Research Article
A Comparison on Numerical Simulation Models for Vibrational Performances of the Wood Truss Joist Floor System
Table 5
Fundamental frequencies obtained from the experiment and the models.
| | Method | Type | F1 (Hz) | ξ1 (%) | F2 (Hz) | ξ2 (%) | F3 (Hz) | ξ3 (%) |
| | Measurement | Experimental data | 15 | 7.0 | 17.8 | 7.3 | 21.0 | 5.5 | | Numerical models | Method I | Value | 20.12 | — | 22.52 | — | 24.08 | — | | Difference | 34.3% | 26.5% | 14.7% | | Method II | Value | 17.73 | — | 18.96 | — | 19.56 | — | | Difference | 18.2% | 6.5% | 6.8% | | Method III | Value | 16.90 | — | 17.7 | — | 18/20.85 (F6) | — | | Difference | 12.7% | 0.56% | 14%/0.7% |
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