Research on Sensitive Measuring Points for Vibration Fault of NC Turret Based on Energy Flow and Transfer Path

Table 2

Calculation results of the energy-keeping factor.

Coupling point		1	2	3	4	5	6	7	8
The energy flow of the coupling point		6.48E − 12	5.08E − 12	5.97E − 12	5.93E − 12	7.00E − 12	7.78E − 12	8.83E − 12	8.18E − 12
The energy flow of the target point of the NC turret shell	1	3.53E − 14	1.45E − 13	2.16E − 13	1.01E − 13	1.45E − 14	5.82E − 15	1.26E − 17	2.14E − 16
	2	3.31E − 15	2.09E − 14	1.05E − 13	2.18E − 13	5.12E − 14	7.45E − 16	3.95E − 18	4.88E − 17
	3	4.55E − 14	6.28E − 14	6.41E − 14	3.19E − 15	4.61E − 15	5.52E − 16	2.69E − 17	7.59E − 16
	4	6.08E − 16	2.60E − 15	1.53E − 14	5.24E − 14	1.47E − 13	4.91E − 14	8.27E − 17	6.19E − 17
	5	9.02E − 16	5.73E − 15	2.99E − 14	1.18E − 13	1.28E − 13	3.92E − 14	6.52E − 17	1.42E − 16
	6	2.13E − 15	1.41E − 14	6.43E − 14	1.60E − 13	1.27E − 13	1.45E − 14	3.85E − 17	1.42E − 16
	7	1.24E − 13	7.25E − 14	2.19E − 14	2.42E − 15	4.37E − 16	1.21E − 16	2.33E − 16	3.02E − 15
	8	5.56E − 14	6.94E − 14	2.21E − 14	5.29E − 15	1.15E − 15	4.05E − 17	1.56E − 16	7.07E − 16
	9	3.43E − 14	3.27E − 14	1.52E − 14	6.50E − 15	1.36E − 15	6.81E − 17	9.68E − 17	2.33E − 15
The energy-keeping factor ξij	1	0.5450%	2.8473%	3.6251%	1.7007%	0.2071%	0.0748%	0.0001%	0.0026%
	2	0.0511%	0.4114%	1.7524%	3.6693%	0.7322%	0.0096%	0.0000%	0.0006%
	3	0.7020%	1.2349%	1.0741%	0.0538%	0.0659%	0.0071%	0.0003%	0.0093%
	4	0.0094%	0.0511%	0.2556%	0.8834%	2.0978%	0.6321%	0.0009%	0.0008%
	5	0.0139%	0.1128%	0.5012%	1.9861%	1.8230%	0.5037%	0.0007%	0.0017%
	6	0.0329%	0.2766%	1.0776%	2.7026%	1.8106%	0.1859%	0.0004%	0.0017%
	7	1.9118%	1.4254%	0.3675%	0.0409%	0.0062%	0.0016%	0.0026%	0.0369%
	8	0.8583%	1.3645%	0.3700%	0.0892%	0.0165%	0.0005%	0.0018%	0.0086%
	9	0.5298%	0.6442%	0.2552%	0.1096%	0.0194%	0.0009%	0.0011%	0.0285%