| 一种螺旋桨模型噪声的试验研究 |
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| 引用本文： | 钱晓南,顾其昌,张承懿.一种螺旋桨模型噪声的试验研究[J].中国造船,1986(2). |
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| 作者姓名： | 钱晓南 顾其昌 张承懿 |
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| 作者单位： | 上海交通大学
(钱晓南，顾其昌)，上海交通大学(张承懿) |
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| 摘 要： | 螺旋桨模型试验中,有时噪声谱中出现窄带噪声峰,有人认为这个峰是梢涡空泡噪声,是“看不见的梢涡空泡”引起的,但这种解释未经实验证明。本文用实验证实这种窄带噪声峰与桨叶梢部流动有关,无论梢涡空泡可见与否,都可能出现。
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EXPERIMENTAL INVESTIGATION OF A NARROW BAND NOISE FROM PROPELLER MODELS |
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| Qian Xiaonan,Gu Qichang and Zhang Chengyi.EXPERIMENTAL INVESTIGATION OF A NARROW BAND NOISE FROM PROPELLER MODELS[J].Shipbuilding of China,1986(2). |
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| Authors: | Qian Xiaonan Gu Qichang and Zhang Chengyi |
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| Institution: | Shanghai Jiao Tong University |
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| Abstract: | Experiments of noise from propeller models show that a narrow band noise peak in general noise spectrum occurred sometimes. This fact is commonly treated as tip vortex cavitation noise. It was hypothesised that narrow band noise peak is caused by "no visible tip vortex cavitation", but direct experimental proof of this conclusion is lacking. In this paper an experimental investigation was carried out, and it is proved: no matter whether tip vortex cavitation is visible, narrow band noise peak is connected with the flow near the tip of propeller. |
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| Keywords: | -Ship propulsion narrow band noise of propeller propeller models tests |
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