Jens Nielsen

2021

On the influence of crossing angle on long-term rail damage evolution in railway crossings

Calibration and validation of the dynamic response of two slab track models using data from a full-scale test rig

2021

Calibration and validation of the dynamic response of two slab track models using data from a full-scale test rig

On tailored signal processing tools for operational condition monitoring of railway switches and crossings

Calibration and validation of the dynamic response of two slab track models using data from a full-scale test rig

Railway wheel tread damage and axle bending stress – Instrumented wheelset measurements and numerical simulations

Wheel–rail impact loads and axle bending stress simulated for generic distributions and shapes of discrete wheel tread damage

Simulation of vertical dynamic vehicle–track interaction – Comparison of two- and three-dimensional models

Degradation of railway track geometry – Correlation between track stiffness gradient and differential settlement

Prediction of Vertical Dynamic Vehicle–Track Interaction and Sleeper–Ballast Contact Pressure in a Railway Crossing

Simulation of vertical dynamic vehicle–track interaction using a three-dimensional slab track model

Prediction of Long-Term Damage in Railway Crossings Accounting for Variability in Dynamic Traffic Loads

Advances in Dynamics of Vehicles on Roads and Tracks - Proceedings of the 26th Symposium of the International Association of Vehicle System Dynamics, IAVSD 2019, August 12–16, 2019, Gothenburg, Sweden

Digitalisation of condition monitoring data as input for fatigue evaluation of wheelsets

Wheel-rail impact loads and noise generated at railway crossings - Influence of vehicle speed and crossing dip angle

2019

Metamodelling of wheel–rail normal contact in railway crossings with elasto-plastic material behaviour

Multi-objective optimisation of transition zones between slab track and ballasted track using a genetic algorithm

2019

Preface

Prediction of plastic deformation and wear in railway crossings – Comparing the performance of two rail steel grades

Simulation of wheel–rail impact load and sleeper–ballast contact pressure in railway crossings using a Green's function approach

Simulation of damage in railway crossings - a comparison of rail steel grades R350HT and rolled Mn13

An iterative methodology for the prediction of dynamic vehicle–track interaction and long-term periodic rail wear

2018

Simulation of vertical dynamic vehicle–track interaction using a two-dimensional slab track model

Railway track geometry degradation due to differential settlement of ballast/subgrade – Numerical prediction by an iterative procedure

Reproducibility of railway noise measurements—influence of weather and test site conditions

Multi-objective design optimisation of transition zones between different railway track forms

Contributions of longitudinal track unevenness and track stiffness variation to railway induced vibration

Metamodel for elasto-plastic wheel–rail contact with application to damage in a railway crossing

Hybrid model for prediction of impact noise generated at railway crossings

Dynamic interaction between vehicle and slab track – Influence of track design parameters

Simulation of vertical dynamic vehicle-track interaction in a railway crossing using Green's functions

Vertical dynamic vehicle-track interaction in a railway crossing predicted by moving Green's functions

The influence of corrugation on frictional stress at the rail-wheel interface

Hybrid model for prediction of impact noise generated at railway crossings

Switch panel design based on simulation of accumulated rail damage in a railway turnout

Three-dimensional modelling of differential railway track settlement using a cycle domain constitutive model

Numerical prediction of rail corrugation growth on curves

Rail corrugation growth on curves - measurements, modelling and mitigation

Ground-Borne Vibration Mitigation Measures for Turnouts: State-of-the-Art and Field Tests

Switch panel design based on simulation of accumulated rail damage in a railway turnout

Reducing train-induced ground-borne vibration by vehicle design and maintenance

Dynamic vehicle-track interaction in switches and crossings and the influence of rail pad stiffness - field measurements and validation of a simulation model

A hybrid model for prediction of ground-borne vibration due to discrete wheel/rail irregularities

Allowable wheel loads, crack sizes and inspection intervals to prevent rail breaks

Simulation of material degradation in track switches

Reduction of Train Induced Ground Vibration by Vehicle Design

Simulation of track settlement in railway turnouts

2014

The influence of contact modelling on simulated wheel/rail interaction due to wheel flats

2014

Simulation of rail roughness growth on small radius curves using a non-Hertzian and non-steady wheel–rail contact model

Rail corrugation growth on curves - measurements, modelling and mitigation

Inverse identification of wheel-rail contact forces based on observation of wheel disc strains: an evaluation of three numerical algorithms

Simulation of rail roughness growth on small radius curves using a non-Hertzian and non-steady wheel-rail contact model

Design Optimization of Switch Rails in Railway Turnouts

Wheel-rail interaction and damage in switches and crossings

Dynamic train–track interaction at high vehicle speeds considering the inertial effects due to wheel rotation

Track gauge optimisation of railway switches using a genetic algorithm

High-Frequency Vertical Wheel-Rail Contact Forces at High Vehicle Speeds-The Influence of Wheel Rotation

The influence of contact modelling on simulated wheel/rail interaction due to wheel flats

Acceptance criterion for rail roughness level spectrum based on assessment of rolling contact fatigue and rolling noise

Simulation of dynamic vehicle-track interaction on small radius curves

Kinematic Gauge Optimization of Switches Using Genetic Algorithms

In situ performance of a ballasted railway track with under sleeper pads

Dynamic train-track interaction at high vehicle speeds-Modelling of wheelset dynamics and wheel rotation

Simulering av dynamisk tåg-spår interaktion i snäva kurvor

Simulation of wheel-rail contact and damage in switches & crossings

Track model validation for simulation of train–turnout dynamics

Track condition analyser: identification of rail rolling surface defects, likely to generate fatigue damage in wheels, using instrumented wheelset measurements

Track condition analyser – assessment of need for track maintenance based on instrumented wheelset measurements

DAMAGE IN SWITCHES AND CROSSINGS CONSIDERING STOCHASTIC SPREAD IN RAILWAY TRAFFIC PARAMETERS

INNOTRACK Deliverable 3.1.6 -- Recommendation of, and scientific basis for, optimisation of switches & crossings - part 2. Paris:UIC

Geometry and stiffness optimization for switches and crossings, and simulation of material degradation

High-frequency vertical wheel–rail contact forces at high vehicle speeds – the influence of wheel rotation

Acceptance criterion for rail roughness level spectrum based on assessment of rolling contact fatigue and rolling noise

Simulation of wheel-rail contact and damage in switches & crossings

Simulation of wheel–rail contact and subsequent material degradation in switches & crossings

Monitoring of rail corrugation growth due to irregular wear on a railway metro curve

INNOTRACK Deliverable 3.1.4 -- Summary of results from simulations and optimisation of switches. Paris: UIC

Out-of-round railway wheels

INNOTRACK Deliverable 4.2.5 -- Improved model for the influence of vehicle conditions (wheel flats, speed, axle load) on the loading and subsequent deterioration of rails

Analysis of static fractures of rails due to wheel flats

Monitoring of rail corrugation growth due to irregular wear on a railway metro curve

Dynamic train–turnout interaction in an extended frequency range using a detailed model of track dynamics

INNOTRACK Deliverable 3.1.5 -- Recommendation of, and scientific basis for, optimisation of switches & crossings - part 1. Paris:UIC

Monitoring of rail corrugation growth due to irregular wear on a railway metro curve

INNOTRACK Deliverable 4.2.4 -- Improved model for loading and subsequent deterioration due to squats and corrugation

Alarm limits for wheel–rail impact loads – part 1: rail bending moments generated by wheel flats

Alarm limits for wheel–rail impact loads – part 2: analysis of crack growth and fracture

High-frequency vertical wheel-rail contact forces - validation of a prediction model by field testing

Dynamic interaction between train and turnout - full-scale field test and validation of simulation models

Under Sleeper Pads - Influence on Dynamic Train-Track Interaction

Assessment of methods for calculating contact pressure in wheel-rail/switch contact

A Time Domain Model for Wheel/Rail Interaction Aiming to Include Non-linear Contact Stiffness and Tangential Friction

Stochastic analysis of dynamic interaction between train and turnout

Rail roughness level assessment based on high-frequency wheel-rail contact force measurements

Larmgräns för hjulskadedetektorer – En utredning av risk för rälbrott på Malmbanan

Dynamic interaction between train and railway turnout – full-scale field test and validation of simulation models

INNOTRACK Deliverable 4.2.1 -- Simplified relation for the influence of rail/joint degradation on operational loads and subsequent deterioration

Subsurface initiated rolling contact fatigue of railway wheels as generated by rail corrugation

Rail Corrugation Growth - Influence of Powered Wheelsets with Wheel Tread Irregularities

Rail roughness level assessment based on high-frequency wheel–rail contact force measurements

2007

A time domain model for the wheel/rail interaction aiming to include non-linear contact stiffness and tangential friction

Railway vehicle/track interaction analysis using a modal substructuring approach

Assessment of methods for calculating contact pressure in wheel–rail/switch contact

Prediction of dynamic train-track interaction and subsequent material deterioration in the presence of insulated rail joints

Simulation of dynamic interaction between train and railway turnout

High-frequency vertical wheel–rail contact forces – validation of a prediction model by field testing

Under sleeper pads – influence on dynamic train–track interaction

Multi-disciplinary optimization of railway wheels

Influence of short-pitch wheel/rail corrugation on rolling contact fatigue of railway wheels

Fatigue evaluation of surface coated railway rails using shakedown theory, finite element calculations, and lab and field trials

Influence of railway wheel flat impact on crack growth in rails

Prediction of dynamic train–track interaction and subsequent material deterioration in the presence of insulated rail joints

Two-material rail development: field test results regarding rolling contact fatigue and squeal behaviour

Out-of-Round Railway Wheels - Influence of Powered Wheelsets with Tread Braking on Rail Corrugation Growth

Simulation of dynamic train-track interaction with state-dependent track properties

Multi-disciplinary optimization of railway wheels

Integrated analysis of dynamic train–track interaction and rolling contact fatigue

Train-Track Interaction and Mechanisms of Irregular Wear on Wheel and Rail Surfaces

Out-of-Round Railway Wheels - Wheel-Rail Contact Forces and Track Response Derived from Field Tests and Numerical Simulations

Two-material rail development: Field test results regarding rolling contact fatigue and squeal behaviour

Prevention of RCF damage in curved track through development of the INFRA-STAR two-material rail

Two-material rail for RCF and noise control

Researchers on the track of wheel-rail interaction

Integrating rolling contact fatigue analysis with simulation of dynamic train–track interaction

Two-material rail development to prevent rolling contact fatigue and to reduce noise levels in curved rail track

Railway Wheel Out-of-Roundness - Influence on Wheel/Rail Contact Forces and Track Response

Out-of-Round Railway Wheels - a Literature Survey

Out-of-Round Railway Wheels - A Literature Survey

Train---Track Interaction. Coupling of Moving and Stationary Dynamic Systems: Theoretical and Experimental Analysis of Railway Structures Considering Wheel and Track Imperfections