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| 圆柱形通道结构橡胶声障板 | |
| 引用本文： | 张德志,周利生,翁志学,单国荣.圆柱形通道结构橡胶声障板[J].应用声学,2004,23(2):45-48,44. |
| 作者姓名： | 张德志 周利生 翁志学 单国荣 |
| 作者单位： | 1. 第七一五研究所,富阳,311400；浙江大学,杭州,310027 2. 第七一五研究所,富阳,311400 3. 浙江大学,杭州,310027 |
| 摘 要： | 本文介绍了具有圆柱通道的橡胶水声反声障板的机理，通过静态近似得到此种橡胶声学参数的计算公式，测试了相关材料的动态力学性能，并对障板的声学特性进行了理论计算和分析，给出了不同频率下的反声性能随材料损耗因子、剪切模量及厚度的变化规律，并对模型进行了试验验证。 |
| 关 键 词： | 橡胶声障板 力学性能 声学特性 损耗因子 圆柱通道结构 |
Acoustic performance of rubber baffle with cylindrical duct |
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| ZHANG De-Zhi,ZHOU Li-Sheng,WENG Zhi-Xue and SHAN Guo-Rong.Acoustic performance of rubber baffle with cylindrical duct[J].Applied Acoustics,2004,23(2):45-48,44. | |
| Authors: | ZHANG De-Zhi ZHOU Li-Sheng WENG Zhi-Xue and SHAN Guo-Rong |
| Institution: | Hangzhou Applied Acoustics Research Institute, Fuyang 311400;Hangzhou Applied Acoustics Research Institute, Fuyang 311400;Institute of Polymer Engineering, Zhejiang University, Hangzhou 310027;Institute of Polymer Engineering, Zhejiang University, Hangzhou 310027 |
| Abstract: | In this paper, rubber in the form of cylindrical duct is used as underwater acoustic reflection baffle, its mechanism is described. The formula for calculating the main acoustic performances of baffle are derived by static approximation. The elementary material of baffle are tested, indicating the dynamic mechanical performances. For an immersed baffle model, theoretical calculation and analysis have been carried out at different frequencies, giving baffle performance variation with loss factor, shear modulus as well as thickness of this kind of material. |
| Keywords: | Cylindrical duct Rubber Loss factor Dynamic shear modulus Reflection baffle |
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