Prediction and Analysis of PDC Bit Wear in Conglomerate Layer with Machine Learning and Finite-Element Method

Table 3

Comparison of relative error between EP-GEP model predicted value and finite-element simulation result.

Serial number	(°)	(°C)	(m·s^−1)	(N)	EP-GEP (V/mm^3)	Relative error with the simulated value of finite-element method (%)
1	12	120	0.07	1580	1.722	−2.433
2	12	220	0.13	1870	2.601	−3.302
3	12	340	0.23	2060	4.343	1.592
4	12	430	0.27	2265	5.730	−2.873
5	12	550	0.29	2775	8.023	2.368
6	17	120	0.13	2060	2.599	2.757
7	17	220	0.23	2265	3.741	3.885
8	17	340	0.27	2775	5.156	−6.776
9	17	430	0.29	1580	5.855	2.073
10	17	550	0.07	1870	2.907	3.174
11	22	120	0.23	2775	4.155	3.243
12	22	220	0.27	1580	3.712	−2.722
13	22	340	0.29	1870	4.979	−6.980
14	22	430	0.07	2060	2.515	−7.010
15	22	550	0.13	2265	4.263	−0.585
16	27	120	0.27	1870	2.826	0.626
17	27	220	0.29	2060	3.650	−6.791
18	27	340	0.07	2265	2.226	−5.063
19	27	430	0.13	2775	3.390	−2.726
20	27	550	0.23	1580	5.346	6.506
21	33	120	0.29	2265	2.138	−5.392
22	33	220	0.07	2775	1.776	4.279
23	33	340	0.13	1580	1.810	−0.501
24	33	430	0.23	1870	3.220	−1.587
25	33	550	0.27	2060	4.639	−0.468