| 旋转体源声辐射的近场分析 |
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| 引用本文： | 居鸿宾,钟芳源.旋转体源声辐射的近场分析[J].航空动力学报,1995,10(2):131-134,199. |
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| 作者姓名： | 居鸿宾 钟芳源 |
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| 作者单位： | 1.清华大学 |
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| 摘 要： | 详细讨论了旋转运动声源的近声场频域解。所得近场解析式表现为远场解基础上的近场修正。范例计算显示出这种修正的特点, 并表明源的旋转半径和轴向偏移对声场影响的性质。风扇实验初步证明了文中分析。
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| 关 键 词： | 声辐射 气动声学 声源 频域分析 |
| 收稿时间： | 6/1/1994 12:00:00 AM |
| 修稿时间： | 1994/10/1 0:00:00 |
NEAR SOUND FIELD ANALYSIS OF A ROTATING SOURCE |
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| Ju Hongbin and Zhong Fangyuan.NEAR SOUND FIELD ANALYSIS OF A ROTATING SOURCE[J].Journal of Aerospace Power,1995,10(2):131-134,199. |
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| Authors: | Ju Hongbin and Zhong Fangyuan |
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| Institution: | 1.Deot.of Engineering Mechanics Tsinghua University,Beijing 1000812.Shanghai Jiaotong University |
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| Abstract: | On the basis of moving source radiation theory,this paper discusses the sound solution of a rotating source in frequency domain.Emphasis is laid on near sound field which has three additional sources in contrast to far field.The computation reveals that the near sound field produced by these "additional sources" distributes in discrete viewing angles.Radial and axial deviations affect sound field respectively around the rotating plane and axial area,and their maximum connections have different characteristics.The analysis is proved preliminarily by a fan experiment. |
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| Keywords: | Sound Radiation Aeroacoustics Sound source Frequency analysis |
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