Research Article
Vibroacoustical Analysis of Multiple-Layered Structures with Viscoelastic Damping Cores
Table 3
Comparison of results for simply supported boundary condition.
| Number of mode
| Damping model | Hao [19] | FEM model of this paper | ISD110-45°C Arrhenius | ISD110-45°C 6-term Biot |
| 1st | Frequency | 4.7443 Hz | 4.5834 Hz | Loss factor | 0.6248 | 0.7916 | 2nd | Frequency | 13.902 Hz | 13.9489 Hz | Loss factor | 0.6008 | 0.6824 | 3rd | Frequency | 27.661 Hz | 27.7721 Hz | Loss factor | 0.5317 | 0.5632 | 4th | Frequency | 46.1548 Hz | 47.1053 Hz | Loss factor | 0.4715 | 0.4681 | 5th | Frequency | 69.3118 Hz | 68.82259 Hz | Loss factor | 0.421 | 0.4226 |
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