Solid lubricated bearings performance degradation assessment: A fuzzy self-organizing map method

• Autorzy: Zhang Ch. , Wang S.

Warianty tytułu

PL

Ocena obniżenia charakterystyk łożysk ze smarem stałym: metoda rozmytych samoorganizujących się map

• Języki publikacji: EN

Abstrakty

EN

Solid lubricated bearings are common components in space mechanisms, and their reliability and performance degradation assessment are very crucial. In this study, a fuzzy self-organizing map method is used to perform performance degradation assessment. Feature vectors are constructed by indices of vibration as well as friction torque signal. Self-organizing map is then used to perform performance degradation assessment and the subjection of each feature vector to normal cluster on output layer is used as degradation indicator. Accelerated life test results show that this method can make effective performance degradation assessment and describe degradation degree in the whole life time.

PL

Łożyska ze smarem stałym to powszechnie stosowane elementy urządzeń, a ich niezawodność i ocena degradacji charakterystyk są bardzo istotne. W przedstawionej pracy wykorzystano metodę rozmytych samoorganizujących się map do oceny obniżenia charakterystyk. Wektory cech skonstruowano za pomocą wskaźników wibracji, jak również sygnału momentu tarcia. Następnie dokonano oceny obniżenia charakterystyk z wykorzystaniem samoorganizującej się mapy, a za wskaźnik degradacji przyjęto przynależność każdego wektora cech do normalnej grupy w warstwie wyjściowej. Wyniki badań przyspieszonych pokazują, że przy użyciu omawianej metody można dokonywać skutecznej oceny obniżenia charakterystyk a także opisywać stopień degradacji w całym okresie eksploatacji.

Słowa kluczowe

EN

solid lubricated bearings; performance degradation; fuzzy self-organizing map

PL

łożyska ze smarem stałym; obniżenie charakterystyk; rozmyta mapa samoorganizująca się

• Wydawca: Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne
• Czasopismo: Eksploatacja i Niezawodność
• Rocznik: 2013
• Tom: Vol. 15, no. 4
• Strony: 397--402
• Opis fizyczny: Bibliogr, 33 poz., rys., tab.

Twórcy

autor

Zhang Ch.

• School of Automation Science and Electrical Engineering Beihang University No. 37 Xueyuan Road, Haidian District, Beijing, China, 100191

autor

Wang S.

• School of Automation Science and Electrical Engineering Beihang University No. 37 Xueyuan Road, Haidian District, Beijing, China, 100191

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