A numerical approach of the train-track interaction along discontinuous tracks
- This paper presents a three dimensional numerical model which is can be used to investigate the effects on the track and in its vicinity due to a train passage. The numerical model for train track interaction is based on a time domain dynamic finite element model. Due to the unbounded nature of the soil the truncated boundary of the finite element domain is modelled with the scaled boundary finite element method, which is a semi-analytical approach. The application for a heterogeneous track along the track line is exemplified by a track with a bridge structure, where close attention is paid to the wheel-rail contact force. The results indicate that the wheel-rail contact force is not symmetrical around the bridge structure and an optimisation in terms of a backfilling area and under-sleeper-pads can improve such a transition.
Autor*innen: | Jeffrey Bronsert |
---|---|
Koautor*innen: | Matthias Baeßler |
Dokumenttyp: | Vortrag |
Veröffentlichungsform: | Präsentation |
Sprache: | Englisch |
Jahr der Erstveröffentlichung: | 2016 |
DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurbau |
Freie Schlagwörter: | Bridge transition zone; Coupled FE-SBFE model; Finite element method; Scaled boundary finite element method; Train-track interaction |
Veranstaltung: | Railways 2016 |
Veranstaltungsort: | Cagliari, Sardinia, Italy |
Beginndatum der Veranstaltung: | 5.04.2016 |
Enddatum der Veranstaltung: | 8.04.2016 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 19.05.2016 |
Referierte Publikation: | Nein |
Eingeladener Vortrag: | Nein |