| Investigation of acoustic scale effects and boundary effects for the similitude model of underwater complex shell-structure |
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| 作者姓名： | WANG San-de YANG De-sen LIU Ning |
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| 作者单位： | [1]Noise Test andAnalysis Lab, Dalian Scientific Test ＆ Control Technology Institute, Dalian 116013, China [2]School of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China |
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| 基金项目： | 高等学校博士学科点专项科研项目 |
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| 摘 要： | In this paper, the acoustic scale effects and boundary effects for the similitude model of underwater complex shell-structure are investigated. The similitude conditions and relations between the similitude model and its prototype were studied in the references. This paper investigates the acoustic scale effects for the similitude model, which are influenced by loss factor, shear and rotatory inertia. At the same time, the boundary effects which are influenced by surface sound reflection are investigated in the experiment of similitude model. The results show that the acoustic scale effects may be controlled with model designing, the boundary effects can be controlled with experimental designing between the similitude model and its prototype.
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| 关 键 词： | 水下复合壳体结构 相似模型 声学尺度效应 声学边界效应 |
| 文章编号： | 1671-9433（2007）01-0031-05 |
| 收稿时间： | 2006-01-11 |
Investigation of acoustic scale effects and boundary effects for the similitude model of underwater complex shell-structure |
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| WANG San-de YANG De-sen LIU Ning.Investigation of acoustic scale effects and boundary effects for the similitude model of underwater complex shell-structure[J].Journal of Marine Science and Application,2007,6(1):31-35. |
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| Authors: | Wang San-de Yang De-sen Liu Ning |
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| Institution: | (1) Noise Test and Analysis Lab, Dalian Scientific Test & Control Technology Institute, Dalian, 116013, China;(2) School of Underwater Acoustic Engineering, Harbin Engineering University, Harbin, 150001, China |
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| Abstract: | In this paper, the acoustic scale effects and boundary effects for the similitude model of underwater complex shell-structure are investigated. The similitude conditions and relations between the similitude model and its prototype were studied in the references. This paper investigates the acoustic scale effects for the similitude model, which are influenced by loss factor, shear and rotatory inertia. At the same time, the boundary effects which are influenced by surface sound reflection are investigated in the experiment of similitude model. The results show that the acoustic scale effects may be controlled with model designing, the boundary effects can be controlled with experimental designing between the similitude model and its prototype. |
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| Keywords: | acoustic scale effects acoustic boundary effects similitude |
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