大功率扬声器阵列互辐射作用等效电路分析

南京大学学报(自然科学版) ›› 2015, Vol. 51 ›› Issue (7): 134–.

大功率扬声器阵列互辐射作用等效电路分析

张亮永*，许学忠，方厚林，张芳，刘阳

出版日期:2015-12-26 发布日期:2015-12-26
作者简介:(西北核技术研究所,西安,710024)
基金资助:
收稿日期：2015-06-30
*通讯联系人，E-mail: zhangliangyong@nint.ac.cn

Equivalent circuit model analysis for mutual interaction on high-power loudspeakers

Zhang Liangyong*Xu XuezhongFang HoulinZhang FangLiu Yang

Online:2015-12-26 Published:2015-12-26
About author: (Northwest Institute of Nuclear Technology, Xian 710024, China)

摘要/Abstract

摘要： 合理的利用阵元间互辐射作用，可以优化组阵设计，更好的控制波束。本文基于扬声器等效电路模型和Pritchard互辐射阻抗公式，对大功率扬声器三元组合阵的互辐射作用进行了研究，通过仿真得到了互辐射作用随频率和阵元间距对阵元输入电压阵列轴向声压的影响规律，并进行了实验验证。仿真和实验结果表明，频率为谐振频率1100 Hz、阵元间距为0.2 m时互辐射作用对阵元输入电压和轴向声压有明显影响，频率800 Hz~1500 Hz范围的仿真结果和实验结果符合好。

Abstract: Mutual interaction on compression driver arrays can be used for the sound wave beam deflection and optimization design. Based on the electro-mechanical-acoustic analogy theory and the Pritchard’s approximation, the equivalent circuit model of the compression driver array was established and programmed to simulate the mutual interaction effects of the three-element array. Finally, the simulation results were verified through experiments. The simulation and experiment results show that the mutual interaction peaks at the resonance frequency 1100 Hz, declining with the element distance peaking at 0.2 m. Besides, there is little difference between the equivalent circuit model results and the experiment results when the frequency is in the range from 800 Hz to 1500 Hz.

张亮永*，许学忠，方厚林，张芳，刘阳. 大功率扬声器阵列互辐射作用等效电路分析[J]. 南京大学学报(自然科学版), 2015, 51(7): 134–.

Zhang Liangyong*Xu XuezhongFang HoulinZhang FangLiu Yang. Equivalent circuit model analysis for mutual interaction on high-power loudspeakers[J]. Journal of Nanjing University(Natural Sciences), 2015, 51(7): 134–.

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