Challenges of vibration prediction – realistic irregularities, the scattering of axle pulses, and the tunnel-surface reduction
- A prediction software has been developed by BAM. The following topics have still be solved. A realistic irregularity spectrum can be derived from axle-box measurements. It agrees wel with the spectrum used for the high-speed 2 project in the United Kingdom. In addition, the scattering of axle pulses should be included. This mid-frequency component can also be found in the HS2 procedure. Finally, the reduction in case of a tunnel line compared to a surface line should be included. Some measurement results of BAM, HS2 and other institutes show a certain mid-frequency reduction. This is due to the load distribution of the tunnel which yields softer axle pulses and the scattered axle impulses are reduced.
Autor*innen: | Lutz Auersch |
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Dokumenttyp: | Vortrag |
Veröffentlichungsform: | Präsentation |
Sprache: | Englisch |
Jahr der Erstveröffentlichung: | 2022 |
Organisationseinheit der BAM: | 7 Bauwerkssicherheit |
7 Bauwerkssicherheit / 7.2 Ingenieurbau | |
DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurbau |
Freie Schlagwörter: | Axle pulses; Ground vibration; Irregularities; Prediction; Railway trafiic; Surface line; Tunnel line |
Themenfelder/Aktivitätsfelder der BAM: | Infrastruktur |
Veranstaltung: | ISO/TC 108/SC 2/WG 8 Working group Ground-borne noise and vibration from rail systems |
Veranstaltungsort: | London, UK |
Beginndatum der Veranstaltung: | 21.11.2022 |
Enddatum der Veranstaltung: | 22.11.2022 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 02.01.2023 |
Referierte Publikation: | Nein |
Eingeladener Vortrag: | Nein |