Jiang ZHANG, Jun-jie CUI, Chang-song ZHENG, Yong LIU, Ya-jun LIU, Jian SHEN. Stochastic Process Prediction of Clutch Remaining Life Based on Oil Spectral Data[J]. Spectroscopy and Spectral Analysis, 2022, 42(8): 2631

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- Spectroscopy and Spectral Analysis
- Vol. 42, Issue 8, 2631 (2022)

Fig. 1. Structural principle diagram of integrated transmission device and wet clutch

Fig. 2. Physical drawing of wet clutch comprehensive test bench

Fig. 3. Experimental flow chart

Fig. 4. Elemental spectrum

Fig. 5. Accumulation diagram of Cu and Pb elements

Fig. 6. Degradation increment diagram
(a): Cu increment diagram; (b): Pb increment diagram
(a): Cu increment diagram; (b): Pb increment diagram

Fig. 7. Histogram of normal distribution of incremental statistics
(a): Cu increment statistics chart; (b): Pb increment statistics chart
(a): Cu increment statistics chart; (b): Pb increment statistics chart

Fig. 8. Prediction diagram of univariate wiener process

Fig. 9. Prediction diagram of binary wiener process

Fig. 10. Residual life prediction deviation
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Table 1. Common copula functions
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Table 2. AIC values of common copula functions
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Table 3. Estimated value of model coefficient
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Table 4. Comparison between prediction results and test results

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