direkt zum Inhalt springen

direkt zum Hauptnavigationsmenü

Sie sind hier

TU Berlin

Inhalt des Dokuments

Gabriele Camerlengo (M.Sc.)

Lupe

gabriele.camerlengo@tu-berlin.de
+49 (0)30 314 27345 (Tel)
+49 (0)30 314 22638 (Fax)

Büro: VWS 113
Post: TU-Berlin, Sekr. MB1
Müller-Breslau-Straße 15
10623 Berlin

Forschung

Forschungsinteressen:

  • Kompressible Strömungen
  • Fluiddynamische Stabilität
  • Wärmeübergang bei erzwungener Konvektion
  • Turbulenzmodellierung
  • Numerische Mathematik

Projekte:

Wissenschaftliche Beiträge

Damage identification techniques via modal curvature analysis: Overview and comparison
Zitatschlüssel dessi2015damage
Autor Dessi, Daniele and Camerlengo, Gabriele
Seiten 181 - 205
Jahr 2015
ISSN 0888-3270
DOI https://doi.org/10.1016/j.ymssp.2014.05.031
Journal Mechanical Systems and Signal Processing
Jahrgang 52-53
Zusammenfassung This paper aims to compare several damage identification methods based on the analysis of modal curvature and related quantities (natural frequencies and modal strain energy) by evaluating their performances on the same test case, a damaged Euler–Bernoulli beam. Damage is modelled as a localized and uniform reduction of stiffness so that closed-form expressions of the mode-shape curvatures can be analytically computed and data accuracy, which affects final results, can be controlled. The selected techniques belong to two categories: one includes several methods that need reference data for detecting structural modifications due to damage, the second group, including the modified Laplacian operator and the fractal dimension, avoids the knowledge of the undamaged behavior for issuing a damage diagnosis. To explain better the different performances of the methods, the mathematical formulation has been revised in some cases so as to fit into a common framework where the underlying hypotheses are clearly stated. Because the various damage indexes are calculated on ‘exact’ data, a sensitivity analysis has been carried out with respect to the number of points where curvature information is available, to the position of damage between adjacent points, to the modes involved in the index computation. In this way, this analysis intends to point out comparatively the capability of locating and estimating damage of each method along with some critical issues already present with noiseless data.
Link zur Originalpublikation Download Bibtex Eintrag

Zusatzinformationen / Extras

Direktzugang

Schnellnavigation zur Seite über Nummerneingabe

Diese Seite verwendet Matomo für anonymisierte Webanalysen. Mehr Informationen und Opt-Out-Möglichkeiten unter Datenschutz.