| 分布源边界点法在声场全息重建和预测中的应用 |
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| 引用本文： | 毕传兴,陈剑,周广林,陈心昭.分布源边界点法在声场全息重建和预测中的应用[J].机械工程学报,2003,39(8):81-85. |
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| 作者姓名： | 毕传兴 陈剑 周广林 陈心昭 |
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| 作者单位： | 合肥工业大学动态测试中心,合肥,230009 |
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| 基金项目： | 国家自然科学基金(50275044)，高等学校博士学科点专项科研基金(20020359005)，安徽省自然科学基金(00047418) |
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| 摘 要： | 提出了以分布源边界点法作为声场的全息变换算法,建立了基于分布源边界点法的声全息重建和预测的数学模型。与基于边界元法的声全息重建和预测模型相比,此法避开了变量插值、数值计算和奇异积分的处理,具有计算速度快、计算精度高、计算稳定性好和简单易懂等优点,因此在工程实践中有着广泛的应用前景。
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| 关 键 词： | 声全息 边界点 分布源 声辐射 |
| 修稿时间： | 2002年8月14日 |
RECONSTRUCTION AND PREDICTION OF ACOUSTIC FIELD IN THE DISTRIBUTED SOURCE BOUNDARY POINT METHOD BASED NEARFIELD ACOUSTIC HOLOGRAPHY |
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| Bi Chuanxing Chen Man Zhou Guanglin,Chen Xinzhao.RECONSTRUCTION AND PREDICTION OF ACOUSTIC FIELD IN THE DISTRIBUTED SOURCE BOUNDARY POINT METHOD BASED NEARFIELD ACOUSTIC HOLOGRAPHY[J].Chinese Journal of Mechanical Engineering,2003,39(8):81-85. |
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| Authors: | Bi Chuanxing Chen Man Zhou Guanglin Chen Xinzhao |
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| Affiliation: | Hefei University of Technology |
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| Abstract: | The distributed source boundary point method (DSBPM) is proposed to be a transform algorithm of nearfield acoustic holography (NAH). The models to reconstruct and predict the acoustic quantities of acoustic field are established. Compared with the boundary element method (BEM) based NAH, the variable interpolation, the numerical calculation and the disposal of singular integral are avoided in this method. And it has such merits as follows: the quick calculation speed, the high calculation precision, the good calculation stability, and the simple and pellucid calculation procedure. So it has a good prospect of application in engineering field. |
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| Keywords: | Acoustic holography Boundary point Distributed source Acoustic radiation |
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