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Urban sound energy reduction by means of sound barriers

机译：通过声屏障减少城市声能

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In urban environment, various heating ventilation and air conditioning appliances designed to maintain indoor comfort become urban acoustic pollution vectors due to the sound energy produced by these equipment. The acoustic barriers are the recommended method for the sound energy reduction in urban environment. The current sizing method of these acoustic barriers is too difficult and it is not practical for any 3D location of the noisy equipment and reception point. In this study we will develop based on the same method a new simplified tool for acoustic barriers sizing, maintaining the same precision characteristic to the classical method. Abacuses for acoustic barriers sizing are built that can be used for different 3D locations of the source and the reception points, for several frequencies and several acoustic barrier heights. The study case presented in the article represents a confirmation for the rapidity and ease of use of these abacuses in the design of the acoustic barriers.
机译：在城市环境中，由于这些设备产生的声能，旨在维持室内舒适度的各种采暖通风和空调设备成为城市的声污染载体。推荐使用隔音屏障来减少城市环境中的声能。这些声屏障的当前尺寸确定方法太困难，并且对于嘈杂设备和接收点的任何3D位置都不可行。在这项研究中，我们将基于相同的方法开发一种新的简化的声屏障尺寸调整工具，并保持与传统方法相同的精度。构建了用于声屏障尺寸调整的算盘，这些算盘可用于源和接收点的不同3D位置，几个频率和几个声屏障高度。本文中介绍的研究案例表明，这些隔声在声屏障设计中的快速性和易用性得到了证实。

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