Table 3.
The comparison of the resonant frequencies for the second pair of sensors, the ABAQUS, and the theory.
| Mode | Theory (Hz) | FEM (Error %) | PVDF (Error %) | Strain Gauge (Error %) | |
|---|---|---|---|---|---|
| 1 | 58.84 | 59.2 (0.63) | 56.52 (−2.5) | 56.52 (−2.5) | |
| 2 | 368.8 | 3,70.8 (0.55) | 361.1 (−2.0) | 361.1 (−2.0) | |
| 3 | 1,032.8 | 1,038.2 (0.50) | 1030 (−0.2) | ||
| 4 | 2,023.8 | 2,033.5 (0.48) | 2,010.3 (−0.6) | 2,009 (−0.7) | |
| 5 | 3,345.2 | 3,361.1 (0.47) | 3,336.3 (−0.2) | ||
| 6 | Torsional | 4,121.3 | 4,017(−2.5) | 4,045.5 (−1.8) | |
| 7 | 4,997.4 | 5,019.3 (0.44) | 4,949.3 (−0.9) | 4,949.6 (−0.9) | |
| 8 | Torsional | 6,868.8 | 6,714 (−2.2) | ||
| 9 | 6,979.6 | 7,007.2 (0.39) | 6,942 (−0.5) | ||
| 10 | 9,292.3 | 9,321.5 (0.31) | 9,205.3 (−0.9) | 9,206.6 (−0.9) | |
| 11 | Torsional | 9,616.3 | 9,533 (−0.8) |