Search Results - "Ulf Gerber"

Analysis of Track Bending Stiffness and Loading Distribution Effect in Rail Support by Application of Bending Reinforcement Methods by Nabochenko, Olga, Sysyn, Mykola, Gerber, Ulf, Krumnow, Norman

“…Railway track is a linearly inhomogeneous object that consists of geometrical and elastic discontinuities such as bridges, transition zones, rail joints and…”
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The complex phenomenological model for prediction of inhomogeneous deformations of railway ballast layer after tamping works by Mykola Sysyn, Ulf Gerber, Vitalii Kovalchuk, Olga Nabochenko

“…The given article considers the method of calculating the track geometry deformation with respect to uneven accumulation of residual deformations along the…”
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Prediction of Rail Contact Fatigue on Crossings Using Image Processing and Machine Learning Methods by Sysyn, Mykola, Gerber, Ulf, Nabochenko, Olga, Gruen, Dmitri, Kluge, Franziska

“…In this paper, an application of computer vision and machine learning algorithms for common crossing frog diagnostics is presented. The rolling surface fatigue…”
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EVALUATION OF RAILWAY BALLAST LAYER CONSOLIDATION AFTER MAINTENANCE WORKS by Sysyn, Mykola, Nabochenko, Olga, Kovalchuk, Vitalii, Gerber, Ulf

“…The results of the study of the ballast layer consolidation after the work of ballast-tamping machines of different types are given in the article. The…”
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Analysis of the Stressed State of Sand-Soil Using Ultrasound by Schumacher, Lukas Benedikt, Sysyn, Mykola, Gerber, Ulf, Fischer, Szabolcs

“…The maintenance of the ballast substructure is an important cost-driver for railway systems. The problem is that today’s condition monitoring methods are…”
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INDICATORS FOR COMMON CROSSING STRUCTURAL HEALTH MONITORING WITH TRACK-SIDE INERTIAL MEASUREMENTS by Sysyn, Mykola, Gerber, Ulf, Nabochenko, Olga, Li, Yangyang, Kovalchuk, Vitalii

“…This paper focuses on the experimental study of an alteration in the railway crossing dynamic response due to the rolling surface degradation during a…”
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Stiffness and strength of structural layers from cohesionless material by Ulf Gerber, Mykola Sysyn, Jandab Zarour, Olga Nabochenko

“…The deformation modulus and permissible stress are two independent parameters that depict the carrying capacity of foundations, including earthworks and…”
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EXPERIMENTAL INVESTIGATION OF THE INFLUENCE OF TRAIN VELOCITY AND TRAVEL DIRECTION ON THE DYNAMIC BEHAVIOR OF STIFF COMMON CROSSINGS by Kovalchuk, Vitalii, Sysyn, Mykola, Gerber, Ulf, Nabochenko, Olga, Zarour, Jandab, Dehne, Stefan

“…Common crossing rails are subjected to a rapid deterioration of the rolling surface due to a dynamic loading of trains. The present study is devoted to an…”
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A Laboratory Study of Pressure Distribution and Residual Settlements in Wide Grading Double Layer Railway Ballast under Long-Term Cyclic Loading by Sysyn, Mykola, Gerber, Ulf, Nabochenko, Olga, Dehne, Stefan

“…Ballast layer has weighty share in the lifecycle costs of railway track. The strict standards and maintenance rules of ballast grading significantly contribute…”
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COMMON CROSSING CONDITION MONITORING WITH ON BOARD INERTIAL MEASUREMENTS by Sysyn, Mykola, Nabochenko, Olga, Gerber, Ulf, Kovalchuk, Vitalii, Petrenko, Oleksiy

“…A railway turnout is an element of the railway infrastructure that influences the reliability of a railway traffic operation the most. The growing necessity…”
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Turnout Monitoring with Vehicle Based Inertial Measurements of Operational Trains: A Machine Learning Approach by Mykola Sysyn, Dimitri Gruen, Ulf Gerber, Olga Nabochenko, Vitalii Kovalchuk

“…A machine learning approach for the recent detection of crossing faults is presented in the paper. The basis for the research are the data of the axle box…”
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Laboratory Evaluation of Railway Ballast Consolidation by the Non-Destructive Testing by Mykola Sysyn, Vitalii Kovalchuk, Ulf Gerber, Olga Nabochenko, Bogdan Parneta

“…The property of railway track to resist the irreversible deformation for a long-term operational loading considerably depends on the ballast layer. The ballast…”
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Comparison of the effects and efficiency of vertical and side tamping methods for ballasted railway tracks by Przybyłowicz, Michał, Sysyn, Mykola, Gerber, Ulf, Kovalchuk, Vitalii, Fischer, Szabolcs

“…•Wave propagation and interlocking stresses in ballast during tamping is presented.•Residual stresses significantly influence the wave propagation in the…”
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Studying the Relation of the Residual Stresses in the Ballast Layer to the Elastic Wave Propagation by Sysyn, Mykola, Gerber, Ulf, Liu, Jianxing, Fischer, Szabolcs

“…During track construction or ballast bed maintenance, ballast layer compaction quality plays an essential role in the following track irregularity…”
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Frog Digital Model and Vibration Study to Extend Service Life by Kou, Lei, Sysyn, Mykola, Gruen, Dimitri, Gerber, Ulf

“…Since there is a gap in the running surface and thus discontinuous place at the frog, there are during the trip an additional load caused by this gap. For this…”
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A RELATIONSHIP BETWEEN THE SERVICE LIFE OF THE PERMANENT WAY AND THE INHOMOGENEITY OF THE SUBSTRUCTURE by Gerber, Ulf

“…The inhomogeneity of the substructure will be described by the so-called variance of the substructure in this paper. The result will be a formulation of the…”
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