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Active control of aircraft fly-over sound transmission through an open window

机译：通过打开的窗口主动控制飞机飞越声音传输

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摘要

This paper presents an experimental work on active control of sound transmission through a restricted opening bottom hinged window. The main goal of the work is to demonstrate the feasibility of the active technique to limit the loss of attenuation due to the aperture of windows, and its application to aircraft fly-over incident noise. The experimental window is placed in an exposed facade of a dwelling close to an airport and subject to fly-by aircraft noise. The active control is configured to cancel the pressure at the aperture using a single-input single-output feedforward adaptive system. As a result, a reduction of sound transmission is achieved with low power consumption. In global terms, an increase of almost 3 dB of transmission loss (with respect to the partially opened window insulation values) in the low frequency range (below 160 Hz and according to the National Danish Method for evaluating low frequency noise) is demonstrated, which is equivalent to a reduction of 50% in the loss of insulation caused by opening the window.
机译：本文介绍了通过限制的开口底部铰接窗主动控制声音传输的实验工作。这项工作的主要目的是证明主动技术的可行性，以限制由于窗孔引起的衰减损失，并将其应用于飞机飞越的入射噪声。实验窗口放置在靠近机场的住宅的外露外立面中，容易受到飞机噪声的影响。主动控制器被配置为使用单输入单输出前馈自适应系统消除孔口处的压力。结果，以低功耗实现了声音传输的减少。总体而言，在低频范围（低于160 Hz并根据丹麦国家噪声评估方法的低频评估）中，传输损耗（相对于部分打开的窗户绝缘值）增加了近3 dB，这表明相当于减少了因打开窗户造成的隔热损失50％。

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  • 来源
    《Applied Acoustics》 |2014年第10期|116-121|共6页
  • 作者

    T. Pamies; J. Romeu; M. Genesca; Robert Arcos;

  • 作者单位

    Acoustic and Mechanical Engineering Laboratory, Mechanical Engineering Department, Universitat Politecnica de Catalunya, Colom 11, 08222 Terrassa, Spain;

    Acoustic and Mechanical Engineering Laboratory, Mechanical Engineering Department, Universitat Politecnica de Catalunya, Colom 11, 08222 Terrassa, Spain;

    Acoustic and Mechanical Engineering Laboratory, Mechanical Engineering Department, Universitat Politecnica de Catalunya, Colom 11, 08222 Terrassa, Spain;

    Acoustic and Mechanical Engineering Laboratory, Mechanical Engineering Department, Universitat Politecnica de Catalunya, Colom 11, 08222 Terrassa, Spain;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Active noise control; Acoustic insulation; Aircraft noise;

    机译：主动噪音控制;隔音材料;飞机噪音;

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