Tool Wear Detection Based on Duffing-Holmes Oscillator

Table 2

Lyapunov exponents in Duffing-Holmes.

No.	𝑟	Max LE	Min LE	No.	𝑟	Max LE	Min LE
1	0.52	0.185	−0.685	16	0.74	−0.18527	−0.31473
2	0.54	0.11914	−0.61914	17	0.75	−0.22179	−0.27821
3	0.56	0.12314	−0.62314	18	0.76	−0.23059	−0.26941
4	0.58	0.15765	−0.65765	19	0.77	−0.23088	−0.26912
5	0.6	0.00782	−0.50782	20	0.78	−0.22217	−0.27783
6	0.62	0.13867	−0.63867	21	0.8	−0.24112	−0.25888
7	0.64	0.15349	−0.65349	22	0.82	−0.23407	−0.26893
8	0.66	0.17321	−0.67321	23	0.84	−0.23449	−0.26551
9	0.68	0.16921	−0.66921	24	0.86	−0.24647	−0.25353
10	0.7	0.17056	−0.67056	25	0.88	−0.24773	−0.25227
11	0.71	0.17226	−0.67226	26	0.9	−0.24394	−0.25606
12	0.72	0.19317	−0.69317	27	0.92	−0.22882	−0.27118
13	0.73	0.185	−0.685	28	0.94	−0.24693	−0.25307
14	0.733	0.164	−0.664	29	0.96	−0.24271	−0.25729
15	0.734	−0.20655	−0.29345	30	0.98	−0.23848	−0.26152