| 基于面元法及模型试验的船舶螺旋桨噪声预报方法 |
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| 引用本文： | 张永坤,熊鹰.基于面元法及模型试验的船舶螺旋桨噪声预报方法[J].武汉理工大学学报(交通科学与工程版),2008,32(5). |
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| 作者姓名： | 张永坤 熊鹰 |
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| 作者单位： | 海军工程大学船舶与海洋工程系,武汉,430033 |
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| 摘 要： | 对某船螺旋桨噪声进行了预报.高频噪声预报采用模型试验方法进行.在国家重点试验室大型循环水槽中完成了桨模高频噪声的测量,测试结果经量纲一的量方法换算至实船.采用面元法计算非定常力,通过力与声级的关系换算出低频离散谱噪声.求解出螺旋桨随机连续性力.然后换算出低频连续谱噪声.从预报结果总结出螺旋桨噪声随频率的变化规律以及速度对噪声的影响.
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| 关 键 词： | 螺旋桨 噪声 循环水槽 面元法 |
Prediction of Ship Propeller Noise Using Surface Panel Method and Experimental Investigations |
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| Zhang Yongkun,Xiong Ying.Prediction of Ship Propeller Noise Using Surface Panel Method and Experimental Investigations[J].journal of wuhan university of technology(transportation science&engineering),2008,32(5). |
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| Authors: | Zhang Yongkun Xiong Ying |
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| Institution: | Dept.of Naval Architecture & Ocean Eng.;Naval Univ.of Engineering;Wuhan 430033 |
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| Abstract: | The ship propeller noise has been investigated.The high frequency noise of shippropeller model has been observed and measured in a large circulating tunnel atthe national key lab.Then the high frequency noise of full-scale propeller has been calculated by nondimensional method.The low frequency discrete noise is gained according to the relation of sound level and the unsteady forces of propeller that is calculated by surface panel method.The low frequency continuous noise is achieved by calculating random c... |
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| Keywords: | propeller noise circulating water channel surface panel method |
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