| 李道江,陈航,戚茜,姜明.基于辐射阻分析的水声换能器基阵优化设计[J].声学技术,2010,(3):349~353 |
| 基于辐射阻分析的水声换能器基阵优化设计 |
| The optimal design of underwater transducer array based on radiation resistance analysis |
| 投稿时间：2009-03-18 修订日期：2009-06-14 |
| DOI： |
| 中文关键词: 辐射阻抗 换能器阵 互辐射阻 辐射功率 |
| 英文关键词: radiation impedance transducer array mutual radiation resistance radiating power |
| 基金项目:高等学校博士学科点专项科研基金(20070699018,20096102120012) |
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| 中文摘要: |
| 针对互辐射阻对基阵的辐射功率的影响,计算了圆面活塞水声换能器及其基阵的辐射阻抗;分析了二元阵的互辐射阻特性,当阵元半径小于λ/2时,阵元间互辐射影响较强且呈现一定的规律性,当阵元半径大于λ/2时,阵元间互辐阻影响非常小,因此试图通过改善互辐射阻来提高辐射功率,阵元的半径应小于λ/2;在分析了二元阵、均匀线列阵和N×N均匀平面阵的互辐射阻特性基础上,对阵元半径小于λ/2的基阵布阵方式进行了优化设计,使其能获得较大的辐射功率。研究结果表明:阵元半径小于0.22λ时,密排方式最佳;阵元半径0.22λ<a<λ/2时,阵元间距为5λ/4布阵方式最佳。 |
| 英文摘要: |
| To the effect of mutual impedance on array's radiation power,the radiation impedance of an underwater transducer array is computed;the mutual radiation resistance characteristics of two elements array is analyzed,the effect of mutual radiation is quite strong and disciplinary when element's radius is less than λ/2 but very weak when element's radius is bigger than λ/2;the mutual radiation resistance characteristics of two elements array,uniform linear array and N×N plane array are analyzed,the optimal design for higher radiation power of an array in which the element's radius is less than λ/2 is done.The result shows that: when element's radius is less than 0.22λ,the compact arrangement is the optimal one;when the radius of elements is bigger than 0.22λ,the distance of neighboring array elements should be 5λ/4. |
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