汽车工程

汽车工程

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车内声品质主观评价模型及中频噪声优化

张勇1,2，孟天1,2，王坤祥3，韩晨扬1,2   

  1. 1.重庆理工大学 车辆工程学院 重庆 400054； 2.重庆理工大学 汽车零部件先进制造技术教育部重点实验室 重庆 400054； 3.重庆市车辆检测研究院有限公司 重庆 400054
  • 出版日期:2019-03-05 发布日期:2019-03-05
  • 基金资助:
     

Subjective evaluation model of interior sound quality and optimization of intermediate frequency noise

    

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  • Online:2019-03-05 Published:2019-03-05
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摘要： 为研究某特种车车内声品质，对三辆不同类型特种车进行实车道路试验，建立了主观评价烦躁度和声品质客观参数之间的Kriging模型，通过滤波分析得到不同频段声品质参数对主观评价结果的影响。针对车内中频噪声，建立了混合FE-SEA模型对车内中频噪声进行计算,并与试验数据进行对比验证模型精度。计算了车内中频噪声的板件声学贡献度，找到对车内声压贡献较大的板件，最后对贡献量较大的板件进行噪声控制处理，有效降低了车内中频噪声。

关键词: 声品质, Kriging模型, 中频噪声, 降噪

Abstract: In order to study the interior car sound quality of a special vehicle, the road tests of three different types of special vehicles were carried out，and a kriging model was established between subjective irritability and objective parameters of sound quality. The effects of different frequency bands on the subjective evaluation were obtained through the filter analysis. For interior intermediate frequency noise, a hybrid FE-SEA model was established to calculate the intermediate noise, and compared with test data to verified model accuracy. The panel acoustical contribution of the intermediate frequency noise in the vehicle was calculated, and the panel with a large contribution to the interior sound pressure was found. Finally, the panel with a large contribution has been optimized with noise control processing, the intermediate frequency noise were reduced effectively.

Key words: sound quality, Kriging model, intermediate frequency noise, noise reduction

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