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汽油机音调噪声评价模型的改进

刘磊 吴坚 高文志 刘钊

刘磊, 吴坚, 高文志, 刘钊. 汽油机音调噪声评价模型的改进[J]. 机械科学与技术, 2018, 37(8): 1286-1292. doi: 10.13433/j.cnki.1003-8728.20180011
引用本文: 刘磊, 吴坚, 高文志, 刘钊. 汽油机音调噪声评价模型的改进[J]. 机械科学与技术, 2018, 37(8): 1286-1292. doi: 10.13433/j.cnki.1003-8728.20180011
Liu Lei, Wu Jian, Gao Wenzhi, Liu Zhao. Improvement of Tonal Noise Evaluation Model in Gasoline Engine[J]. Mechanical Science and Technology for Aerospace Engineering, 2018, 37(8): 1286-1292. doi: 10.13433/j.cnki.1003-8728.20180011
Citation: Liu Lei, Wu Jian, Gao Wenzhi, Liu Zhao. Improvement of Tonal Noise Evaluation Model in Gasoline Engine[J]. Mechanical Science and Technology for Aerospace Engineering, 2018, 37(8): 1286-1292. doi: 10.13433/j.cnki.1003-8728.20180011

汽油机音调噪声评价模型的改进

doi: 10.13433/j.cnki.1003-8728.20180011
详细信息
    作者简介:

    刘磊(1991-),硕士研究生,研究方向为汽车发动机NVH,Lei_Liu92@163.com

    通讯作者:

    高文志,教授,博士,gaowenzhi@tju.edu.cn

Improvement of Tonal Noise Evaluation Model in Gasoline Engine

  • 摘要: 汽油机工作时辐射的噪声有很大一部分是由齿轮、风扇等旋转机械部件产生的音调噪声,在定量评估用户的主观偏好性时,需要考虑音调噪声的负面影响。然而,研究中发现Aure's音调度与主观偏好性的相关性很低,不足以充分反映音调特性对主观感受的影响。详细地分析了Aure's音调度的数学模型,找到了Aure's音调度与主观偏好性的相关性低的原因,依据音噪比(TNR)能更好地表达噪声中音调分量所占的能量比,且与主观感受的相关性较好,提出基于TNR对Aure's模型进行改进,建立了一种改进的音调评估模型。结果表明,所提出的改进模型在汽油机声品质研究中有足够的相关性,提高了音调度模型的准确性。
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出版历程
  • 收稿日期:  2017-08-26
  • 刊出日期:  2018-08-05

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