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http://dx.doi.org/10.5050/KSNVN.2008.18.11.1206

Transfer Path Analysis and Interior Noise Estimation of the Road Noise Using Multi-dimensional Spectral Analysis Method  

Park, Sang-Gil (한양대학교 대학원 기계공학과)
Kang, Kwi-Hyun (한양대학교 대학원 기계공학과)
Hwang, Sung-Wook (㈜넥센타이어)
Oh, Ki-Seok (㈜넥센타이어)
Rho, Kuk-Hee (㈜넥센타이어)
Oh, Jae-Eung (한양대학교 기계공학부)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.18, no.11, 2008 , pp. 1206-1212 More about this Journal
Abstract
This paper presents a the method for estimating the noise source contribution on the road noise of the vehicle in a multiple input system where the input sources may be coherent with each other. By coherence function method, it is found that the biggest part of the noise source in the road noise is generated by structural vibration on the mechanical-acoustic transfer functions of vehicles. This analysis is modeled as four input/single output system because the noise is generated with four wheels that mechanism of the road noise is very complicated. The coherence function method is proved to be useful tool for identifying of noise source. The overall levels of the interior noise be coherence function method are compared with those measured and calculated by the frequency response function approach using mechanical excitation test. The experimental results have shown a good agreement with the results calculated by the coherence function method when the input sources are coherent strongly each other. The estimation of the road noise indicates that significant coherent can be achieved in the vehicle interior noise.
Keywords
MDSA; FRF; TPA; Road Noise; PCF; MCF;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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