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Full-Text Articles in Engineering
Lifetime Assessment Tools For Thermal Barrier Systems, Jean Louis Chaboche, Frederic Feyel, Martine Poulain, Noemie Rakotamalala, Arjen Roos, Jean Roch Vaunois, Arnaud Longuet, Pascale Kanaoute
Lifetime Assessment Tools For Thermal Barrier Systems, Jean Louis Chaboche, Frederic Feyel, Martine Poulain, Noemie Rakotamalala, Arjen Roos, Jean Roch Vaunois, Arnaud Longuet, Pascale Kanaoute
Thermal Barrier Coatings IV
No abstract provided.
Tbc Lifetime Under Thermal Gradient Cyclic Testing With Simultaneous Cmas Attack: Towards Prediction Of Advanced Tbc Performance, Daniel Emil Mack, Doris Sebold, Michael Müller, Robert Vaseen, Maria Ophelia Jarligo, Tanja Wobst
Tbc Lifetime Under Thermal Gradient Cyclic Testing With Simultaneous Cmas Attack: Towards Prediction Of Advanced Tbc Performance, Daniel Emil Mack, Doris Sebold, Michael Müller, Robert Vaseen, Maria Ophelia Jarligo, Tanja Wobst
Thermal Barrier Coatings IV
No abstract provided.
Degradation Trend Estimation And Prognosis Of Large Low Speed Slewing Bearing Lifetime, Prabuono Buyung Kosasih, Wahyu Caesarendra, Kiet Tieu, Achmad Widodo, Craig A. S Moodie
Degradation Trend Estimation And Prognosis Of Large Low Speed Slewing Bearing Lifetime, Prabuono Buyung Kosasih, Wahyu Caesarendra, Kiet Tieu, Achmad Widodo, Craig A. S Moodie
Faculty of Engineering and Information Sciences - Papers: Part A
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 preconditioning 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 nonstationary data is auto-regressive integrated moving average (ARIMA).