虚拟车内噪声响度场分布的声源识别分析与优化

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振动与冲击 ›› 2016, Vol. 35 ›› Issue (3) : 139-144.

论文

高印寒1 张澧桐2 梁杰 1 王智博1 姜文君3

作者信息 +

The Virtual Loudness Mapping of Noise Source Identification Analysis and Optimization in Vehicle Interior Noise

GAO Yinhan1 ZHANG Litong2 LIANG Jie1 WANG Zhibo1 JIANG Wenjun3

Author information +

文章历史 +

摘要

针对传统声压级对车内噪声主观性考虑不足的缺陷，提出符合人双耳特性的虚拟车内噪声特征响度预测及声源识别方法。根据某重型商用车驾驶室内低频轰鸣声严重的问题，基于Zwicker响度模型，在matlab中建立频域的混响场特征响度计算模型。结合路试实验激励数据和驾驶室有限元声-固耦合模型，对驾驶室内噪声响度分布和响度结构板块贡献量进行计算，识别不同板材振动产生的辐射噪声分量对驾驶室内噪声品质频谱特性的影响。实验结果表明：相对于声压级，采用响度作为分析参数提高了驾驶室内噪声源识别精度，指导结构优化设计，改善车内声学品质具有更好的效果。

Abstract

This paper discussed the shortcomings of traditional sound pressures level, such as the lack of subjectivity consideration for noise and so on. A virtual method of prediction loudness characteristic and identifying noise sources which based on human auditory properties were applied to analyze vehicle interior noise. In order to reduce the commercial vehicle interior low booming , it was the first found a characteristic loudness calculation model of diffuse sound field in matlab, which was based on Zwicker model. Secondly, the excitation singles at the suspension mountings and responding singles of the interior noise were measured with road testing. And to predict and calculation the loudness mapping and structure contribution of the cab, an acoustic-structure coupled finite element model was established. In both applications, they were used for analysis relationship of vehicle interior noise source from different plates and sound quality frequency spectrum design. The results of noise source identification in both applications revealed that the loudness mapping of noise source identification method enabled the detection rattling sources from cab plates vibration to be more effective compared to the use of SPL. Thus, according this method, the acoustic optimization of the cab was designed and displayed excellent performance.

导出引用

高印寒1 张澧桐2 梁杰 1 王智博1 姜文君3. 虚拟车内噪声响度场分布的声源识别分析与优化[J]. 振动与冲击, 2016, 35(3): 139-144

GAO Yinhan1 ZHANG Litong2 LIANG Jie1 WANG Zhibo1 JIANG Wenjun3 . The Virtual Loudness Mapping of Noise Source Identification Analysis and Optimization in Vehicle Interior Noise[J]. Journal of Vibration and Shock, 2016, 35(3): 139-144

参考文献

[1]. Klaus Genuit. Product Sound Quality of Vehicle Noise–A Permanent Challenge for NVH Measurement Technologies [C]. SAE Paper, 2008-36-0517.
[2]. A.Wolfindale, G.Dunne, S.J.walsh. Veichle noise primary attribute balance[J]. Applied Acoustics. 2012 386-394.
[3]. Mohd Jailani, Mohd Nor, Mohammad Hosseini Fouladi. Index for vehicle acoustical comfort inside a passenger car [J]. Applied Acoustics. 69 (2008) 343–353
[4]. Hueser M G, Govindswamy K, Wolff K, et al. Sound quality and engine performance optimization development utilizing air-to-air simulation and interior noise synthesis[C]. Traverse City: SAE Noise and Vibration Conference and Exhibition, 2003-01-1652.
[5]. Wookeun Song, Haruki Saito, Karim Haddad. Improved Noise Source Identification Using Sound Quality Metrics Mapping in Vehicle Noise Measurements[C].SAE paper. 2011-01-1671.
[6]. 范蓉平，孟光，孙旭等. 基于心理声学响度分析的高速列车车内噪声评价[J].振动与冲击. 2005年第24卷第5期.
FAN Rong-ping, MENG Guang, SUN Xu, et al. Sound Loudness of High-speed Trains Evaluation [J]. Journal of Vibration and Shock .No5 Vol.24 2005.
[7]. Sang-Kwon Lee, Byung-Soo Kim, Hee-Chang Chae. Sound Quality Analysis of a Passenger Car Based on Rumbling Index [C]. SAE Paper. 2005-01-2481.
[8]. Vanni Falasca, Francesca Bandera, Giorgio Irato. Acoustic Quality Evaluation of Heavy Commercial Vehicles [C]. SAE Paper, 2010-01-1411
[9]. Glenn Pietila, Teik C Lim. Intelligent systems approaches to product sound quality evaluations – A review [J] . Applied Acoustics. 987–1002 2012.
[10]. 徐中明，周小林，贺岩松等. 符合人耳听觉特性的车内异常噪声分析[J]. 汽车工程学报. 2012 年5月第3期第2卷.
XU Zhong-ming, ZHAO Xiao-lin, HE Yan-song, et al. Analysis of Interior Noise According with Human Auditory Properties [J]. Chinese Journal of Automotive Engineering. Vol2 No3 May 2012.
[11]. Davide Caprioli , Claudio Bertolini , Ciro Gaudino. Improved NVH Performance Optimization of Damping and Shape of Vehicle Panels [C]. SAE Paper, 2005-01-2329
[12]. 陈书明，彭登志，王登峰等. 车内低频噪声声固耦合及试验优化设计[J]. 吉林大学学报（工学版）.2014年第44卷46期
CHEN Shu-ming, PENG Zhi-deng, WANG Deng-feng, et al. Acoustic-structure coupling and optimal experimental design for automotive interior low frequency noise [J]. Journal of Jilin University (Engineering and Technology). Vol 44 No 6 Nov 2014
[13]. 张志飞，倪新帅，徐中明等. 利用阻尼材料改善驾驶室声学特性的研究[J]. 机械工程学报. vol48 No16 Aug 2012.
ZHANG Zhi-fei, NI Xin-shuai, XU Zhong-ming, et al. Research on Improvement of Cab Acoustic Characteristics Using Damping Material [J], Journal of Mechanical Engineering. vol48 No16Aug 2012.
[14]. 张志勇,张义波,刘鑫等. 重型卡车驾驶室结构噪声预测与板件声学贡献度分析[J].振动与冲击,2014,33(13):67-71.
ZHANG Zhi-yong, ZHANG Yi-bo, LIU Xin, et al. Structure-borne Noise Prediction and Panel Acoustic Contribution Analysis of a Heavy truck cab [J]. Journal of Vibration and Shock, 2014,33(13):67-71.