest Polytechnical University,Xi’an 710072) |
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| Abstract: | Under the Neumann boundary condition,the interior sound field of a cylindrical cavity with endcaps is reconstructed,based on nearfield acoustic holography(NAH). By comparing the sound field calculated by NAH with that calculated by the modal superposition approach,respective effects of the excited frequency,location of the holographic surface and location of the observation point on the reconstructing surface are investigated on the sound field reconstruction. |
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| Keywords: | NAH Cylindrical cavity Interior sound field Holographic surface |
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