Research Article
Effects of Side Load Chains of a Combine Harvester on Unbalanced Dynamic Vibrations of Its Threshing Drum
Table 2
Constrained mode of the threshing drum.
| Modal order | Frequency (Hz) | Critical speed (rpm) |
| 1 | 143.76 | 8625.60 | 2 | 143.77 | 8626.20 | 3 | 197.05 | 11823 | 4 | 293.1 | 17586 | 5 | 298.33 | 17899.80 | 6 | 198.41 | 11904.60 |
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