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. 2023 Jun 8;8(2):243. doi: 10.3390/biomimetics8020243

Table 8.

Number of decomposition layers and update steps of different vibration signals.

Vibration State Measuring Point
Position and Direction
Number of Decomposition Layers (K) Update Steps (tau)
Stability test
of power
generation
condition
upper guide bearing,
X direction
13 0.0043
upper guide bearing,
Y direction
12 0.0312
water guide bearing,
X direction
13 0.0012
water guide bearing,
Y direction
12 0.0315
lower guide bearing,
X direction
12 0.0314
lower guide bearing,
Y direction
12 0.0068
Karman vortex street phenomenon
test
upper guide bearing,
X direction
14 0.0192
upper guide bearing,
Y direction
13 0.0321
water guide bearing,
X direction
12 0.0077
water guide bearing,
Y direction
12 0.1331
lower guide bearing,
X direction
15 0.0205
lower guide bearing,
Y direction
11 0.0474
Simulated fault shutdown test upper guide bearing,
X direction
12 0.0318
upper guide bearing,
Y direction
15 0.0483
water guide bearing,
X direction
10 0.3245
water guide bearing,
Y direction
12 0.0505
lower guide bearing,
X direction
14 0.0230
lower guide bearing,
Y direction
12 0.0053