Non-destructive assessment of the axial stress state in iron and steel truss structures by dynamic measurements
- The inverse identification of the stress state in axially loaded slender members of iron and steel truss structures using measured dynamic data is discussed. A methodology is proposed based on the finite element model updating coupled with nature-inspired optimization techniques, in particular the particle swarm optimization. The numerical model of truss structures is calibrated using natural frequencies and mode shapes from vibration tests, as well as additional information of the axial forces in selected truss members based on the experimentally identified modal parameters. The results of the identification are the axial forces or corresponding stresses in truss structures and the joint rigidity in relation to pinned and rigid conditions.
Autor*innen: | Thi Mai Hoa Luong |
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Dokumenttyp: | Vortrag |
Veröffentlichungsform: | Präsentation |
Sprache: | Englisch |
Jahr der Erstveröffentlichung: | 2017 |
DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurbau |
Freie Schlagwörter: | Axial force; Dynamic test; Modal parameters; Model updating; Optimization technique; Truss structures |
Veranstaltung: | X International Conference on Structural Dynamics, EURODYN 2017 |
Veranstaltungsort: | Rome, Italy |
Beginndatum der Veranstaltung: | 10.09.2017 |
Enddatum der Veranstaltung: | 13.09.2017 |
DOI: | 10.1016/j.proeng.2017.09.447 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 15.09.2017 |
Referierte Publikation: | Nein |
Eingeladener Vortrag: | Nein |