Research Article
Effects of Side Load Chains of a Combine Harvester on Unbalanced Dynamic Vibrations of Its Threshing Drum
Table 6
Unbalanced amount before and after the test.
| | 30 degrees | 270 degrees | Amplitude (mm/s) | Phase (°) | Amplitude (mm/s) | Phase (°) |
| Before balancing | | | | | Hole 1 | 1.587 | 286 | 1.264 | 148 | Hole 2 | 1.487 | 283 | 0.943 | 150 | Prediction | | | | | Holes 1, 2 | 1.24 | 270 | 1.4 | 120 | Error | | | | | Hole 1 | 21.87% | 5.6% | 9.7% | 18.9% | Hole 2 | 16.6% | 4.6% | 32.64% | 20% | After balancing | | | | | Hole 1 | 0.731 | 329 | 0.59 | 157 | Hole 2 | 0.682 | 335 | 0.453 | 152 |
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