Vehicle Interior Noise Source Identification based on wavelet partial-coherence analysis

doi:10.13465/j.cnki.jvs.2018.07.024

	Vehicle Interior Noise Source Identification based on wavelet partial-coherence analysis
	Huang, Haibo 1; Li, Renxian 1; Ding, Weiping 1; Yang, Mingliang 1; Chen, Zhijun2
	2018-04-15
发表期刊	Zhendong yu Chongji/Journal of Vibration and Shock
ISSN	1000-3835
卷号	37 期号:7 页码:157-163
摘要	To quickly and accurately identify complicated and multi-correlated vehicle interior noise sources, a noise source identification method based on wavelet partial-coherence analysis was proposed. The approach was performed through the continuous complex wavelet transformation and the time-frequency partial-coherence analysis to get time-frequency partial coherence functions of noise source's measured point and receiver measured point, and relations between them and transient phase. This was illustrated with simulated signals. The proposed method was utilized to identify an abnormal noise source in a vehicle, and then to improve the sound quality of interior noise with identified results. The results showed that the interior abnormal noise source is induced due to the engine exciting the front sub-frame to cause vibration and noise of the connecting point between the sub-frame and car body; through optimizing the connecting point rubber bushes, the subjective and objective evaluations of vehicle interior sound quality are improved evidently, the effectiveness of the proposed noise source identification method is verfied. © 2018, Editorial Office of Journal of Vibration and Shock. All right reserved.
关键词	Acoustic noise Acoustic noise measurement Automobile manufacture Sound reproduction Vehicles Vibrations (mechanical) Wavelet analysis Connecting points Noise source identification Partial coherence Partial coherence analysis Simulated signals Sound Quality Subjective and objective evaluations Vehicle interior noise
DOI	10.13465/j.cnki.jvs.2018.07.024
收录类别	EI
语种	中文
出版者	Chinese Vibration Engineering Society
EI入藏号	20183505745024
EI分类号	662.1 Automobiles ; 751.4 Acoustic Noise ; 752.3 Sound Reproduction ; 913.3 Quality Assurance and Control ; 921 Mathematics ; 931.1 Mechanics
原始文献类型	Journal article (JA)
文献类型	期刊论文
条目标识符	https://ir.cqcet.edu.cn/handle/39TD4454/3175
专题	国际交流与合作发展处
作者单位	1.College of Mechanical and Engineering, Southwest Jiaotong University, Chengdu; 610031, China; 2.Chongqing College of Electronic Engineering, Chongqing; 401331, China
推荐引用方式 GB/T 7714	Huang, Haibo,Li, Renxian,Ding, Weiping,et al. Vehicle Interior Noise Source Identification based on wavelet partial-coherence analysis[J]. Zhendong yu Chongji/Journal of Vibration and Shock,2018,37(7):157-163.
APA	Huang, Haibo,Li, Renxian,Ding, Weiping,Yang, Mingliang,&Chen, Zhijun.(2018).Vehicle Interior Noise Source Identification based on wavelet partial-coherence analysis.Zhendong yu Chongji/Journal of Vibration and Shock,37(7),157-163.
MLA	Huang, Haibo,et al."Vehicle Interior Noise Source Identification based on wavelet partial-coherence analysis".Zhendong yu Chongji/Journal of Vibration and Shock 37.7(2018):157-163.