Planetary Gearbox Fault Diagnosis via Torsional Vibration Signal Analysis in Resonance Region

Table 1

Planetary gear set configuration.

Parameter	Sun	Planet	Ring	Planet carrier
Number of teeth	19	31	81	—
Module (mm)	3.2	3.2	3.2	—
Pressure angle (°)	20	20	20	—
Face width (m)	0.0381	0.0381	0.0381	—
Young’s modulus (Pa)	2.068 × 10^11	2.068 × 10^11	2.068 × 10^11	2.068 × 10^11
Poisson’s ratio	0.3	0.3	0.3	0.3
Mass (kg)	0.7000	1.8220	5.9820	4.5000
(kg)	0.5292	1.2732	7.5923	3.0000
Base circle radius (m)	0.0283	0.0462	0.1208	0.0745
Stiffness (N/m^2)	, ,

Note. Number of planets in parenthesis.