Analysis and Optimization of the Vibration and Noise of a Double Planetary Gear Power Coupling Mechanism

Table 5

Comparison of fitting values and simulation results.

Special points	Fitting values (dB)	Simulation results (dB)	The relative errors (%)
(6, 3, 6)^T	148.601	143.645	+3.45
(6, 4, 4)^T	150.031	143.214	+4.76
(7, 2, 4)^T	159.055	152.717	+4.15
(7, 4, 6)^T	146.405	150.762	−2.89
(8, 4, 6)^T	145.285	139.536	+4.12
(8, 4, 8)^T	143.619	136.196	+5.45