Research Article
Design and Optimization of Working Parts of Vertical Spiral Ditching Machine Based on Milling Force and BP Neural Network Model
Table 1
Free modal analysis results of working parts of spiral ditching machine.
| | Order | Natural frequency/Hz | Describe vibration mode |
| | 1 | 0 | Rigid body translation | | 2 | 0 | Rigid body translation | | 3 | 0 | Rigid body translation | | 4 | 213.68 | Spindle bending vibration | | 5 | | Rigid body rotation | | 6 | 566.1 | Spindle bending vibration | | 7 | 812.9 | Axial vibration of spindle and torsional vibration of spindle | | 8 | 1028.6 | Axial vibration of spiral blade |
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