Fault Feature Analysis of a Cracked Gear Coupled Rotor System

Table 9

Crack case data under different crack propagation directions.

Crack case	Crack propagation direction 𝜐 (°)	Crack case	Crack propagation direction 𝜐 (°)	Crack case	Crack propagation direction 𝜐 (°)	Condition
1 (B)^#	0^#	8	35	15 (E)^#	70^#	Ω1=1000 rev/min; 𝜓=35^∘; 𝐿𝑐=𝐿=20 mm; 𝑞𝑒=𝑞0=3 mm
2	5	9	40	16	75
3	10	10	45	17 (F)^#	80^#
4	15	11	50	18	85
5	20	12	55	19 (G)^#	90^#
6	25	13 (D)^#	60^#
7 (C)^#	30^#	14	65