• CN:11-2187/TH
  • ISSN:0577-6686

›› 1998, Vol. 34 ›› Issue (5): 76-84.

• 论文 • 上一篇    下一篇

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声近场综合试验解析技术及其在车外噪声分析中的应用

蒋伟康;高田博;西择男   

  1. 上海交通大学动力与能源工程学院;五十铃汽车公司车辆研究试验部
  • 发布日期:1998-09-01

ACOUSTICAL NEARFIELD EXPERIMENTAL COMPREHENSIVE TECHNIQUE WITH ITS APPLICATIONS IN STUDYING VEHICLE EXTERIOR NOISE

Jiang Weikang;Hiroshi Ta kata;Takuo Nishi   

  1. Shanghai Jiaotong University Vehicle Research & Experiment Dept., Isuzu Motors Ltd., Frjisawa-shi, Kanagawa-ken, 252 Japan
  • Published:1998-09-01

摘要: 开发了声近场综合试验解析技术,包括参考话筒位置选择,非相干源信号的特性辨识,各声源传播途径可视化,各声源对系统输出的贡献评价以及输出预测等方面的新方法。试验研究和实车应用的成功表明,这些新方法可以适用于复杂的工程实际。

关键词: 汽车, 声近场, 声全息, 试验分析, 噪声

Abstract: The acoustical nearfield comprehensive techniques are developed, which includes some new methods in finding out the best positions of reference microphone, identifying the incoherent sources, understanding the transmission paths of various incoherent source, evaluating the contribution of each source and predicting the output. The experiments and successful applications to studying vehicle exterior noise show that these new techniques are able to be used in the analysis of complex engineering system.

Key words: Acoustical holography, Acoustical nearfield, Experimental analysis, Noise Vehicle

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