| Titre : | FDE index for goodness-of-fit between measured and calculated response signals |
| Auteurs : | Dragovich, Jeff J., Auteur ; Lepage, Andres, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Earthquake engineering structural dynamics (Vol. 38 N° 15, Décembre 2009) |
| Article en page(s) : | pp.1751-1758 |
| Note générale : | Génie Civil |
| Langues : | Anglais |
| Index. décimale : | 624.1 (Infrastructures.Ouvrages en terre. Fondations. Tunnels) |
| Tags : | Model validation ; Comparison metrics ; FFT |
| Résumé : | A method is presented for determining the goodness-of-fit between measured and calculated structural response signals. The method is termed as the frequency domain error (FDE) index, which is a value between 0 and 1 where zero indicates a perfect correlation. The FDE is calculated from the Fourier spectra of the measured and calculated waveforms, using a relatively simple calculation procedure, readily implemented using standard fast Fourier transform (FFT) libraries. The FDE is demonstrated herein using three different types of problems: simple harmonic waves, a large number of earthquake response simulations, and a set of limited simulations. Along with the FDE concept, effective methods for displaying the results are presented. |
| ISSN : | 0098-8847 |
| En ligne : | www.interscience.wiley.com/journal/eqe |
