| 面声源的非轴向辐射的近场研究 |
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| 引用本文： | 王宣,于建勇.面声源的非轴向辐射的近场研究[J].环境工程,1995,13(6):31-34. |
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| 作者姓名： | 王宣 于建勇 |
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| 作者单位： | 中国矿业大学数力系，南京大学声学研究所 |
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| 基金项目： | 南京大学近代声学实验室资助 |
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| 摘 要： | 本文提出了一种对大面积有壁障面声源非轴向辐射时近场研究的计算方法。在对声场的理论计算中分别考虑了面声源中各点间的干涉和由壁障引起的衍射。并详细介绍了为验证理论计算而进行的缩尺模型实验以及对所得结果的讨论和比较，本研究所得的面声源非轴向辐射时的近场规律对实际处理大面积噪声源辐射时阴影范围的确定有着很好的指导意义。
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| 关 键 词： | 面声源，非轴向辐射，噪声源 |
NEAR-FIELD STUDY OF UN-AXIAL RADIATION FROM A LARGE AREA NOISE SOURCE |
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| Wang Xuan,Yu Jianyong, Wu Qixue, Zhu Xiaotian.NEAR-FIELD STUDY OF UN-AXIAL RADIATION FROM A LARGE AREA NOISE SOURCE[J].Environmental Engineering,1995,13(6):31-34. |
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| Authors: | Wang Xuan Yu Jianyong Wu Qixue Zhu Xiaotian |
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| Abstract: | Institute of Acoustics, Nanjing University Abstract: A new methord of studying un-axial radiation from a large wall-mounted area noise source was presented in this paper. The interference between points in the area noise source and the diffraction caused by wall were taken acount of in the calculation. The scale module for verificating the theory was intruduced and comparison between calculated and experimental results was given as well. The study is very useful in locating shadow area during handling big area niose source problem. |
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| Keywords: | area noise source unaxis radiation niose source |
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