Degradation Trend Estimation and Prognosis of Large Low Speed Slewing Bearing Lifetime

Bu Yung Kosasih; Wahyu Caesarendra; Kiet Tieu; Achmad Widodo; Craig A.S. Moodie; A. Kiet Tieu

doi:10.4028/www.scientific.net/AMM.493.343

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 493Degradation Trend Estimation and Prognosis of...

Degradation Trend Estimation and Prognosis of Large Low Speed Slewing Bearing Lifetime

Abstract:

In many applications, degradation of bearing conditions is usually monitored by changes in time-domain features. However, in low speed (< 10 rpm) slewing bearing, these changes are not easily detected because of the low energy and low frequency of the vibration. To overcome this problem, a combined low pass filter (LPF) and adaptive line enhancer (ALE) signal pre-conditioning method is used. Time-domain features such as root mean square (RMS), skewness and kurtosis are extracted from the output signal of the combined LPF and ALE method. The extracted features show accurate information about the incipient of fault as compared to extracted features from the original vibration signal. This information then triggers the prognostic algorithm to predict the remaining lifetime of the bearing. The algorithm used to determine the trend of the non-stationary data is auto-regressive integrated moving average (ARIMA).

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Periodical:

Applied Mechanics and Materials (Volume 493)

Pages:

343-348

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.493.343

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Online since:

January 2014

Authors:

Bu Yung Kosasih, Wahyu Caesarendra, Kiet Tieu, Achmad Widodo, Craig A.S. Moodie, A. Kiet Tieu

Keywords:

Adaptive Line Enhancer, Autoregressive Integrated Moving Average, Degradation Trend, Prognosis, Slewing Bearing

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