Research Article
Comparison of the Time Domain Windows Specified in the ISO 18431 Standards Used to Estimate Modal Parameters in Steel Plates
Table 1
Natural frequencies [Hz] estimated by using three different windows.
| Vibrational mode | Numerical model | Hanning | Flat TOP | Rectangular |
| First bending | 636 | 640.9 | 634.8 | 636.3 | First torsion | 671 | 671.4 | 671.4 | 668.3 | Second torsion | 1472 | 1465 | 1469 | 1468 | Second bending | 1640 | 1697 | 1691 | 1694 |
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