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This paper presents a sensor based diagnostic system for a cylindrical plunge grinding process which ensures a reliable process state and tool wear identification. A new signal processing technique, i.e. Hilbert-Huang transform (HHT) was evaluated for this purpose based on the vibration and acoustic emission signal measurements. Numerical and experimental studies have demonstrated that the process...
The paper presents the choice of diagnostic algorithms for condition monitoring of wind turbines. The device under monitoring is the power train, i.e. a main bearing, gears and a generator. The object also contains several roller bearings. The typical mechanical structure and characteristic frequencies are shown. The next chapter presents the sensor location and choice of sampling parameters. Additionally...
Artykuł przedstawia propozycję nadzoru diagnostycznego nad maszynami wirującymi małej i średniej mocy, zwanymi tu również maszynami pomocniczymi. Głównym obiektem zainteresowania są maszyny ułożyskowane tocznie o mocach od kilkudziesięciu kW do kilku MW. W pierwszej części przedstawiono uwarunkowania pod kątem diagnostyki, odnoszące się do tej grupy obiektów, a następnie określono zadania monitorowania...
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