Phase Space Similarity as a Signature for Rolling Bearing Fault Diagnosis and Remaining Useful Life Estimation

Table 2

Results of rolling bearing fault pattern recognition.

Fault pattern	Original signal		RMS		Phase space
	Number of samples; (test/true)	Accuracy	Number of samples; (test/true)	Accuracy	Number of samples (test/true)	Accuracy
1	30/30	100%	30/1	3.3%	30/30	100%
2	30/30	100%	30/10	33.3%	30/30	100%
3	30/28	93.3%	30/13	43.3%	30/30	100%
4	30/29	96.7%	30/14	46.7%	30/30	100%
5	30/17	56.7%	30/25	83.3%	30/20	66.7%
6	30/16	53.3%	30/30	100%	30/18	60%
7	30/18	60%	30/26	86.7%	30/23	76.7%
8	30/26	86.7%	30/19	63.3%	30/30	100%
9	30/27	90%	30/19	63.3%	30/30	100%
10	30/30	100%	30/6	20%	30/30	100%
Total	300/251	83.7%	300/162	54%	300/271	90.3%