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Lee, Seungchul
iSystems Design Lab
Research Interests
  • Intelligent design for products and manufacturing systems

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Investigations of denoising source separation technique and its application to source separation and identification of mechanical vibration signals

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Title
Investigations of denoising source separation technique and its application to source separation and identification of mechanical vibration signals
Author
Cheng, WeiZhang, ZhousuoLee, SeungchulHe, Zhengjia
Keywords
Correlation analysis; denoising source separation; marker tracking; source identification; vibration monitoring and control
Issue Date
2014-10
Publisher
SAGE PUBLICATIONS LTD
Citation
JOURNAL OF VIBRATION AND CONTROL, v.20, no.14, pp.2100 - 2117
Abstract
A novel vibration source separation and identification method using the denoising source separation (DSS) technique is proposed for the mixed mechanical vibration signals from engines in ships. Denoising source separation enables us to extract the source signals from the mixed signals without prior knowledge of sources and their mixing mode, and thus the important source information extracted by DSS can be used to monitor or actively control engine noises. Different denoising functions such as energy, skew, kurtosis, and tangential functions in DSS are applied to both simulation studies and experimental data to evaluate their separating performances. The tangential function provides the best outperformance with both numerical study and engineering application. In addition, the effectiveness of the proposed DSS method is validated by correlation analysis and the frequency marker tracking method.
URI
https://scholarworks.unist.ac.kr/handle/201301/8389
DOI
10.1177/1077546313483789
ISSN
1077-5463
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DHE_Journal Papers
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