Results 1 to 10 of about 338 (111)
A Novel Description Method for Track Irregularity Evolution [PDF]
International Journal of Computational Intelligence Systems, 2011 Track Irregularity has a significant influence on the safety of train operation. Due to the fact that the extremely large number of factors affect track irregularity it is challenging to find a concise yet effective mathematical method to describe the ...
Peng Xu, Rengkui Liu, Futian Wang
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Sensors, 2017 Railway track irregularity surveying is important for the construction and the maintenance of railway lines. With the development of inertial devices, systems based on Inertial Navigation System (INS) have become feasible and popular approaches in track ...
Wu Wenqi
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Track Irregularity Time Series Analysis and Trend Forecasting [PDF]
Discrete Dynamics in Nature and Society, 2012 The combination of linear and nonlinear methods is widely used in the prediction of time series data. This paper analyzes track irregularity time series data by using gray incidence degree models and methods of data transformation, trying to find the ...
Jia Chaolong +3 more
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Analysis and forecast of track composite irregularity
Procedia Engineering, 2011 AbstractTrack composite irregularity is the source of violent harassment of the wheel-rail system. They cause a vibration, and the track irregularity has the significant impact on train's driving security, stability, the life of track component and the vehicles as well as the environmental noise.
Jia, Chaolong +2 more
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Research on characterization methods for track irregularities
Railway Engineering ScienceThe characterization of track irregularities is crucial in railway dynamics, as track irregularities are the primary source of internal excitation in railway systems.
Lifeng Xin +5 more
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Track Irregularity Identification Method of High-Speed Railway Based on CNN-Bi-LSTM
SensorsTrack smoothness has become an important factor in the safe operation of high-speed trains. In order to ensure the safety of high-speed operations, studies on track smoothness detection methods are constantly improving.
Jinsong Yang +2 more
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Experimental study on track irregularity of straddle-type monorail
Scientific ReportsAs straddle-type monorail systems evolve toward higher operational speeds, steeper gradients, and more diverse structural configurations, the design of guideway beams has become increasingly complex.
Zengchuang Zhao, Pingbo Wu, Lihui Ren
doaj +4 more sources
Stochastic Modelling of Track Irregularities [PDF]
Civil-Comp Proceedings, 2011 This paper presents a methodology to build representative railway track geometries thanks to a stochastic modelling. This modelling, which has to integrate the statistical and spatial variabilities and dependencies, is a key issue when using simulation for conception, maintenance or certification purposes, as the dynamic behaviour of the trains is ...
Perrin, G. +3 more
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Track irregularities stochastic modeling [PDF]
Probabilistic Engineering Mechanics, 2013 A better understanding of the interaction between the dynamics of high speed trains and the track geometry is needed. As during its lifecycle, the train faces a great variability of track conditions, this dynamic behavior has indeed to be characterized on track portions sets that are representative of the whole railway network.
Perrin, Guillaume +3 more
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Estimation of Lateral Track Irregularity Through Kalman Filtering Techniques [PDF]
IEEE Access, 2021 The aim of this work is to develop a model-based methodology for monitoring lateral track irregularities based on the use of inertial sensors mounted on an in-service train. To this end, a gyroscope is used to measure the wheelset yaw angular velocity and two accelerometers are used to measure lateral acceleration of the wheelset and the bogie frame ...
Sergio Muñoz +3 more
openaire +6 more sources