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首页> 外文期刊>Applied Acoustics >Statistical estimation of low frequency tyre/road noise from numerical contact forces
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Statistical estimation of low frequency tyre/road noise from numerical contact forces

机译：根据数字接触力对低频轮胎/道路噪声的统计估计

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摘要

This paper deals with the relation between tyre/road numerical contact data and close-proximity (CPX) rolling noise measurements. The noise was measured on several road surfaces together with the road texture in three dimensions on two-metre-long sections. A multi-asperity contact model was used to calculate successively the contact forces distribution and the contact pressure distribution between a tyre (slick or patterned) and the road during rolling. The correlation between third-octave contact force levels and noise levels was studied on a set of road surfaces with various textures. A high positive correlation was found at low frequency, which allows the estimation of noise levels by means of statistical relations for each third-octave band between 315 Hz and 1000 Hz for the slick tyre and between 315 Hz and 800 Hz for the patterned tyre. The results of the model are discussed in relation to the standard deviation of CPX measurements.
机译：本文探讨了轮胎/道路数值接触数据与近距离（CPX）滚动噪声测量之间的关系。在两米长的路段上，在多个路面上测量了噪音，并在三个维度上测量了路面纹理。使用多粗糙接触模型来连续计算滚动过程中轮胎（光滑的或有图案的）与道路之间的接触力分布和接触压力分布。在一组具有各种纹理的路面上研究了第三倍频程接触力水平与噪声水平之间的相关性。在低频处发现高正相关，这可以通过光滑轮胎的315 Hz和1000 Hz之间以及带花纹轮胎的315 Hz和800 Hz之间的每个第三倍频程的统计关系来估计噪声水平。讨论了与CPX测量标准偏差有关的模型结果。

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  • 来源
    《Applied Acoustics》 |2013年第9期|1085-1093|共9页
  • 作者

    G. Dubois; J. Cesbron; H.P. Yin; F. Anfosso-Ledee; D. Duhamel;

  • 作者单位

    LUNAM Universite, IFSTTAR, AME, LAE, CS4, 44344 Bouguenais, France;

    LUNAM Universite, IFSTTAR, AME, LAE, CS4, 44344 Bouguenais, France;

    Universite Paris-Est, Laboratoire Navier (UMR 8205), CNRS, ENPC, IFSTTAR, 77455 Marne-la-Vallee, France;

    LUNAM Universite, IFSTTAR, AME, LAE, CS4, 44344 Bouguenais, France;

    Universite Paris-Est, Laboratoire Navier (UMR 8205), CNRS, ENPC, IFSTTAR, 77455 Marne-la-Vallee, France;

  • 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

    Tyre/road noise; Tyre/road contact; Road roughness; Correlation; Statistical model;

    机译：轮胎/道路噪音;轮胎/道路接触;道路平整度;相关性统计模型;

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