Research Article
Vibration Characteristics of Ring-Stiffened Functionally Graded Circular Cylindrical Shells
Table 7
Variation of natural frequencies against circumferential wave number
, type II FG cylindrical shell with nickel ring stiffeners (
,
,
,
).
| | | | | | | | | 5 | 0 |
| 1 | 26.831 | 25.864 | 26.176 | 26.251 | 26.335 | 26.498 | 26.663 | 26.768 | 26.798 | 2 | 30.397 | 29.289 | 29.647 | 29.732 | 29.830 | 30.016 | 30.204 | 30.324 | 30.359 | 3 | 47.192 | 45.494 | 46.044 | 46.176 | 46.325 | 46.611 | 46.897 | 47.082 | 47.135 | 4 | 82.416 | 79.471 | 80.426 | 80.655 | 80.914 | 81.408 | 81.904 | 82.225 | 82.317 | 5 | 131.10 | 126.42 | 127.94 | 128.30 | 128.71 | 129.50 | 130.28 | 130.80 | 130.94 | 6 | 191.52 | 184.69 | 186.90 | 187.43 | 188.03 | 189.18 | 190.33 | 191.08 | 191.29 | 7 | 263.21 | 253.82 | 256.87 | 257.60 | 258.42 | 260.00 | 261.58 | 262.60 | 262.90 | 8 | 346.02 | 333.69 | 337.69 | 338.65 | 339.73 | 341.80 | 343.88 | 345.22 | 345.61 | 9 | 439.88 | 424.20 | 429.29 | 430.51 | 431.89 | 434.52 | 437.15 | 438.87 | 439.36 | 10 | 544.74 | 525.34 | 531.64 | 533.15 | 534.85 | 538.11 | 541.37 | 543.49 | 544.10 |
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