Research Article
Vibration Characteristics Analysis of Cylindrical Shell-Plate Coupled Structure Using an Improved Fourier Series Method
Table 3
The frequency of the coupled structures with different coupling-junction positions
/Hz.
| Mode | 1/4 | 1/3 | 1/2 | Current | Ansys | Errors | Current | Ansys | Errors | Current | Ansys | Errors |
| | 88.13 | 87.64 | 0.56 | 88.02 | 87.74 | 0.32 | 88.21 | 87.64 | 0.65 | | 178.87 | 177.84 | 0.58 | 178.66 | 178.04 | 0.35 | 179.04 | 177.85 | 0.67 | | 178.87 | 177.84 | 0.58 | 178.66 | 178.04 | 0.35 | 179.04 | 177.85 | 0.67 | | 219.62 | 219.48 | 0.06 | 250.24 | 250.21 | 0.01 | 293.83 | 291.74 | 0.72 | | 219.62 | 219.48 | 0.06 | 250.24 | 250.21 | 0.01 | 293.83 | 291.88 | 0.67 | | 241.26 | 241.34 | 0.03 | 255.51 | 255.74 | 0.09 | 295.67 | 295.76 | 0.03 | | 241.26 | 241.34 | 0.03 | 255.51 | 255.74 | 0.09 | 295.67 | 295.76 | 0.03 | | 288.70 | 288.05 | 0.23 | 293.26 | 292.05 | 0.41 | 329.87 | 329.98 | 0.03 | | 288.70 | 288.05 | 0.23 | 293.26 | 292.18 | 0.37 | 329.87 | 329.98 | 0.03 | | 293.58 | 291.74 | 0.63 | 323.94 | 324.50 | 0.17 | 337.94 | 335.63 | 0.69 | | 293.58 | 291.87 | 0.59 | 323.94 | 324.50 | 0.17 | 344.03 | 344.17 | 0.04 | | 317.21 | 317.44 | 0.07 | 337.27 | 335.97 | 0.39 | 344.03 | 344.17 | 0.04 | | 317.21 | 317.44 | 0.07 | 344.43 | 344.04 | 0.11 | 354.59 | 354.00 | 0.17 | | 337.62 | 335.59 | 0.61 | 344.43 | 344.04 | 0.11 | 354.59 | 354.00 | 0.17 | | 419.03 | 419.07 | 0.01 | 427.15 | 427.34 | 0.04 | 375.55 | 375.48 | 0.02 | | 419.03 | 419.07 | 0.01 | 427.15 | 427.34 | 0.04 | 375.55 | 375.48 | 0.02 | | 423.29 | 423.69 | 0.09 | 429.23 | 428.22 | 0.24 | 417.24 | 415.28 | 0.47 | | 423.29 | 423.69 | 0.09 | 429.23 | 428.22 | 0.24 | 417.24 | 415.28 | 0.47 | | 429.66 | 426.91 | 0.64 | 449.12 | 449.47 | 0.08 | 429.95 | 426.86 | 0.72 | | 429.66 | 426.91 | 0.64 | 449.12 | 449.47 | 0.08 | 429.95 | 426.86 | 0.72 |
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