schweiz

Fahrbahnlabor

Name	Project title	Research object
TNO, Erwin Jansen, Michael Dittrich	QuieterRail	Virtual certification methodology for freight wagons
Bern University of Applied Sciences, Institute for Optimization and Data Analysis IODA, Niki Zumbrunnen	First modeling and evaluation of the data	For this exploratory analysis, the following questions were chosen as a starting point: How good is the data quality? How comparable are the measurement cross-sections with each other? What are the criteria or boundary conditions for future measurement campaigns? How do environmental influences generally affect the track superstructure and specifically the noise? What influence do the new rail pads and the under-sleeper pads of the concrete sleepers (B-91) have on the noise?
SBB Infrastructure, Laurence Conreaux	Allianz Fahrweg Normalspur – Vibrations – Studies to quantify the contributions of vehicles and infrastructure	Vibrations – Initial studies to quantify the contributions of vehicles and infrastructure - Allianz Fahrweg
Empa Materials Science and Technology, Dr. Bart Van Damme, Dr. Slimane Ouakka	Tool for the Prediction of Railway Noise (ToP-Noise)	Validation of noise and vibration models, statistical evaluation of pass-by measurements
infraMT GmbH, Marc Meier	Deflection measurement car / vibrations	Analysis of the correlations between track stiffness variations and vibration emissions
Gotthardteam, Ruedi Beutler	Detection of broken wheels of freight wagons	Safe European freight transport
Department of Technical Acoustics, TU Berlin, Luca Thomma	Evaluation of different acoustic parameters of rolling noise	Investigation and comparison of indirect wheel roughness determined according to DIN CEN TR 16891
Department of Technical Acoustics, TU Berlin, Prof. Dr.-Ing. Ennes Sarradj, Maximilian Mantel	Improved modeling of wheel–rail rolling noise for source-related noise reduction	Development of a computationally efficient, realistic rolling noise model with complete rail dynamics and simulation of multiple rolling wheels
ICR, Ingeniería para el Control del Ruido S.L.	QuieterRail	Pass-by noise transposition
Müller-BBM Rail Technologies GmbH, Prof. Stefan Lutzenberger, Dr. Nathan Isert	Wheel Irregularities and Their Effects on Noise Emissions, Vibration Emissions, and Track Dynamics	Systematic investigation of wheel flats, polygonal wheel defects, and acoustic wheel roughness at the Sempach track laboratory, including their effects on noise emissions, vibration emissions, and track dynamics; assessment of the potential of continuous wheel condition monitoring using WMS.
TU Graz – Institute of Railway Infrastructure Design, Prof. Ferdinand Pospischil, Mohamed Tara	Ballast Interaction	Analysis of ballast behaviour under the influence of track superstructure, rail roughness, train operation, weather conditions, speed, ballast bed thickness, and axle box acceleration in order to quantify ballast bed degradation and support the optimisation of track design.

Name

Project title

Research object

Link

TNO, Erwin Jansen, Michael Dittrich

QuieterRail

Virtual certification methodology for freight wagons

Bern University of Applied Sciences, Institute for Optimization and Data Analysis IODA, Niki Zumbrunnen

First modeling and evaluation of the data

For this exploratory analysis, the following questions were chosen as a starting point:

How good is the data quality?
How comparable are the measurement cross-sections with each other?
What are the criteria or boundary conditions for future measurement campaigns?
How do environmental influences generally affect the track superstructure and specifically the noise?
What influence do the new rail pads and the under-sleeper pads of the concrete sleepers (B-91) have on the noise?

SBB Infrastructure, Laurence Conreaux

Allianz Fahrweg Normalspur – Vibrations – Studies to quantify the contributions of vehicles and infrastructure

Vibrations – Initial studies to quantify the contributions of vehicles and infrastructure - Allianz Fahrweg

Empa Materials Science and Technology, Dr. Bart Van Damme, Dr. Slimane Ouakka

Tool for the Prediction of Railway Noise (ToP-Noise)

Validation of noise and vibration models, statistical evaluation of pass-by measurements

infraMT GmbH, Marc Meier

Deflection measurement car / vibrations

Analysis of the correlations between track stiffness variations and vibration emissions

Gotthardteam, Ruedi Beutler

Detection of broken wheels of freight wagons

Safe European freight transport

Department of Technical Acoustics, TU Berlin, Luca Thomma

Evaluation of different acoustic parameters of rolling noise

Investigation and comparison of indirect wheel roughness determined according to DIN CEN TR 16891

Department of Technical Acoustics, TU Berlin, Prof. Dr.-Ing. Ennes Sarradj, Maximilian Mantel

Improved modeling of wheel–rail rolling noise for source-related noise reduction

Development of a computationally efficient, realistic rolling noise model with complete rail dynamics and simulation of multiple rolling wheels

ICR, Ingeniería para el Control del Ruido S.L.

QuieterRail

Pass-by noise transposition

Müller-BBM Rail Technologies GmbH, Prof. Stefan Lutzenberger, Dr. Nathan Isert

Wheel Irregularities and Their Effects on Noise Emissions, Vibration Emissions, and Track Dynamics

Systematic investigation of wheel flats, polygonal wheel defects, and acoustic wheel roughness at the Sempach track laboratory, including their effects on noise emissions, vibration emissions, and track dynamics; assessment of the potential of continuous wheel condition monitoring using WMS.

TU Graz – Institute of Railway Infrastructure Design, Prof. Ferdinand Pospischil, Mohamed Tara

Ballast Interaction

Analysis of ballast behaviour under the influence of track superstructure, rail roughness, train operation, weather conditions, speed, ballast bed thickness, and axle box acceleration in order to quantify ballast bed degradation and support the optimisation of track design.

Research projects Fahrbahnlabor