Table 7 Box-Behnken experiment design factors and levels.
From: Research on coal rock parameter calibration based on discrete element method
Encoding level | Variable factors | ||
|---|---|---|---|
A (Recovery coefficient between coal and rock particles) | B (Static friction coefficient between coal and rock particles) | C (Rolling friction coefficient between coal and rock particles) | |
−1 | 0.5 | 0.5 | 0.06 |
0 | 0.6 | 0.6 | 0.08 |
1 | 0.7 | 0.7 | 0.10 |
