Degradation prediction and reliability evaluation based on hilbert-huang transform and time series-grey analysis

作者：Wang Li; Yu Chongchong; Wang Xiaoyi; Xu Jiping

来源：International Journal of Applied Mathematics and Statistics, 2013, 51(23): 347-356.

• Degradation predictions
• Degradation process
• Degradation test
• Grey theory
• Hilbert Huang transforms
• Performance degradation datum
• Reliability Evaluation
• Time series modeling

This paper presents a method of degradation prediction and reliability evaluation based on Hilbert-Huang Transform (HHT) and time series modeling procedure and grey theory by using degradation test data. The degradation test data are preprocessed by Hilbert-Huang Transform to obtain performance degradation data, which is treated as time series and stochastic process are utilized to describe the degradation process for degradation prediction and reliability evaluation. A degradation test is processed for rotary machine until they failed and the degradation test vibration data are collected for reliability evaluation. A comparison between the predicted reliability evaluation and the real reliability evaluation is processed and the results show that the reliability evaluation using Hilbert-Huang Transform and time series-grey analysis is effective.

• 出版日期2013