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http://dx.doi.org/10.5050/KSNVE.2016.26.1.097

A Study on Interior Noise Contribution Analysis of Trains based on OTPA Method  

Jung, Jae-Deok (Department of Naval Architecture and Ocean Engineering, Seoul National University)
Hong, Suk-Yoon (Department of Naval Architecture and Ocean Engineering, Seoul National University)
Song, Jee-Hun (Department of Naval Architecture and Ocean Engineering, Chonnam National University)
Kwon, Hyun-Woung (Department of Naval Architecture and Ocean Engineering, Koje College)
Noh, Hee-Min (Korea Railroad Research Institute)
Kim, Jun-Kon (Korea Railroad Research Institute)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.26, no.1, 2016 , pp. 97-103 More about this Journal
Abstract
The sensitivity of interior noise that the passengers perceive is comparatively high in the train, and structure-borne and air-borne types of noises come into the train. In this paper, to analyze contributions of these noise sources operational transfer path analysis(OTPA) is used. OTPA has some advantages of executing the contribution rates of several sources simultaneously, and in this work, 29 points are measured while running. Transfer functions between reference measurement points and response measurement points are calculated by the singular value decomposition(SVD) and Principal component analysis(PCA) method, and the frequency characteristics of the noise source are successfully derived. Also the interior noise is predicted and compared with measurement data to show the reliability.
Keywords
OTPA; Structure-borne Noise; Air-borne Noise; Interior Noise;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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