Two-Stage Degradation Assessment and Prediction Method for Aircraft Engine Based on Data Fusion

Table 4

Results of Mann Kendall test for all parameters in FD001.

Sensor	Trend	Hypothesis	value	Score
S1	No trend	False	1.0	0.0
S2	Increasing	True	≤0.001	9066.0
S3	Increasing	True	4.44e-16	7212.0
S4	Increasing	True	≤0.001	11796.0
S5	No trend	False	1.0	0.0
S6	No trend	False	1.0	0.0
S7	Decreasing	True	≤0.001	-10865.0
S8	Increasing	True	≤0.001	11211.0
S9	Decreasing	True	2.58e-09	-5303.0
S10	No trend	False	1.0	0.0
S11	Increasing	True	≤0.001	12172.0
S12	Decreasing	True	≤0.001	-11910.0
S13	Increasing	True	≤0.001	11859.0
S14	Decreasing	True	≤0.001	-9269.0
S15	Increasing	True	≤0.001	9409.0
S16	No trend	False	1.0	0.0
S17	Increasing	True	≤0.001	8653.0
S18	No trend	False	1.0	0.0
S19	No trend	False	1.0	0.0
S20	Decreasing	True	≤0.001	-9651.0
S21	Decreasing	True	≤0.001	-10487.0