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Journal articles on the topic 'Model of railway track'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Kwon, Tae Ho, Sang I. Park, Young-Hoon Jang, and Sang-Ho Lee. "Design of Railway Track Model with Three-Dimensional Alignment Based on Extended Industry Foundation Classes." Applied Sciences 10, no. 10 (2020): 3649. http://dx.doi.org/10.3390/app10103649.

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Building information modeling (BIM) has been widely applied in conjunction with the industry foundation class (IFC) for buildings and infrastructure such as railways. However, a limitation of the BIM technology presents limitations that make designing the three-dimensional (3D) alignment-based information models difficult. Thus, the time and effort required to create a railway track model are increased, while the reliability of the model is reduced. In this study, we propose a methodology for developing an alignment-based independent railway track model and extended IFC models containing railw

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2

Elkhoury, Najwa, Lalith Hitihamillage, Sara Moridpour, and Dilan Robert. "Degradation Prediction of Rail Tracks: A Review of the Existing Literature." Open Transportation Journal 12, no. 1 (2018): 88–104. http://dx.doi.org/10.2174/1874447801812010088.

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In the past few decades, the railway infrastructure has been widely expanded in urban and rural areas, making it the most complex matrix of rail transport networks. Safe and comfortable travel on railways has always been a common goal for transportation engineers and researchers, and requires railways in excellent condition and well-organized maintenance practices. Degradation of rail tracks is a main concern for railway organizations as it affects the railway’s behaviour and its parameters, such as track geometry, speed, traffic and loads. Therefore, the prediction of the degradation of rail

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Bikov, Andrey, and Kristina Chelyadinova. "THE DIGITAL PROJECT OF THE TRACK AND ELECTRONIC MAPS FOR THE CONSTRUCTION AND REPAIR OF THE RAILWAY." Interexpo GEO-Siberia 1, no. 1 (2019): 92–98. http://dx.doi.org/10.33764/2618-981x-2019-1-1-92-98.

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Development of technology based on electronic maps and GNSS informational support of railways is one of the directions for the development of digital railways. As part of the implementa-tion of this direction, a software complex for maintenance of repairs and construction of railway tracks was developed based on the digital project of the track. This complex allows solving the tasks of preparing a working draft of repair and construction of a railway track, preparing completed doc-umentation, positioning on the ground with a digital model displayed on the track, also functions of linear refere

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4

Jwa, Y., and G. Sonh. "KALMAN FILTER BASED RAILWAY TRACKING FROM MOBILE LIDAR DATA." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences II-3/W5 (August 19, 2015): 159–64. http://dx.doi.org/10.5194/isprsannals-ii-3-w5-159-2015.

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This study introduces a new method to reconstruct 3D model of railway tracks from a railway corridor scene captured by mobile LiDAR data. The proposed approach starts to approximate the orientation of railway track trajectory from LiDAR point clouds and extract a strip, which direction is orthogonal to the trajectory of railway track. Within the strip, a track region and its track points are detected based on the Bayesian decision process. Once the main track region is localized, rail head points are segmented based on the region growing approach from the detected track points and then initial

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5

Latkar, Charu. "Railway Track Monitoring System." International Journal for Research in Applied Science and Engineering Technology 9, no. VII (2021): 1403–10. http://dx.doi.org/10.22214/ijraset.2021.36134.

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For the protection and proximity of railway networks it is substantial to Promptly detect and identify faults in the railway tracks. In this paper, railway track fault diagnosis is approximated from the vertical and lateral acceleration using a MPU6050. MPU6050 consisting of three sensors namely gyroscope, magnetometer and accelerometer are used to distinguish line and level as symetricities in a railway track. A GSM module is used to notify the location of faults on tracks. Arduino Microcontroller is interfaced using Arduino UNO IDE. The results show that the condition of railway track irregu

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Sadri, Mehran, Tao Lu, Arjen Zoeteman, and Michaël Steenbergen. "Railway track design & degradation." MATEC Web of Conferences 211 (2018): 11006. http://dx.doi.org/10.1051/matecconf/201821111006.

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The long-term behaviour of railway track has attracted increasing attention in recent years. Improvements in long-term structural performance reduce demands for maintenance and increase the continuous availability of railway lines. The focus of this paper is on the prediction of the sensitivity of a track design to long-term deterioration in terms of track geometry. According to the state of the art literature, degradation is often investigated using empirical models based on field measurement data. Although a rough maintenance forecast may be made employing empirical models, the predictions a

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Zougari, A., and J. MartÍnez. "The experimental validation of a numerical model for the receptance prediction." MATEC Web of Conferences 286 (2019): 01007. http://dx.doi.org/10.1051/matecconf/201928601007.

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The traditional ballasted track with wooden sleepers covers today most railway lines constructions, including the tracks of tram and metro or the industrial railway branching. In this work, we present an experimental methodology to validate a numerical model based on finite element method, the model was previously well defined using the ANSYS Parametric Design Language (APDL) and adapted to represent a classical ballasted track. The obtained result of the analysis is expressed as a frequency response of the track and it is compared to the experimental result from measurements made on the metro

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8

Wu, Qing, Yan Sun, Maksym Spiryagin, and Colin Cole. "Railway track longitudinal force model." Vehicle System Dynamics 59, no. 1 (2019): 155–70. http://dx.doi.org/10.1080/00423114.2019.1673445.

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9

Zhou, Ge. "Railway Track Irregularity Data Mining and Time Series Trend Forecasting Research." Applied Mechanics and Materials 666 (October 2014): 272–75. http://dx.doi.org/10.4028/www.scientific.net/amm.666.272.

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Railway track ride is one of the important indicators of the state of the tracks,This article making railway track irregularity data mining,The paper railway track irregularity data mining,data analysis implied regularity and A mathematical model to predict the time-series trends in research,Analysis of the data implied regularity and Build mathematical model getting on time series trend forecasting research.

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10

Chen, Zhaowei, Wanming Zhai, and Qiang Yin. "Analysis of structural stresses of tracks and vehicle dynamic responses in train–track–bridge system with pier settlement." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 232, no. 2 (2016): 421–34. http://dx.doi.org/10.1177/0954409716675001.

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Pier settlement causes deformation of bridge structures, and further distorts the track structures placed on bridge decks, which may greatly affect the service life of the tracks and safe operation of trains. This study analyzes track stresses and vehicle dynamic responses in train–track–bridge system with pier settlement and determines the pier settlement safe value for high-speed railways with China Railway Track System (CRTS) II slab tracks. First, a detailed train–track–bridge dynamic model is established based on the train–track–bridge dynamic interaction theory. Verified with field exper

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11

Karunathilake, Amila, Ryohei Honma, and Yasuhito Niina. "Self-Organized Model Fitting Method for Railway Structures Monitoring Using LiDAR Point Cloud." Remote Sensing 12, no. 22 (2020): 3702. http://dx.doi.org/10.3390/rs12223702.

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Mobile laser scanning (MLS) has been successfully used for infrastructure monitoring apt to its fine accuracy and higher point density, which is favorable for object reconstruction. The massive data size, computational time, wider spatial distribution and feature extraction become a challenging task for 3D point data processing with MLS point cloud receives from terrestrial structures such as buildings, roads and railway tracks. In this paper, we propose a new approach to detect the structures in-line with railway track geometry such as railway crossings, turnouts and quantitatively estimate t

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12

Mosayebi, Seyed-Ali, Jabbar Ali Zakeri, and Morteza Esmaeili. "Effects of train bogie patterns on the mechanical performance of ballasted railway tracks with unsupported sleepers." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 232, no. 1 (2016): 238–48. http://dx.doi.org/10.1177/0954409716664932.

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The support condition of railway sleepers has a significant effect on the mechanical behavior of railway tracks due to the passing of different trains. One of the important issues in this regard relates to existing unsupported sleepers on the railway tracks. These sleepers cause changes in the dynamic responses of railway tracks under a moving train. In the literature, the effects of train bogie patterns on the behavior of tracks with and without unsupported sleepers have not been completely investigated till now. Therefore, the present study investigates this issue using numerical analyses. I

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13

Di, Guoqing, Ziyin Xie, and Jingyi Guo. "Predict the Influence of Environmental Vibration from High-Speed Railway on Over-Track Buildings." Sustainability 13, no. 6 (2021): 3218. http://dx.doi.org/10.3390/su13063218.

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The vibration caused by railways is an environmental constraint in the development of over-track buildings. To study the influence of environmental vibration from the high-speed railway on over-track buildings, a finite element model including track, soil, and buildings was set up. Based on the vertical vibration acceleration sampled on the rail, the equivalent line load acting on rails vertically was obtained by a simplified model. On the basis of verifying the simulation model by measurement results, the vertical vibration induced by high-speed railways in over-track buildings was studied qu

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14

Zhang, Xu, Chunfa Zhao, Wanming Zhai, Can Shi, and Yang Feng. "Investigation of track settlement and ballast degradation in the high-speed railway using a full-scale laboratory test." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 233, no. 8 (2018): 869–81. http://dx.doi.org/10.1177/0954409718812231.

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This paper presents a full-scale laboratory test for investigating the track settlement and ballast degradation of the ballasted track–subgrade system on the high-speed railways. The test was carried out on a full-scale test platform with a ballasted track–subgrade system constructed exactly according to the construction standards of high-speed railways in China. In this test, four million cycles of cyclic loads simulating repeated high-speed train loads with an axle load of 140 kN were applied to the ballasted track–subgrade system through a specialized loading system. The vertical displaceme

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15

SADEGHI, J., and M. FESHARAKI. "IMPORTANCE OF NONLINEARITY OF TRACK SUPPORT SYSTEM IN MODELING OF RAILWAY TRACK DYNAMICS." International Journal of Structural Stability and Dynamics 13, no. 01 (2013): 1350008. http://dx.doi.org/10.1142/s0219455413500089.

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Attention is drawn to the fact that the recent increase in axle loads, speed and traffic volume in railway tracks, as well as concerns over passengers' riding comfort and safety have resulted in fresh challenges that are needed to be addressed. These challenges can only be successfully tackled with a more accurate modeling of the dynamic behavior of railway tracks. Although a significant amount of research involving mathematical modeling of railway track dynamics has been conducted in the last two decades, the nonlinearity of track support systems has not been given sufficient attention. This

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16

Kapoor, Rajiv, Rohini Goel, and Avinash Sharma. "Deep Learning Based Object and Railway Track Recognition Using Train Mounted Thermal Imaging System." Journal of Computational and Theoretical Nanoscience 17, no. 11 (2020): 5062–71. http://dx.doi.org/10.1166/jctn.2020.9342.

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An intelligent railways safety system is very essential to avoid the accidents. The motivation behind the problem is the large number of collisions between trains and various obstacles, resulting in reduced safety and high costs. Continuous research is being carried out by distinct researchers to ensure railway safety and to reduce accident rates. In this paper, a novel method is proposed for identifying objects (obstacles) on the railway tracks in front of a moving train using a thermal camera. This approach presents a novel way of detecting the railway tracks as well as a deep network based

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17

Fenander, Å. "A FRACTIONAL DERIVATIVE RAILPAD MODEL INCLUDED IN A RAILWAY TRACK MODEL." Journal of Sound and Vibration 212, no. 5 (1998): 889–903. http://dx.doi.org/10.1006/jsvi.1997.1483.

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18

Vale, Cecília, and Isabel M. Ribeiro. "RAILWAY CONDITION-BASED MAINTENANCE MODEL WITH STOCHASTIC DETERIORATION." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 20, no. 5 (2014): 686–92. http://dx.doi.org/10.3846/13923730.2013.802711.

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The application of mathematical programming for scheduling preventive maintenance in railways is relatively new. This paper presents a stochastic mathematical model designed to optimize and to predict tamping operations in ballasted tracks as preventive condition-based maintenance. The model is formulated as a mixed 0–1 nonlinear program that considers real technical aspects as constraints: the reduction of the geometrical track quality over time is characterized by the deterioration rate of the standard deviation of the longitudinal level; the track layout; the dependency of the track recover

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19

Altyntsev, Maxim, Ivan Shcherbakov, and Stepan Tretyakov. "APPLICATION OF UNMANNED AERIAL VEHICLES FOR THE AS-BUILT SURVEY OF RAILWAYS." Interexpo GEO-Siberia 1, no. 1 (2019): 111–18. http://dx.doi.org/10.33764/2618-981x-2019-1-1-111-118.

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The as-built survey of railways is one of unmanned aerial vehicle (UAV) application fields. Digital surface models (DSM) are the results of UAV survey data processing. Concerning railways, they are used for receiving information about railway track position and distance between tracks, obstruction clearance, for generating longitudinal and cross profiles. For generating high accuracy DSM, regularly distributed control and check points within a survey area are necessary to be used. As these points rail track axis points, measured during a hardware-software system «Profile-M» movement, can be us

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20

Lee, Yong-Seon, Sang-Hyo Kim, and Jun Jung. "Three-Dimensional Finite Element Analysis Model of High-Speed Train-Track-Bridge Dynamic Interactions." Advances in Structural Engineering 8, no. 5 (2005): 513–28. http://dx.doi.org/10.1260/136943305774858034.

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The dynamic behavior is a complicated characteristic in analysis of a railway bridge when it is incorporated with the effect of railway track. Even though it is not an ignorable component, the coupling effect with the railway track in the dynamic response of a railway bridge has been ignored or just simplified in the past researches. Therefore, this study conducts a numerical analysis of track effect on the railway bridge, and the comparison between the dynamic responses with three-dimensional (3D) discrete support track model and those without it is examined. Dynamic amplitude incorporated wi

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21

Li, Wei, Xuecheng Bian, Xiang Duan, and Erol Tutumluer. "Full-Scale Model Testing on Ballasted High-Speed Railway: Dynamic Responses and Accumulated Settlements." Transportation Research Record: Journal of the Transportation Research Board 2672, no. 10 (2018): 125–35. http://dx.doi.org/10.1177/0361198118784379.

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High-speed trains generate much higher vibrations in track structures than conventional trains and intensive train passages (e.g., on the Beijing–Shanghai high-speed railway line where the train passage interval is less than 5 minutes) cause accumulated permanent settlement in the railway track substructures, which will decrease track performance and jeopardize the safety of trains. Since very few field measurements on ballasted high-speed railways are available in literature, this paper presents experimental results of vibration velocity, dynamic soil stress, and the accumulated settlement of

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22

Podwórna, M. "Modelling Of Random Vertical Irregularities Of Railway Tracks." International Journal of Applied Mechanics and Engineering 20, no. 3 (2015): 647–55. http://dx.doi.org/10.1515/ijame-2015-0043.

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Abstract The study presents state-of-the-art in analytical and numerical modelling of random vertical irregularities of continuously welded ballasted railway tracks. The common model of railway track irregularity vertical profiles is applied, in the form of a stationary and ergodic Gaussian process in space. Random samples of track irregularity vertical profiles are generated with the Monte-Carlo method. Based on the numerical method developed in the study, the minimum and recommended sampling number required in the random analysis of railway bridges and number of frequency increments (harmoni

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23

Smirnov, Vladimir. "Dynamic analysis of railway track with vibration isolated booted sleepers." MATEC Web of Conferences 196 (2018): 01045. http://dx.doi.org/10.1051/matecconf/201819601045.

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The article deals with dynamic analysis of a railway track in a tunnel or on surface. Instead of concrete sleepers, booted ones are used, with additional under-sleeper pad made of elastomeric material. Introduction of additional elasticity in the railway track increases both the track elasticity and resultant service life and has some vibration isolation effect. Using the infinite length beam model with Winkler supports, the insertion loss of such a system is studied and appropriate pad stiffness is derived that can effectively reduce vibration arising from the railway track. Finite element (F

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24

ElMaraghy, W. H., and R. V. Dukkipati. "LATERAL STABILITY ANALYSIS OF A RAILWAY TRUCK ON ROLLER RIG." Transactions of the Canadian Society for Mechanical Engineering 21, no. 3 (1997): 317–26. http://dx.doi.org/10.1139/tcsme-1997-0015.

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Generic linear models were developed of a freight car (with a characteristic North American three-piece truck) on tangent track. The models were developed using the generalized multi-body dynamics software MEDYNA. Predictions were made of the theoretical linear model hunting (lateral stability) characteristics of the freight car, i.e., the critical speeds and frequencies, for five different configurations: (a) freight car on track, (b) the freight car’s front truck on the roller stand and its rear truck on track, (c) freight car on the roller rig, (d) a single truck on track and (e) single tru

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Zhai, W. M., Q. C. Wang, Z. W. Lu, and X. S. Wu. "Dynamic effects of vehicles on tracks in the case of raising train speeds." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 215, no. 2 (2001): 125–35. http://dx.doi.org/10.1243/0954409011531459.

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In order to enhance the efficiency of railway transportation, Chinese Railways has decided to raise the speed of trains on the existing railway main lines. A theoretical model and the corresponding simulation software, VICT, based on the vehicle-track coupling dynamics are employed to analyse dynamic effects of trains on track structures caused by raising train speeds. Chinese passenger cars and freight cars running on the lines where speed has been raised were chosen for investigation. It is shown that raising train speeds on the existing railway lines obviously intensifies the dynamic effect

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26

Zhu, Shengyang, Jun Luo, Mingze Wang, and Chengbiao Cai. "Mechanical characteristic variation of ballastless track in high-speed railway: effect of train–track interaction and environment loads." Railway Engineering Science 28, no. 4 (2020): 408–23. http://dx.doi.org/10.1007/s40534-020-00227-6.

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AbstractDue to the fact that ballastless tracks in high-speed railways are not only subjected to repeated train–track dynamic interaction loads, but also suffer from complex environmental loads, the fundamental understanding of mechanical performance of ballastless tracks under sophisticated service conditions is an increasingly demanding and challenging issue in high-speed railway networks. This work aims to reveal the effect of train–track interaction and environment loads on the mechanical characteristic variation of ballastless tracks in high-speed railways, particularly focusing on the ty

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Kaewunruen, Sakdirat, Tomasz Lewandrowski, and Kritditorn Chamniprasart. "Dynamic Responses of Interspersed Railway Tracks to Moving Train Loads." International Journal of Structural Stability and Dynamics 18, no. 01 (2018): 1850011. http://dx.doi.org/10.1142/s0219455418500116.

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This paper investigates novel dynamic phenomena of interspersed railway tracks. The interspersed method is commonly carried out by spot-replacing old timber sleepers with new concrete sleepers. Although this interspersed approach provides a short-term solution, such method has a negative effect on the long-term performance of railway tracks. It is evident that the performance of interspersed tracks can quickly deteriorate after some years. As a result, this paper is the first to evaluate dynamic responses of the interspersed track caused by a moving train load in order to understand the root c

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Li, Qing, Qiyuan Peng, Rengkui Liu, Ling Liu, and Lei Bai. "Track grid health index for grid-based, data-driven railway track health evaluation." Advances in Mechanical Engineering 11, no. 11 (2019): 168781401988976. http://dx.doi.org/10.1177/1687814019889768.

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Railway managers must have accurate assessments of railway track health to optimize maintenance and replacement scheduling and allocate resources reasonably. A model for railway track health evaluation, in which a continuous track line is divided into adjacent segments of the same length, referred to as track grids, is proposed in this study. A condition-evaluation index system for track grids was established, and deep autoencoder networks were used to reduce the dimensions of data on multiple condition measures. The set of all possible health features of the track grids was obtained using the

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Burrow, Michael P. N., Jin Shi, Mohamed Wehbi, and Gurmel S. Ghataora. "Assessing the Damaging Effects of Railway Dynamic Wheel Loads on Railway Foundations." Transportation Research Record: Journal of the Transportation Research Board 2607, no. 1 (2017): 62–73. http://dx.doi.org/10.3141/2607-09.

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Dynamic train wheel loads, which can be significantly greater than static loads, occur because of a variety of factors and unless they are properly considered in track structural design, significant unplanned maintenance and premature track failure may result. This is particularly so for traditional ballasted railways built on soft foundations, because although ballast lends itself to maintenance, it is often problematic and costly to repair damaged foundations. A novel rigorous analytical–numerical approach is described to predict and characterize, for the first time, the damage to which rail

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Baier, Martin, Wolfgang Rulka, and Dirk Abel. "Model Based Measurement of Railway Track Irregularities." IFAC Proceedings Volumes 42, no. 15 (2009): 257–62. http://dx.doi.org/10.3182/20090902-3-us-2007.0013.

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Burrow, M. P. N., S. Naito, and H. T. Evdorides. "Network-Level Railway Track Maintenance Management Model." Transportation Research Record: Journal of the Transportation Research Board 2117, no. 1 (2009): 66–76. http://dx.doi.org/10.3141/2117-09.

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Javaid, Omer, and Dong-Ho Choi. "Effect of Track Irregularities on the Response of Two-Way Railway Tracks." Applied Sciences 10, no. 1 (2019): 11. http://dx.doi.org/10.3390/app10010011.

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In predicting the response of track from a moving train only one track is generally considered. However, the effect of ground vibrations from one track and its effect on the nearby tracks has not been studied completely. Therefore, in the present paper, the effect of track irregularities and speed on the prediction of two-way tracks response is investigated. For this purpose, a three-dimensional dynamic finite element (FE) model capable of simulating interactions between the train and track by using a nonlinear hertz contact method was developed. The model uses tensionless stiffness between th

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Liu, Wei, Xiaoning Zhu, and Liujiang Kang. "Real-Time Track Reallocation for Emergency Incidents at Large Railway Stations." Mathematical Problems in Engineering 2015 (2015): 1–11. http://dx.doi.org/10.1155/2015/296394.

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After track capacity breakdowns at a railway station, train dispatchers need to generate appropriate track reallocation plans to recover the impacted train schedule and minimize the expected total train delay time under stochastic scenarios. This paper focuses on the real-time track reallocation problem when tracks break down at large railway stations. To represent these cases, virtual trains are introduced and activated to occupy the accident tracks. A mathematical programming model is developed, which aims at minimizing the total occupation time of station bottleneck sections to avoid train

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Roshchin, Dmitriy A. "Improving the accuracy of forming a digital terrain model along the railway." Izmeritel`naya Tekhnika, no. 2 (2021): 22–29. http://dx.doi.org/10.32446/0368-1025it.2021-2-22-29.

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The problem of improving the accuracy of digital terrain models created for monitoring and diagnostics of the railway track and the surrounding area is considered. A technical solution to this problem is presented, which includes a method for joint aerial photography and laser scanning, as well as a method for digital processing of the obtained data. The relevance of using this solution is due to the existence of zones of weak reception of signals from the global navigation satellite system, since in these zones the accuracy of constructing digital terrain models using currently used diagnosti

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Wang, Mingze, Chengbiao Cai, Shengyang Zhu, and Wanming Zhai. "Experimental study on dynamic performance of typical nonballasted track systems using a full-scale test rig." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 231, no. 4 (2016): 470–81. http://dx.doi.org/10.1177/0954409716634751.

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This paper presents an experimental study on dynamic performance of China Railway Track System (CRTS) series track systems using a full-scale test rig. The test rig has been constructed based on 55.17 m long full-scale nonballasted tracks composed of four typical CRTS track elements in high-speed railways. First, the dynamic characteristics of different nonballasted tracks are investigated by conducting wheel-drop tests, where a wheel-drop testing vehicle with a dropping wheelset is devised to provide the wheel-drop load. The vibration levels of different track systems are assessed by the root

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BAIER, Andrzej, Michał MAJZNER, and Krzysztof JAMROZIAK. "ANALYSIS OF RAILWAY CARRIAGE MOVEMENT ON CURVED TRACK." Scientific Journal of the Military University of Land Forces 158, no. 4 (2010): 15–28. http://dx.doi.org/10.5604/01.3001.0002.2719.

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The paper focuses on the analysis of movement of a railway carriage on a curved track. The computer model was made in the Siemens PLM Software NX and the simulation process was performed in the ADAMS software. The investigation included the specification of track sections, by dividing the acceleration storage section to a specified speed and distance of movement on the cusp. The simulation was performed using two models: movement without load and when fully loaded. The result of the analysis is shown in the graphs illustrating the pressure of wheel sets on the tracks and the pressure load on t

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Grassie, S. L., and S. J. Cox. "The Dynamic Response of Railway Track With Unsupported Sleepers." Proceedings of the Institution of Mechanical Engineers, Part D: Transport Engineering 199, no. 2 (1985): 123–36. http://dx.doi.org/10.1243/pime_proc_1985_199_149_01.

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The dynamic response of railway track with a section of unsupported sleepers is examined experimentally and a mathematical model of such track is presented. The principal function of ballast at frequencies above 100 Hz is to damp vibration of the track while the resilience of the railpad attenuates forces transmitted to the sleeper. In the absence of ballast, concrete sleepers are likely to crack if there are modest wheel or railhead irregularities.

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Xie, Jiawei, Jinsong Huang, Cheng Zeng, Shui-Hua Jiang, and Nathan Podlich. "Systematic Literature Review on Data-Driven Models for Predictive Maintenance of Railway Track: Implications in Geotechnical Engineering." Geosciences 10, no. 11 (2020): 425. http://dx.doi.org/10.3390/geosciences10110425.

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Conventional planning of maintenance and renewal work for railway track is based on heuristics and simple scheduling. The railway industry is now collecting a large amount of data with the fast-paced development of sensor technologies. These data sets carry information about the conditions of various components in railway track. Since just before the beginning of the 21st century, data-driven models have been used in the predictive maintenance of railway track. This study presents a systematic literature review of data-driven models applied in the predictive maintenance of railway track. A tax

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Balekwa, Bingo Masiza, and Daramy Vandi Von Kallon. "Correlation of Short Pitch Rail Corrugation with Railway Wheel-Track Resonance at Low Frequencies of Excitation." Vibration 3, no. 4 (2020): 491–520. http://dx.doi.org/10.3390/vibration3040031.

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As much as there has been a significant increase in the development of railway systems in recent years, one of the significant drawbacks on this mode of transport is ground-borne vibrations and noise emanating from vehicle-track interaction in service. This greatly affects the ecology and physical surroundings of the railway track. Experimental tests and Finite Element modal and complex eigenvalue analysis are conducted to investigate the dynamics of a traction wheelset and rail track. This is done to establish the correlation between the short pitch rail corrugation in the Belfast to Steelpoo

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Simson, Scott A., Luis Ferreira, and Martin H. Murray. "Rail Track Maintenance Planning: An Assessment Model." Transportation Research Record: Journal of the Transportation Research Board 1713, no. 1 (2000): 29–35. http://dx.doi.org/10.3141/1713-05.

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In Australian rail freight operations, railway track maintenance makes up between 25 and 35 percent of total train operating costs. Models have shown that track maintenance costs can be reduced by 5 to 10 percent through improved planning. The Track Maintenance Planning Model (TMPM) has been developed to deal with the track maintenance planning function in the medium to long term. In contrast to traditional models, which mainly use expert systems, TMPM simulates the impacts of railway track conditions and related maintenance work by using an existing track degradation model. Track condition da

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Ganesh Babu, K., and C. Sujatha. "Track Modulus Analysis of Railway Track System Using Finite Element Model." Journal of Vibration and Control 16, no. 10 (2010): 1559–74. http://dx.doi.org/10.1177/1077546309341600.

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Guo, Ran, and Bao Ming Han. "Multi-Stage Linear Prediction Model for Railway Track Irregularity." Applied Mechanics and Materials 361-363 (August 2013): 1811–16. http://dx.doi.org/10.4028/www.scientific.net/amm.361-363.1811.

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Railway track irregularity has significant impact on traffic safety. It can ensure high smooth of the track from predicting the deterioration of track irregularities accurately, and then fundamentally eliminate hidden dangers. In this paper, a multi-stage linear prediction method for track local irregularities based on time series is proposed. On the basis of the track irregularity management standard in our country, this paper has researched the changing regularity of irregularities in unit section and built the local irregularities deterioration model for each unit section to forecast the de

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Chaolong, Jia, Xu Weixiang, Wei Lili, and Wang Hanning. "Study of Railway Track Irregularity Standard Deviation Time Series Based on Data Mining and Linear Model." Mathematical Problems in Engineering 2013 (2013): 1–12. http://dx.doi.org/10.1155/2013/486738.

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Good track geometry state ensures the safe operation of the railway passenger service and freight service. Railway transportation plays an important role in the Chinese economic and social development. This paper studies track irregularity standard deviation time series data and focuses on the characteristics and trend changes of track state by applying clustering analysis. Linear recursive model and linear-ARMA model based on wavelet decomposition reconstruction are proposed, and all they offer supports for the safe management of railway transportation.

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Kaewunruen, Sakdirat, Chayut Ngamkhanong, and Xin Liu. "Spectro-Temporal Responses of Curved Railway Tracks with Variable Radii of Arc Curves." International Journal of Structural Stability and Dynamics 19, no. 04 (2019): 1950044. http://dx.doi.org/10.1142/s0219455419500445.

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On curved railway tracks, wheel/rail interface can usually cause a traveling source of sound and vibration, which constitutes high-pitch or tonal noise pollution causing considerable concern to rail asset owners, commuters and people living or working along the railway corridor. The sound and vibration can be in various forms and spectra. The undesirable tonal sound on curves caused by excessive lateral wheel/rail dynamics in resonance with falling friction states are often called ‘squeal noises’. This paper evaluates the transient effect of curve radii on the possible occurrence of lateral tr

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KAEWUNRUEN, SAKDIRAT, and ALEX M. REMENNIKOV. "NONLINEAR TRANSIENT ANALYSIS OF A RAILWAY CONCRETE SLEEPER IN A TRACK SYSTEM." International Journal of Structural Stability and Dynamics 08, no. 03 (2008): 505–20. http://dx.doi.org/10.1142/s0219455408002776.

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Railway sleepers in a track system are usually subjected to a wide range of loading conditions. A critical type of loading condition that causes cracking in the railway concrete sleepers is the dynamic transient wheel force. The transient wheel forces are often due to wheel or rail abnormalities. This paper presents a dynamic finite element model of a railway concrete sleeper in a track system, aimed at raising the consideration of dynamic effects in sleeper design. The railway concrete sleeper is modeled using the beam-on-elastic-foundation theory. Since in the actual tracks the ballast under

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Tanabe, Makoto, Hajime Wakui, Masamichi Sogabe, Nobuyuki Matsumoto, Keiichi Gotou, and Yasuko Tanabe. "Computational Model for a High Speed Train Running on the Railway Structure Including Derailment during an Earthquake." Advanced Materials Research 579 (October 2012): 473–82. http://dx.doi.org/10.4028/www.scientific.net/amr.579.473.

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The computational method to solve for the dynamic interaction between a high-speed train and the railway structure including derailment during an earthquake is given. The motion of the train is expressed in multibody dynamics. Efficient mechanical models to express contact-impact behaviors between wheel and the track structure including derailment during an earthquake are given. Rail and track elements with multibody dynamics and FEM combined have been developed. A nonlinear spring element based on a trilinear elastic-plastic material model with the kinematic hardening is given for a concrete

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Sheng, Xi, Hua Peng Luo, and Ping Wang. "Application of Bentley Power Rail Track Software in the BIM Railway Design." Applied Mechanics and Materials 587-589 (July 2014): 1091–94. http://dx.doi.org/10.4028/www.scientific.net/amm.587-589.1091.

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Belonging to the Bentley Microstation series which work as one of the BIM platforms, the Bentley Power Rail Track shows huge advantages in the railway design for its visibility, high efficiency, advance, reliability and so on. This paper introduces the way to build the digital terrain model, alignments, cross sections, turnouts and to display the three-dimensional model of the railway for the Bentley Power Rail Track 3D railway design software. It provides application preparation for the BIM railway design and achieves the preliminary exploration of BIM applications. Bentley Power Rail Track p

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Abdullah, W. Mohd Zailimi Wan, Hishamuddin Jamaluddin, Mohd Hanif Harun, R. A. Rahman, and K. Hudha. "Modeling and Simulation of Railway Vehicle Using ADAMS/Rail." Applied Mechanics and Materials 548-549 (April 2014): 515–19. http://dx.doi.org/10.4028/www.scientific.net/amm.548-549.515.

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The aim of this paper is to develop computer simulation model of railway vehicle using multibody system (MBS) package. ADAMS/Rail was used in modeling and simulating complex realistic railway vehicle system to study their dynamics response to curve and straight track inputs. The Malaya Railway Limited or Keretapi Tanah Melayu Berhad (KTMB) railway vehicle is used as reference model to develop computer simulation model in ADAMS/rail. Curve track input was based on KTMB rail network with maximum curve radius of 1000 m. Straight track input with random vertical irregularity was applied to the 100

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Bai, Lei, Rengkui Liu, and Qing Li. "Data-Driven Bias Correction and Defect Diagnosis Model for In-Service Vehicle Acceleration Measurements." Sensors 20, no. 3 (2020): 872. http://dx.doi.org/10.3390/s20030872.

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Track quality instruments use low-cost accelerometers placed on or attached to the floors of operating trains, and these instruments collect substantial amounts of data over short inspection periods. The measurements collected by the instruments are the main data source for track irregularity evaluation. However, considerable measurement bias exists in the vertical and lateral vibration data obtained from such instruments. False positive track vibration defects detected by track quality instruments occur frequently. This results in considerable time and effort being expended needlessly because

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Chang, Chao, Liang Ling, Zhaoling Han, Kaiyun Wang, and Wanming Zhai. "High-Speed Train-Track-Bridge Dynamic Interaction considering Wheel-Rail Contact Nonlinearity due to Wheel Hollow Wear." Shock and Vibration 2019 (October 31, 2019): 1–18. http://dx.doi.org/10.1155/2019/5874678.

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Wheel hollow wear is a common form of wheel-surface damage in high-speed trains, which is of great concern and a potential threat to the service performance and safety of the high-speed railway system. At the same time, rail corridors in high-speed railways are extensively straightened through the addition of bridges. However, only few studies paid attention to the influence of wheel-profile wear on the train-track-bridge dynamic interaction. This paper reports a study of the high-speed train-track-bridge dynamic interactions under new and hollow worn wheel profiles. A nonlinear rigid-flexible

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