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Calculation models for analysing the sound insulating properties of homogeneous single baffles used in vibroacoustic protection

机译:用于振动声防护的均质单隔板隔声性能分析计算模型

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The article presents the results of laboratory tests and calculations, using selected theoretical models, regarding the airborne sound insulation of five homogeneous single baffles. The analysed materials of various thickness, such as steel, aluminium, PVC, acrylic and plexiglass, are used in the construction of walls in vibroacoustic protection as sound absorbing and insulating enclosures or acoustic barriers. Based on the analysis of the obtained results, a new calculation model of sound insulation for single homogeneous baffles used in passive noise control methods was proposed. A comparative analysis of computational models for these materials showed that the proposed model is the most accurate among traditional theoretical ones, both in terms of the frequency characteristic and the single-number index of sound insulation. Verification of the new model was carried out with reference to the results of experimental tests, results obtained using commercial software and experimental results from another testing laboratory of building partitions, concerning several glass plates, which may also be used as elements of vibroacoustic protection. (C) 2018 Elsevier Ltd. All rights reserved.
机译:本文介绍了使用选定的理论模型对五个均质单隔板的空气传播隔声进行实验室测试和计算的结果。所分析的各种厚度的材料,例如钢,铝,PVC,丙烯酸和有机玻璃,都被用于建筑结构中的隔声保护,作为吸声和隔音罩或声屏障。在对获得的结果进行分析的基础上,提出了一种用于被动噪声控制方法的均质隔声板隔声计算模型。对这些材料的计算模型的比较分析表明,无论是在频率特性还是在隔音的单一指标方面,所提出的模型在传统理论模型中都是最准确的。新模型的验证是参考实验测试的结果,使用商业软件获得的结果以及来自另一间建筑隔断的测试实验室的实验结果,涉及几个玻璃板,这些玻璃板也可以用作振动声保护的元素。 (C)2018 Elsevier Ltd.保留所有权利。

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