Research Article
Numerical Simulation of Rock Plate Cutting with Three Sides Fixed and One Side Free
Table 6
Regression results to predict peak force.
| Variables | Cutting parameter | Regression equation | Correlation coefficient | F value | value |
| F-lz | lx of 400 mm | y = 2.20972 + 2.15256 exp(−0.03941x) | 0.86204 | 849 | 4.7e−7 | F-lz | lx of 500 mm | y = 2.22638 + 2.03257 exp(−0.03707x) | 0.81477 | 632 | 9.8e−7 | F-lx | ly of 160 mm | y = 2.32392 + 13.7128 exp(−0.03684x) | 0.98484 | 1645 | 6.0e−9 | F-lx | ly of 200 mm | y = 2.30385 + 11.7590 exp(−0.03352x) | 0.97576 | 1044 | 2.3e−8 | F-ly | lx and lz of 400 mm and 160 mm | y = −0.19038 + 0.64984 exp(0.08336x) | 0.9997 | 10662 | 6.9e−3 | F-ly | lx and lz of 500 mm and 200 mm | y = −1.07126 + 1.2321 exp(0.06483x) | 0.97680 | 1022 | 2.2e−2 | F-θ | lx and lz of 400 mm and 160 mm | y = 2.52079 + 0.16632x − 0.00615x2 | 0.669 | 7 | 4.8e−2 | F-θ | lx and lz of 500 mm and 200 mm | y = 2.29038 + 0.19510x − 0.00705x2 | 0.9153 | 33 | 3.2e−3 | F-lxp/lx | lx and lz of 400 mm and 160 mm | 2.24707 + 790.52 exp(−54.92394x) | 0.97858 | 2235 | 1.5e−2 | F-lxp/lx | lx and lz of 500 mm and 200 mm | 2.23067 + 1883.8 exp(−57.40125x) | 0.97629 | 763 | 2.5e−2 |
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