Research Article
Simulation Analysis of Cylindrical Shell Cavity Noise with Melamine Foam Lining
Table 2
Comparison between theoretical and simulation values of normal frequency.
| | Mode | Without MF lining (Hz) | 40 mm MF lining (Hz) | | Theory | Simulation | Theory | Simulation |
| | (1, 0, 0) | 153.8 | 153.8 | 137.9 | 138 | | (0, 0, 1) | 193.5 | 195.0 | 180.2 | 180.1 | | (1, 0, 1) | 248.4 | 248.1 | 223.3 | 224.0 | | (2, 0, 0) | 307.6 | 307.6 | 274.3 | 275.8 | | (0, 0, 2) | 321.0 | 323.1 | 285.0 | 287.7 | | (1, 0, 2) | 355.9 | 357.8 | 316.4 | 320.9 | | (2, 0, 1) | 363.4 | 365.7 | 319.3 | 323.7 |
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