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Aliasing Signal Separation of Superimposed Abrasive Debris Based on Degenerate Unmixing Estimation Technique.
Li, Tongyang; Wang, Shaoping; Zio, Enrico; Shi, Jian; Hong, Wei.
Afiliação
  • Li T; School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China. soredsun@buaa.edu.cn.
  • Wang S; Energy Department, Politecnico di Milano, Via La Masa 34, 20156 Milano, Italy. soredsun@buaa.edu.cn.
  • Zio E; School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China. shaopingwang@vip.sina.com.
  • Shi J; Energy Department, Politecnico di Milano, Via La Masa 34, 20156 Milano, Italy. enrico.zio@polimi.it.
  • Hong W; Chair on System Science and the Energy Challenge, Fondation Electricite' de France (EDF), CentraleSupélec, Université Paris-Saclay, Grande Voie des Vignes, 92290 Chatenay-Malabry, France. enrico.zio@polimi.it.
Sensors (Basel) ; 18(3)2018 Mar 15.
Article em En | MEDLINE | ID: mdl-29543733
Leakage is the most important failure mode in aircraft hydraulic systems caused by wear and tear between friction pairs of components. The accurate detection of abrasive debris can reveal the wear condition and predict a system's lifespan. The radial magnetic field (RMF)-based debris detection method provides an online solution for monitoring the wear condition intuitively, which potentially enables a more accurate diagnosis and prognosis on the aviation hydraulic system's ongoing failures. To address the serious mixing of pipe abrasive debris, this paper focuses on the superimposed abrasive debris separation of an RMF abrasive sensor based on the degenerate unmixing estimation technique. Through accurately separating and calculating the morphology and amount of the abrasive debris, the RMF-based abrasive sensor can provide the system with wear trend and sizes estimation of the wear particles. A well-designed experiment was conducted and the result shows that the proposed method can effectively separate the mixed debris and give an accurate count of the debris based on RMF abrasive sensor detection.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2018 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2018 Tipo de documento: Article