Table 7 Comparison of drum performance before and after optimization.
From: Research on the optimization of drum structure based on virtual prototyping technology
Item | Value | Rounded | Item | Original drum | Optimized drum | Optimization rate (%) |
|---|---|---|---|---|---|---|
Helix angle | 18.25 | 18 | Average cutting resistance/kN | 107.4116 | 93.7440 | 12.72 |
Installation angle | 45.28 | 45 | Load fluctuation coefficient | 0.6868 | 0.6194 | 9.81 |
Cutting distance | 70.82 | 71 | Cutting specific energy consumption/kW h m−3 | 0.9253 | 0.8989 | 2.85 |
– | – | Coal loading rate % | 61 | 66.85 | 9.59 |
