|
| Modal order | Finite element modal analysis results | Test modal analysis results | Relative error (%) |
| Simulation mode frequency (Hz) | Modal mode description | Test mode frequency (Hz) | Modal mode description |
|
| 1 | 4.62 | Crank, connecting rod bending | 4.39 | Crank, connecting rod bending | 5.2 |
| 2 | 17.26 | Crank, connecting rod bending, slight deformation of the middle plate | 18.29 | Crank, connecting rod bending, slight deformation of the middle plate | 5.9 |
| 3 | 29.82 | The middle plate is severely deformed, and the right-side plate is slightly deformed | 29.41 | Crank, connecting rod bending, slight deformation of the middle plate | 1.4 |
| 4 | 63.85 | Crank, connecting rod bending, severe deformation of the middle plate, slight deformation of the right-side plate | 63.48 | Crank, connecting rod bending, severe deformation of the middle plate, slight deformation of the left- and right-side plates | 0.6 |
| 5 | 83.73 | Crank, connecting rod bending, severe deformation of the middle plate | 82.03 | Crank, connecting rod bending, intermediate plate, left- and right-side plates are severely deformed | 2 |
| 6 | 141.58 | Crank, connecting rod bending, slight deformation of the middle plate, severe deformation of the left- and right-side plates | 125.49 | Crank, connecting rod bending, severe deformation of the middle plate, slight deformation of the left- and right-side plates | 11.3 |
|
