基于ANSYS的吸声覆盖层声学性能计算与分析

陶 猛;卓琳凯

振动与冲击 ›› 2011, Vol. 30 ›› Issue (1) : 87-90.

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PDF(1344 KB)
振动与冲击 ›› 2011, Vol. 30 ›› Issue (1) : 87-90.
论文

基于ANSYS的吸声覆盖层声学性能计算与分析

  • 陶 猛1;卓琳凯2
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Simulation and Analysis of Acoustic Performanceof Sound Absorption Coating Using ANSYS Software

  • Tao Meng1;ZHUO Linkai 2
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摘要

采用ANSYS有限元软件计算分析了平面波垂直入射条件下吸声覆盖层的声学性能。建立了ANSYS中阻尼的输入量与材料损耗因子的关系。对含圆柱空腔的吸声覆盖层分别采用ANSYS和二维解析理论计算,结果表明该方法的正确性,指出在二维解析理论中简化吸声覆盖层单元为粘弹性圆柱管结构是足够精确的。

Abstract

In the case of normal incidence, the acoustic performance of sound absorption coating is analyzed by using ANSYS software. The relationship between the damp item in the ANSYS code and the loss factor of material is obtained. The acoustic performances of sound absorption coating which contains periodically distributed cylindrical cavities are evaluated by both ANSYS code and two-dimensional analytic model, and good agreements show the applicability of ANSYS code. Furthermore, regarding the cell as a viscoelastic cylindrical tube is accurate enough in the two-dimensional analytic model.

关键词

ANSYS / 吸声覆盖层 / 二维解析理论

Key words

ANSYS / Sound absorption coating / Two-dimensional analytic model

引用本文

导出引用
陶 猛;卓琳凯. 基于ANSYS的吸声覆盖层声学性能计算与分析[J]. 振动与冲击, 2011, 30(1): 87-90
Tao Meng;ZHUO Linkai . Simulation and Analysis of Acoustic Performanceof Sound Absorption Coating Using ANSYS Software[J]. Journal of Vibration and Shock, 2011, 30(1): 87-90

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