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首页> 外文期刊>Wind Engineering >Noise Source Localization on a Small Wind Turbine Using a Compact Microphone Array with Advanced Beamforming Algorithms: Part Ⅱ -A Study of Mechanical Noise from Nacelle Using a Wind Turbine Drive Train Simulator
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Noise Source Localization on a Small Wind Turbine Using a Compact Microphone Array with Advanced Beamforming Algorithms: Part Ⅱ -A Study of Mechanical Noise from Nacelle Using a Wind Turbine Drive Train Simulator

机译：使用具有先进波束成形算法的紧凑型麦克风阵列在小型风力涡轮机上进行噪声源定位：第二部分-使用风力涡轮机传动系统模拟器对机舱产生的机械噪声进行研究

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摘要

The main goal of this study was to separate and evaluate the noise contribution of each sub-component of a small scale wind turbine drive train that contributes to the overall mechanical noise inside the nacelle of a small (8 kW) wind turbine. The experiments were performed in a drive train simulator that housed the drive train of a Viryd 8000 wind turbine. Different wind speeds were simulated on the test stand through a drive system consisting of a motor, gearbox and flywheel. In order to evaluate the overall sound generation single microphone acoustic measurements were made. The frequency of sound generation was observed to be the same as that of vibrations of the drive train measured using two accelerometers. Sound radiated by each component of the drive train was evaluated through acoustic beamforming using a compact microphone array in conjunction with advanced beamforming algorithms. A strong relationship between the drive train power generation, and sound emitted by various mechanical components was observed. A unique contribution of this study is our ability to localize, separate and quantify noise from sub-components in a complex functioning wind turbine drive train.
机译：这项研究的主要目的是分离和评估小型风力涡轮机传动系统各子组件的噪声影响，这些噪声对小型（8 kW）风力涡轮机机舱内部的整体机械噪声有贡献。实验是在装有Viryd 8000风力涡轮机传动系的传动系模拟器中进行的。通过由电机，变速箱和飞轮组成的驱动系统，在试验台上模拟了不同的风速。为了评估整体声音的产生，对单个麦克风进行了声学测量。观察到声音的产生频率与使用两个加速度计测得的动力传动系统的振动频率相同。使用紧凑型麦克风阵列结合先进的波束形成算法，通过声学波束成形来评估传动系统每个组件辐射的声音。观察到动力传动系统的发电与各种机械部件发出的声音之间有很强的关系。这项研究的独特贡献在于，我们能够对复杂运行的风力涡轮机传动系统中子组件的噪声进行定位，分离和量化。

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  • 来源
    《Wind Engineering》 |2014年第1期|89-100|共12页
  • 作者

    Hirenkumar Patel; Rakesh C. Ramachandran; Ganesh Raman; Yong Jiang; Xiaodong Shi; Mahesh Krishnamurthy;

  • 作者单位

    MMAE Department, Illinois Institute of Technology, 10 W 32nd Street, Suite 243, Chicago, IL 60616, USA;

    MMAE Department, Illinois Institute of Technology, 10 W 32nd Street, Suite 243, Chicago, IL 60616, USA;

    MMAE Department, Illinois Institute of Technology, 10 W 32nd Street, Suite 243, Chicago, IL 60616, USA;

    ECE Department, Illinois Institute of Technology, 3301 S Dearborn street, Suite 103, Chicago, IL 60616, USA;

    ECE Department, Illinois Institute of Technology, 3301 S Dearborn street, Suite 103, Chicago, IL 60616, USA;

    ECE Department, Illinois Institute of Technology, 3301 S Dearborn street, Suite 103, Chicago, IL 60616, USA;

  • 收录信息 美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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