The Absolute Deviation Rank Diagnostic Approach to Gear Tooth Composite Fault

Table 6

The level of absolute deviation of different fault types vibration frequency amplitude.

Number	Fault type	Different fault of absolute deviation rank in mesh frequency and multiple frequency
		1	Normal model	0	0	0	0	0
2	1/5 broken teeth	0	I	0	I	II
3	2/5 broken teeth	0	I	0	I	I
4	3/5 broken teeth	0	I	0	II	II
5	4/5 broken teeth	0	I	I	III	I
6	Total broken teeth	0	I	I	II	I
7	Point erosion 1	II	II	II	II	IV
8	Point erosion 2	I	IV	I	V	II
9	Point erosion 3	I	V	0	V	I
10	Point erosion 4	I	V	0	V	II
11	Compound fault 1	I	I	0	0	I
12	Compound fault 2	II	II	III	V	II
13	Compound fault 3	II	V	II	IV	0
14	Compound fault 4	II	0	III	IV	V