VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Condition classification of heating systems valves based on acoustic features and machine learning
    Potočnik, Primož, 1969- ...
    The quality and condition of valves installed in district heating systems can be reflected by the soundsemitted. In this paper, a framework for a systematic approach towards the classification of ... valve soundsis proposed, based on acoustic features and machine learning models. The methods include the extractionof spectral and psychoacoustic features, alongside the application of a wrapper-based feature selectionmethod which, when combined with machine learning models, simultaneously selects the most informa-tive features and builds optimal classification models. The maximal balanced classification rate (BCR) wasused as the optimisation criterion in this study. Results demonstrate that the specific valve conditions canbe correctly classified with a high BCR as follows: cavitation BCR = 1, whistling BCR = 0.978, and rattlingBCR = 1. The proposed framework for a wrapper-based selection of informative features and correspond-ing machine learning models confirms the usefulness of psychoacoustic features and machine learningmodels for the classification of valve conditions. The proposed framework is, however, general and canbe applied to various acoustic-based industrial condition monitoring challenges.
    Vir: Applied acoustics. - ISSN 0003-682X (Vol. 174, Mar. 2021, str. 1-9)
    Vrsta gradiva - članek, sestavni del
    Leto - 2021
    Jezik - angleški
    COBISS.SI-ID - 35370243

    Povezava(-e):

    https://www.sciencedirect.com/science/article/pii/S0003682X20308409?via%3Dihub
    Repozitorij Univerze v Ljubljani – RUL
    DOI

vir: Applied acoustics. - ISSN 0003-682X (Vol. 174, Mar. 2021, str. 1-9)
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