Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

Hipertrack / SPURT

 
: Kieninger, M.; May, U.; Lipp, K.

Sonsino, C.M. ; Fraunhofer-Institut für Betriebsfestigkeit und Systemzuverlässigkeit -LBF-, Darmstadt:
4th Fraunhofer LBF Meeting on Structural Durability in Railway Engineering 2006 : Darmstadt, 16.05. - 17.05.2006; Proceedings
Darmstadt: LBF, 2006 (LBF-Bericht 230)
pp.63-78
Meeting in Structural Durability in Railway Engineering <4, 2006, Darmstadt>
English
Conference Paper
Fraunhofer LBF ()
SPURT; hipertrack; MSS; CRS; high speed track; VIBRATION; Schadensmechanismus; Schienenfahrzeug

Abstract
In the HIPERTRACK (High Performance Rail Track) project research and development focused on an innovative high performance ballastless track. Special attention was given to the comprehensive investigation of track/vehicle dynamics, damage mechanisms of critical track components, new rail materials development as well as line techniques to assess track roughness evolution and vibro-acoustic behaviour during cycle lifetime. Therefore two solutions were addressed: Model I is based on a Mass Spring System (MSS) with precast concrete slabs, combined with an in between elastomer layer and the newly designed continuous rail support (CRS). Model II consists of the slab track (FFB) with endless coupled slab track system with precast concrete slabs, combined with the newly designed continuous rail support (CRS). Extensive measurements and evaluation of the behaviour of different rail track concepts with regards to the following aspects were accomplished:
- Noise reduction: - 2 dB: based on reference measurements due to the CRS.
- Reduced vibrations: model I+II from - 6 dB up to - 11 dB compared to ballast track.
- Reduced stresses and strains: between fasteners compared to ballast track due to CRS - for model I from 52% to 74%, for model II from 73% to 96%.
- Safety and reliability: one year computer-assisted long-term monitoring with remote technology.

: http://publica.fraunhofer.de/documents/N-49633.html