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Journal articles on the topic 'Cars and track interaction'

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1

Hovorukha, Volodymyr, and Todor Zhelyazov. "Assessment of the stability and loading indicators of two-axle mine cars and rail tracks." E3S Web of Conferences 168 (2020): 00044. http://dx.doi.org/10.1051/e3sconf/202016800044.

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The paper presents the research results of the stability and loading of the two-axle mine cars and rail tracks with various design for calculation schemes construction of transport systems of underground rail haulage. The dependences of changes in loading, stability and operation safety of rolling stocks from the parameters of irregularities, curvature radii of the rail track and the movement speed of rolling stocks at various technical solutions of the transport system, have been studied. The research results of the interaction between the two-axle mine cars and rail track with the gauge of 7
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2

Bhatti, M. H., V. K. Garg, and K. H. Chu. "Dynamic Interaction Between Freight Train and Steel Bridge." Journal of Dynamic Systems, Measurement, and Control 107, no. 1 (1985): 60–66. http://dx.doi.org/10.1115/1.3140708.

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The dynamic responses of a railway steel bridge due to vehicle-track-bridge interaction were investigated for the effects of vertical and lateral track irregularities, approach track quality, vehicle weight and type, and train speed. It was found that (1) greater approach irregularities produce higher impact factors and dynamic forces in bridge members; (2) light weight and empty cars produce higher impact factors but small dynamic forces; and (3) impact factors depend on such parameters as axle spacing, suspension system stiffness, truck center distances, etc.
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3

Brzhezovskiy, A. M., O. A. Krasnobaev, A. V. Spirov, and I. E. Il’in. "On the permissible speeds of empty freight cars mounted on 18-100 model bogies." VNIIZHT Scientific Journal 80, no. 2 (2021): 65–75. http://dx.doi.org/10.21780/2223-9731-2021-80-2-65-75.

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Problem of ensuring motion safety of empty freight cars is most acute in relation to cars on bogies of model 18-100, which is mainly due to operational wear of wheelsets, side frames and bolsters, as well as spring suspension elements. A potential threat to traffic safety arises when a train, composed of mostly empty and lightly loaded cars, moves along track sections that have deviations in the geometry of rail track of III and higher degrees or combinations and sequences of deviations of II degree. The article presents the main results of complex studies: mathematical modeling of the dynamic
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4

Shvets, A. O. "INFLUENCE OF LATERAL DISPLACEMENT OF BOGIES ON THE FREIGHT CAR DYNAMICS." Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport, no. 6(90) (April 8, 2021): 66–81. http://dx.doi.org/10.15802/stp2020/223519.

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Purpose. The work is aimed at determining the influence of the lateral displacement of a freight car bogie, taking into account the value of the movement speed on its main dynamic indicators and interaction indicators of the rolling stock and the track. Methodology. The quantitative assessment of dynamic indicators was obtained by the method of mathematical and computer modeling. The design scheme of the car takes into account the interaction peculiarities of cars as part of the train: the possibility of all modes of body vibration in space, the transmission of longitudinal force from neighbor
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5

Patlasov, О. M., and Y. M. Fedorenko. "Permissible Values of the Dynamic Impact of the Rolling Stock on the Railway Track in the Case of Axle Load Increase." Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport, no. 3(93) (June 15, 2021): 15–23. http://dx.doi.org/10.15802/stp2021/242048.

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Purpose. The study is aimed at determining experimentally the values of the parameters characterizing the dynamic effect of rolling stock on the railway track, substantiating the maximum permissible (limiting) values. Methodology. To investigate the interaction between the track and the rolling stock, the devices to record various physical processes were installed on the experimental sections. The devices were installed in 8 sections along the outer railway line. To establish the actual state of the track, field measurements were carried out in accordance with the Program and research methodol
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6

Mokrii, T. F., I. Yu Malysheva, L. G. Lapina, and N. V. Bezrukavyi. "Passenger car wheel profile for the operation on the Ukrainian and European railways." Technical mechanics 2022, no. 4 (2022): 111–20. http://dx.doi.org/10.15407/itm2022.04.111.

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The relevance of this work stems from the urgent need for the modern development of the Ukrainian railway transport and the acceleration of Ukraine's integration into the European railway transportation. Currently, the most effective way to travel across borders between countries with different track gauges is the use of gauge-changeable wheelsets, a system that can change from one gauge to another when moving through special gauge changing facilities. The use of cars with gauge-changeable wheelsets on the Ukrainian and European railways calls for assuring a good compatibility of the wheel-rai
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7

Potapov, Dmytro, Sergij Panchenko, Yaroslav Leibuk, Yuseph Tuley, and Pavel Plis. "Effect of joint and isolated irregularities of the track on the wear of rails in curves." MATEC Web of Conferences 230 (2018): 01012. http://dx.doi.org/10.1051/matecconf/201823001012.

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The purpose of the work is to identifying causes of intensive lateral wear of rails and other track failures in short radius curves using numerical methods. The study has been conducted for the most common type of rolling stock: four-axle freight cars on TsNII-Ch3 bogies, transportation of which makes 75-90% of freight load of the track sections. Thus, it is the effect of these cars which is the main cause of the above disorders. To solve the problem, effect of the following parameters of the track plan on dynamic processes of interaction of the track and rolling stock was investigated in the
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8

Shvets, A. O. "INTERACTION DYNAMICS OF SOME TYPES OF FREIGHT CARS WITH A RAILWAY TRACK." Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport, no. 5(89) (December 2, 2020): 142–59. http://dx.doi.org/10.15802/stp2020/217649.

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9

Kozachenko, D., B. Gera, I. Taran, R. Korobiova, V. Malashkin, and Yu Hermaniuk. "Improvement of the method of time rationing for assembling car groups on one track." Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, no. 1 (February 29, 2024): 147–53. http://dx.doi.org/10.33271/nvngu/2024-1/147.

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Purpose. To improve the method for standardizing the duration of the shunting operation of assembling cars on one track. This can be achieved as a result of solving the following research problems: development of a method for searching the optimal order of assembling cars on one track; distribution parameters estimation of the random value of the duration of shunting operation of assembling cars on one track based on calculation experiments. Methodology. During the research, the methods of theory of railway operation, dynamic programming and mathematical statistics were used. Findings. Researc
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10

Mokrii, T. F., I. Yu Malysheva, N. V. Bezrukavyi, and I. M. Ladyhin. "Refinement of the rail–wheel contact pair to improve rail–wheel interaction conditions for railway vehicles with an increased axle load." Technical mechanics 2021, no. 4 (2021): 129–36. http://dx.doi.org/10.15407/itm2021.04.129.

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At present, one of the global trends in railway transport development, which becomes clearer and clearer, is increasing the axle load of freight cars, which gives a considerable economic benefit. In this connection, of importance is not only the car design, but also the car capacity utilization factor: the higher this factor, the more economically efficient the car use. Because of this, one of the priority global lines in increasing the volume of fright traffic and the railway operation efficiency is increasing the carrying capacity of freight cars. Preparing the railways for cars with increas
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11

Wardono, Surakanti Wardono, Paulus A. P, and Charles R. Ngangi. "ANALISIS SISTEM JARINGAN TRANSPORTASI DAN MODEL GRAVITASI DI KOTA AMBON." AGRI-SOSIOEKONOMI 11, no. 2 (2015): 52. http://dx.doi.org/10.35791/agrsosek.11.2.2015.8611.

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This study aimed to analyze the maximum capacity of roads in overcoming bottlenecks using the Maximum Network Flow Model and analyze the interaction of the distribution of the movement with the city located around the city of Ambon by using Gravity Model. Data obtained using the method of documentation. Obtained results, the maximum number of cars that can pass through the road network in 1 hour is 68 units. Line 1 is the terminal Mahardika to Kudamati has exceeded the capacity for the first hour there are 104 units of the car were gone and behind 102 cars. While the other track is still low,
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12

О., M. Patlasov, and M. Fedorenko E. "IMPACT OF CARS WITH 25 TF/AXLE LOAD ON THE TRACK CONDITION." Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport, no. 3(81) (June 24, 2019): 87–95. https://doi.org/10.15802/stp2019/171297.

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<strong>Purpose</strong>. The research is aimed at determining changes in the state of the geometrical parameters of the railway track, depending on the passing tonnage in dynamic interaction with the 25 tf/axle load rolling stock.&nbsp;<strong>Methodology</strong>. For data acquisition, the authors carried out a statistical analysis of the indicators of digital measurements of the track condition by KVL-P track-measuring cars. Using the program of calculating the mean-square deviation of the geometric parameters of the track, the deviation of the track parameters within the test sections was
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13

Anisimov, P. S. "DYNAMIC FEATURES OF STANDARD TANK CARS ON CURVED TRACK SECTIONS." World of Transport and Transportation 14, no. 1 (2016): 22–31. http://dx.doi.org/10.30932/1992-3252-2016-14-1-2.

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[For the English abstract and full text of the article please see the attached PDF-File (English version follows Russian version)].ABSTRACT Nature of interaction of wheel sets of four-axle and eight-axle tank cars with rails when driving in curves of railway track is considered, including specifics of longitudinal and transverse elastic ties of wheel sets with bogie’s side frames. The results of dynamic performance studies (coefficient of dynamic addition of vertical forces on sprung weight and transverse frame force) of tank cars in curves with radii of 350 and 650 m are provided. It follows
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14

Zenzinov, B. N., Y. S. Romen, and M. V. Krivolapov. "Updating the criteria for assessing the state of the railway track according to the data of track measuring equipment." RUSSIAN RAILWAY SCIENCE JOURNAL 81, no. 4 (2022): 318–29. http://dx.doi.org/10.21780/2223-9731-2022-81-4-318-329.

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Introduction. One of the consequences of the introduction of the Instructions for Assessing the Condition of the Rail Track (enacted on February 28, 2020 No. 436/r) was an increase in the number of newly detected deviations from the norm of track maintenance and their reassignment as malfunctions. As a result, the number of kilometres with limited train speeds has increased by up to 3 times, which may lead to significant losses in transportation and an increase in the cost of the immediate track maintenance.Materials and methods. Data from a special thoroughfare of a diagnostic complex along t
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15

Romen, Yu S. "Motion stability of railway cars on bogies 18-100." Vestnik of the Railway Research Institute 78, no. 3 (2019): 149–54. http://dx.doi.org/10.21780/2223-9731-2019-78-3-149-154.

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Stability of the rolling stock in a rail track is determined by the nature of the motion of the wheelsets under the influence of processes in the “wheel — rail” system and connections with the bogie and the carriage body. Factors affecting the motion of wheelsets are the irregularities of rail threads and the interaction forces in the “wheel — rail” system, which cause fluctuations in carriage hunting oscillation even in the absence of external disturbances. Parametric excitation of oscillations in the “carriage — track” system is caused by the difference in the radii of the rolling surfaces o
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16

Mokrii, T. F., I. Yu Malysheva, L. G. Lapina, and S. S. Pasichyk. "Wheel¬–rail interaction for a passenger car with the ITM-73ER new wheel profile in curves." Technical mechanics 2023, no. 2 (2023): 84–90. http://dx.doi.org/10.15407/itm2023.02.084.

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Speeding up the integration of Ukraine into the European railway transportation is an important task in the current development of the Ukrainian railway transport. Currently, the most effective way to travel across borders between countries with different track gauges is the use of gauge-changeable wheelsets. Continuous traffic on the Ukrainian (1520 mm gauge) and European (1435 mm gauge) railways calls not only for gauge changing facilities, but also for the compatibility of the wheel-rail contact pair on both railways: R65 rails and a cant of 1/20 in Ukraine and UIC60 rails and a cant of 1/4
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17

A., O. Shvets, and О. Bolotov О. "INFLUENCE OF LOADING FROM THE AXLE OF A GONDOLA CAR ON ITS DYNAMIC INDICATORS AND RAILWAY TRACK." Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport, no. 1(79) (March 1, 2019): 151–66. https://doi.org/10.15802/stp2019/158127.

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<strong>Purpose</strong>. Increasing the maximum loading from the car axle on the rails during transportation of goods and the speed of movement of railway vehicles will enhance the integration processes between the countries. In order to ensure safe and reliable traffic at the railways it is necessary to improve control, quantitative evaluation of the dynamic loading of the rolling stock, which in the process of its operation is a relevant scientific and technical problem. The purpose of this work is to study the influence of the axle loading increase in gondola cars, taking into account the
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18

Provornaya, Daria, and Sergey Glushkov. "Vehicle-bridge interaction system." MATEC Web of Conferences 239 (2018): 05004. http://dx.doi.org/10.1051/matecconf/201823905004.

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One of the problems in high-speed railways is the influence and vibrations of bridges caused by moving trains. This problem significantly differs from the problems of road bridges for the following reasons. Firstly, the loads caused by the moving train on the bridge are repeated in nature, as a consecutively rotating loads (wheel), implying that certain frequencies will be caused on the bridge during the passage of the train. In contrast, the loads implied on the road are random in nature, expressed through wheel loads and the distance between the wheels. Secondly, high-speed trains can move a
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19

Brzhezovskiy, A. M. "Impact on the track from EMU commuter train." Vestnik of the Railway Research Institute 77, no. 4 (2018): 191–99. http://dx.doi.org/10.21780/2223-9731-2018-77-4-191-199.

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The largest part of operating fleet of EMU trains, operated on the railways of the JSC “Russian Railways”, belongs to the category “ЭП” - electric commuter trains for transporting passengers in suburban areas with a length of the turnover section not exceeding 200 km with a speed of up to 120 km/h. The category of “ЭП” electric trains is fully formed by the domestic rolling stock produced since 1993. After putting Safety Norms NB ZhT 03-98 into force in 1998 and subsequently entering Technical Regulations of the Customs Union - TR TS 001/2011 virtually all new or upgraded series of EMU trains
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20

Sidorova, E. A. "Influence study of parameters of the railway track in plan and profile on the indicators of the railway track and rolling stock interaction." Vestnik of the Railway Research Institute 79, no. 3 (2020): 145–53. http://dx.doi.org/10.21780/2223-9731-2020-79-3-145-153.

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Modern level of development of automated systems opens up great opportunities for designers, making it possible to find optimal solutions for the construction of the railway track using digital modeling methods and automated programs. Moreover, the expansion of technical capabilities should be based on a responsible approach to choosing configuration of the railway track, its parameters in plan and profile. The article is devoted to the study of the influence of the parameters of the railway track in plan and profile on the interaction indicators of the track and rolling stock. Author presente
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21

Sidorova, E. A., V. O. Pevzner, and A. I. Chechel’nitskiy. "Indicators of the force interaction of the track and rolling stock when a freight car runs on long irregularities, taking into account the action of longitudinal forces." VNIIZHT Scientific Journal 80, no. 6 (2021): 359–65. http://dx.doi.org/10.21780/2223-9731-2021-80-6-359-365.

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Authors describe formation mechanism of long irregularities of the railway track and the importance of their elimination for the track facilities. Based on the results of freight train operation modeling on long irregularities in the traction mode, an analysis of the processes occurring during the motion of heavy trains along a track with such deviations was carried out, modeling was carried out on the basis of the “Universal Mechanism” software package. Based on the results of the calculation, interaction between the track and the rolling stock in the vertical plane was assessed in terms of t
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22

Bondarenko, Ol'ga. "ASSESSMENT OF THE SAFETY OF PASSENGER CARS IN CASE OF AN EMERGENCY ROLLOVER ON THE RAILROAD TRACKS." Bulletin of Bryansk state technical university 2021, no. 9 (2021): 49–54. http://dx.doi.org/10.30987/1999-8775-2021-9-49-54.

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The purpose of the work is to assess the safety of passenger cars in case of an emergency rollover on the body of railroad tracks. The paper introduces a method for predicting injury of railway transport passengers as a result of swinging over the wagon on the body of railroad tracks. The method of research is mathematical modeling of scenarios of swinging over the wagon on a flat bottom or earth tramp of the railway track. A model of a passenger compartment has been developed, which is supplemented with models of a roomette, hand luggage and an anthropometric dummy. The originality of the wor
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23

Mokrii, T. F., M. B. Sobolevska, H. M. Kovtun, et al. "Ukrainian rolling stock renewal oriented at integration into the European railway networks." Technical mechanics 2024, no. 3 (2024): 110–23. http://dx.doi.org/10.15407/itm2024.03.110.

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The strategic aim of further development of the Ukrainian railways is rolling stock and infrastructure renewal to meet the demands of the Ukrainian economy, including a rapid integration into the European transport service. The paper presents the results of recent studies conducted at the Department of Statistical Dynamics and Multidimensional Mechanical System Dynamics, the Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine, with the aim to solve important problems in the development of the Ukrainian railway transport. The stu
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24

Birje, Mahantesh N., Arun A. Kumbi, and Ashok V. Sutagundar. "Internet of Things." International Journal of Hyperconnectivity and the Internet of Things 1, no. 2 (2017): 45–71. http://dx.doi.org/10.4018/ijhiot.2017070104.

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This article describes how the Internet of Things (IoT) enables interaction and integration of real world things or objects—such as cars, electronic devices, homes, etc.—using various inter-operable communication protocols. This leads to a digital society of billions of devices that can sense, process, share, track, shop, chat and work in cooperative manner. There exist many challenges in the realization of IoT based distributed systems. This article intends to introduce various aspects of IoT such as views/visions, Architecture and protocols of IoT, communication technology, general requireme
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25

A., O. SHVETS, I. ZHELIEZNOV К., S. АKULOV А., M. ZABOLOTNYI О., and V. CHABANIUK YE. "DETERMINATION OF THE ISSUE CONCERNING THE LIFT RESISTANCE FACTOR OF LIGHTWEIGHT CAR." Science and Transport Progress, no. 6(60) (December 25, 2015): 134–48. https://doi.org/10.15802/stp2015/57098.

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<strong>Purpose.&nbsp;</strong>The analytical study of the connection between the longitudinal force, acting on the light-weight car, lateral and vertical forces of interaction in the contact zone &laquo;wheel &ndash; rail&raquo; with the lift resistance factor value is to provide a simple relationships between them.&nbsp;<strong>Methodology.&nbsp;</strong>Research was conducted by the method of mathematical modeling of loading the freight car when driving at different speeds on straight and curved sections of a track.&nbsp;<strong>Findings.&nbsp;</strong>Even in the absence of &laquo;lift&raq
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26

Sidorova, E. A., O. N. Vaganova, and A. Yu Slastenin. "Methods for determining the position of the curve in the plan and the influence of the geometry of the track on the indicators of interaction between the track and the rolling stock." VNIIZHT Scientific Journal 79, no. 6 (2021): 365–72. http://dx.doi.org/10.21780/2223-9731-2020-79-6-365-372.

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The article substantiates the necessity of supplementing the existing estimate of the track position in the plan by the difference of adjacent bending arrows with an estimate of deviations from the fixed initial position, which ensures the constancy of the characteristics of a single-radius curve or the components of a multi-radius curve along their entire length. As a fixed initial position of the reference base (base position), it is proposed to accept the design position or the position of the track after the repair performed according to the project, and in the absence of the project, the
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27

Li, Xiaozhen, Yan Zhu, and Zhibin Jin. "Nonstationary Random Vibration Performance of Train-Bridge Coupling System with Vertical Track Irregularity." Shock and Vibration 2016 (2016): 1–19. http://dx.doi.org/10.1155/2016/1450895.

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In order to study the random vibration performance of trains running on continuous beam bridge with vertical track irregularity, a time-domain framework of random analysis on train-bridge coupling system is established. The vertical rail irregularity is regarded as a random process. A multibody mass-spring-damper model is employed to represent a moving railway car and the bridge system is simulated by finite elements. By introducing the pseudo excitation algorithm into the train-bridge interaction dynamic system, expressions of the mean value, standard deviation, and power spectral density of
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28

Vydashenko, L., and P. Vydashenko. "Problems of Legal Regulation of Interaction Between Public and Non-public Railway Transport." Bulletin of Science and Practice 10, no. 1 (2024): 320–27. http://dx.doi.org/10.33619/2414-2948/98/40.

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In 2023, the main regulatory document — Federal Law no. 18-FZ “Charter of Railway Transport of the Russian Federation” will celebrate its 20th anniversary, which regulates relations between participants in the transportation process, determines the basic conditions for organizing and carrying out the transportation of goods, empty cars, and the provision of railway transport services public use and non-public use. During the period of validity of the UZhT, this basic law was amended by federal laws issued by legislative bodies related to the reform of the railway industry, but changes and amen
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29

Lu, Xuzhao, Chul-Woo Kim, and Kai-Chun Chang. "Finite Element Analysis Framework for Dynamic Vehicle-Bridge Interaction System Based on ABAQUS." International Journal of Structural Stability and Dynamics 20, no. 03 (2020): 2050034. http://dx.doi.org/10.1142/s0219455420500340.

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This paper presents a unified framework for dynamic analysis of vehicle-bridge interaction (VBI) systems using a commercial finite element software suite (ABAQUS[Formula: see text]). This framework can provide bridge designers and engineering practitioners with a general platform to analyze the coupled system with high modeling efficiency and accuracy in modeling and outputting. Moreover, it has readily available nonlinear material/element models and nonlinear dynamic analysis functions for complex structures. This analysis framework was first validated with a classical VBI problem involving a
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30

Shatokhin, A. A. "Virtual Sorting: Improving Organization of Moving and Processing of Empty Car Flows." World of Transport and Transportation 17, no. 4 (2020): 80–89. http://dx.doi.org/10.30932/1992-3252-2019-17-4-80-89.

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The growth in railway cargo carriage, followed by the search for its more efficient implementation results in the need to improve the regulatory framework for interaction of all participants in the transportation process on railways and the technology of organization of moving and processing of car flows on public tracks, reducing existing costs. This explains topicality of reducing shunting operations through flexible arrangement of wagons by destination stations. The objective of the study is to develop the technology of «virtual sorting of empty cars». The work has used methods of system an
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31

Marchenko, D., and K. Matvyeyeva. "Tribological researches of electroerosive processing of steel details of cars." Problems of tribology 99, no. 1 (2021): 66–73. http://dx.doi.org/10.31891/2079-1372-2021-99-1-66-73.

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The article considers the technology of electroerosive treatment of steel friction pairs and presents the results of experimental studies. Analysis of experimental studies has shown that an increase in the anode-cathode voltage leads to a sharp decrease in the microhardness of the surface layer. The study also allowed to determine the characteristic size of the structural elements, the height parameters of the surface roughness. The elemental composition of the initial surface of the sample made of steel 15HGN2TA differs from the composition of the coatings and surface layers of the samples mo
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32

Kholodova, Olha, Olena Levchenko, Maryna Buhaiova, and Anastasiia Botsman. "Optimization of Urban Tram Traffic to Improve the Efficiency of the Street and Road Network." Central Ukrainian Scientific Bulletin. Technical Sciences 1, no. 11(42) (2025): 301–12. https://doi.org/10.32515/2664-262x.2025.11(42).1.301-312.

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Traffic safety depends not only on the number of road accidents but also on the level of conflict between its participants, especially at intersections and at the junction of traffic flows. One of the key but insufficiently studied aspects is the interaction of tram transport with cars, which directly affects the capacity and safety of the road network. The article analyses the impact of various tramway schemes on the dynamics of traffic flows and accidents, considering modern traffic management methods. The study aims to determine the optimal solution that will increase the efficiency of the
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33

Musayev, Janat, Algazy Zhauyt, Sarakul Ismagulova, and Saltanat Yussupova. "Theory and Practice of Determining the Dynamic Performance of Traction Rolling Stock." Applied Sciences 13, no. 22 (2023): 12455. http://dx.doi.org/10.3390/app132212455.

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In the interaction of the rolling stock and the upper structure of the railway track, intense dynamic loads occur. They have a destructive effect both on the parts of the rolling stock and on the elements of the superstructure of the track. In order to develop a durable, rational and reliably functioning design of cars and locomotives with good dynamic properties and good indicators of the impact of rolling stock on the railway track, along with theoretical computational studies, experimental studies are also required, which are usually the final stage in the design and implementation of rolli
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34

Sverdlov, Vadim Borisovich, and Vasiliy Fedorovich Lapshin. "Car fleet safety assurance on non-public railway tracks." Transport of the Urals, no. 4 (2021): 33–39. http://dx.doi.org/10.20291/1815-9400-2021-4-33-39.

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The paper considers problems connected with car fleet safety assurance, it highlights aspects that require a scientific solution. Special attention is paid to assessment of influence of railway transport structural reform on dynamics of damage growth of freight cars. The paper shows that the greatest amount of damage occurs during freight and shunting operation on non-public railway tracks while a technological level of organization and execution of freight operations on industrial enterprises can’t guarantee an exception of car damage risks. On the example of open-box cars unloading with the
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35

Bryja, Danuta, and Adam Popiołek. "Vibrations of the overhead catenary caused by the passage of a high-speed train through the track stiffness discontinuity." Transportation Overview - Przeglad Komunikacyjny 2018, no. 6 (2018): 21–31. http://dx.doi.org/10.35117/a_eng_18_06_03.

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The paper presents the methodology for simulating vibrations of the railway catenary, caused by the passage of the train through the track stiffness discontinuity. The concept of the simulation algorithm takes into account the dynamic interaction between pantographs and the overhead contact wire as well as nonlinearity resulting from the specificity of the droppers behaviour, which do not carry compression - they only carry tensile forces. The coupling of track and rail vehicles vibrations is also included. According to physics, the effect of vibrations of the catenary carried by pantographs o
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36

Mokrii, T. F., L. G. Lapina, and S. S. Pasichnyk. "Estimation of the efficiency of using wheels with a new profile in freight cars in the operation on the Ukrainian and European railways." Technical mechanics 2024, no. 4 (2024): 89. https://doi.org/10.15407/itm2024.04.089.

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To organize railway communication between Ukraine and West-European counties, which have different gauge standards, the most effective way is to use gauge-changeable wheelsets, a system that can change from one gauge to another when moving through special gauge changing facilities. The use of cars with gauge-changeable wheelsets on the Ukrainian and European railways (a gauge of 1,520 mm and 1,435 mm, respectively) calls for assuring a required compatibility of the wheel-rail pair on tracks of both gauges with account for different rail head profiles, R65 in Ukraine and UIC in Europe, and diff
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O., V. Shatunov, O. Shvets A., A. Kirilchuk O., and O. Shvets A. "RESEARCH OF WHEEL-RAIL WEAR DUE TO NON-SYMMETRICAL LOADING OF A FLAT CAR." Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport, no. 4(82) (September 5, 2019): 102–17. https://doi.org/10.15802/stp2019/177457.

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<strong>Purpose</strong>. The paper is aimed at determining the influence of non-symmetrical loading of a flat car on the magnitude of the wear factor of a wheel-rail pair when changing the operation parameters that occur in operation.&nbsp;<strong>Methodology</strong><strong>.</strong>&nbsp;The dynamic loading of the flat car, model 13-401 with typical three-piece bogies is studied using a model of spatial oscillations of a five-car coupling with the help of mathematical and computer simulation. Theoretical calculations are performed for the most dangerous sections of the railway track &ndash
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Romen, Yu S., B. E. Glyuzberg, E. A. Timakova, and V. A. Bykov. "Features of mathematical modeling of dynamic processes of car passing railroad turnouts." Vestnik of the Railway Research Institute 79, no. 3 (2020): 119–26. http://dx.doi.org/10.21780/2223-9731-2020-79-3-119-126.

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Dimensions and tolerances in the “wheelset — railway track” system are interconnected, since the normative values of geometric parameters and shape of the elements of the wheelsets and the track's upper structure are directly de pendent. In 2018– 2019 in order to establish the minimum permissible thickness of wheel flanges for freight cars in operation and to determine the influence of the thickness and shape of wheel flanges on the safe passage of turnout elements, JSC “VNIIZhT” conducted comprehensive stu dies, including the development of a methodo logy and mathematical modeling of the inte
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39

Ushkalov, V. F., T. F. Mokriy, I. Yu Malysheva, and N. V. Bezrukavyi. "Effects of variations in form of wheel profiles in operation on dynamic qualities of freight cars and indices of their interaction with railway track." Technical mechanics 2017, no. 1 (2017): 65–71. http://dx.doi.org/10.15407/itm2017.01.065.

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40

Suslov, O. A., N. V. Ressina, A. V. Portnov, A. A. Novikov, and V. A. Mariychuk. "Determination of loading modes for endurance tests of reinforced concrete sleepers on the basis of experimental measurement of their stress state under the conditions of the Test Loop at Shcherbinka." VNIIZHT Scientific Journal 80, no. 3 (2021): 127–35. http://dx.doi.org/10.21780/2223-9731-2021-80-3-127-135.

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The article considers the issue of changing the stressstrain state of reinforced concrete sleepers depending on the value of the axle loads and the requirements for the modes of its bench endurance tests. This issue is very relevant, since at present, in certain sections of the network (directions of the Eastern operational area), due to the high traffic density, the impact on the track increases and the axle load increases. Such a change entails the need to revise the requirements for the methods for determining and confirming the resource of all track elements, including the loading modes of
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41

Zhou, Jianan, Laurence Rilett, and Elizabeth Jones. "Sensitivity Analysis of Speed Limit, Truck Lane Restrictions, and Data Aggregation Level on the HCM-6 Passenger Car Equivalent Estimation Methodology for Western U.S. Conditions." Transportation Research Record: Journal of the Transportation Research Board 2673, no. 11 (2019): 493–504. http://dx.doi.org/10.1177/0361198119851451.

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In the 2016 Highway Capacity Manual (HCM-6), the impact of trucks on freeway operations is measured by passenger car equivalents (PCEs). PCEs are estimated by the equal capacity methodology. The HCM-6 PCE values are based on the assumptions that passenger cars and trucks travel at the same free-flow speed, that they travel on freeways with three lanes per direction, and that they travel in traffic with no more than 25% trucks. On Interstate 80 in western Nebraska, it is observed that the interaction of high truck percentages and large speed differences between passenger cars and trucks may res
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42

Lotz, Alexander, Nele Russwinkel, and Enrico Wohlfarth. "Take-over expectation and criticality in Level 3 automated driving: a test track study on take-over behavior in semi-trucks." Cognition, Technology & Work 22, no. 4 (2020): 733–44. http://dx.doi.org/10.1007/s10111-020-00626-z.

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Abstract With the introduction of advanced driving assistance systems managing longitudinal and lateral control, conditional automated driving is seemingly in near future of series vehicles. While take-over behavior in the passenger car context has been investigated intensively in recent years, publications on semi-trucks with professional drivers are sparse. The effects influencing expert drivers during take-overs in this context lack thorough investigation and are required to design systems that facilitate safe take-overs. While multiple findings seem to cohere in passenger cars and semi-tru
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43

Duncan, Chandler S., Asad J. Khattak, and Forrest M. Council. "Applying the Ordered Probit Model to Injury Severity in Truck-Passenger Car Rear-End Collisions." Transportation Research Record: Journal of the Transportation Research Board 1635, no. 1 (1998): 63–71. http://dx.doi.org/10.3141/1635-09.

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Collisions between heavy trucks and passenger cars are a major concern because of the severity of injuries. This research has two objectives. One is to examine the impact of various factors on injuries to passenger car occupants involved in such collisions. Due to the complex interaction of factors influencing injury levels in truck-car collisions, the ordered probit model is used to identify specific variables significantly influencing levels of injury in two-vehicle rear-end involvements on divided roadways. Another objective is to demonstrate the use of the ordered probit in this complex hi
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44

S., Myamlin, Neduzha L., Ten O., and Shvets A. "Determination of dynamic performance of freight cars taking into account technical condition of side bearers." Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport, no. 1(43) (April 6, 2013): 162–69. https://doi.org/10.15802/stp2013/9589.

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<strong>Purpose.&nbsp;</strong>&nbsp;The railway transport plays an important role in social and economic life of the country and carries out the large containment of transportation activities. The transport industry should migrate towards innovation changes and increase its significance as an important transit subsystem on the way of renovation of both the infrastructure and the strategy of all transportation process components including the interaction with other transport modes. At present the life sets strategic challenges for the railway branch, and the basic goals among them are as follo
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Kumar, Jyoti, Mannu Brahmi, Ahana Viegas Raman, Greeshma Sharma, and Abhijeet Kujur. "Navigating Cognitive Workload: Multimodal Evaluation of Infotainment Accessibility in Indian Drivers." International Journal of Research and Innovation in Applied Science IX, no. XI (2024): 560–74. https://doi.org/10.51584/ijrias.2024.911042.

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The integration of advanced in-car infotainment systems raises essential concerns regarding their influence on the driver’s performance, particularly the cognitive aspects. To address this, our study assessed the cognitive workload (CWL) associated with various infotainment systems using neurophysiological tools such as electroencephalograms (EEG), eye tracking (ET), and galvanic skin resistance (GSR) across three task modes (touch, voice, hybrid), two contexts (driving and static), two infotainment system designs (different cars), and four user tasks (Radio Station, Temperature Change, Callin
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Narayana, Pradyumna, J. Ross Beveridge, and Bruce A. Draper. "Interacting Hidden Markov Models for Video Understanding." International Journal of Pattern Recognition and Artificial Intelligence 32, no. 11 (2018): 1855020. http://dx.doi.org/10.1142/s0218001418550200.

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People, cars and other moving objects in videos generate time series data that can be labeled in many ways. For example, classifiers can label motion tracks according to the object type, the action being performed, or the trajectory of the motion. These labels can be generated for every frame as long as the object stays in view, so object tracks can be modeled as Markov processes with multiple noisy observation streams. A challenge in video recognition is to recover the true state of the track (i.e. its class, action and trajectory) using Markov models without (a) counter-factually assuming th
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47

de Groot, S., M. Mulder, and P. A. Wieringa. "Car Racing in a Simulator: Validation and Assessment of Brake Pedal Stiffness." Presence: Teleoperators and Virtual Environments 20, no. 1 (2011): 47–61. http://dx.doi.org/10.1162/pres_a_00033.

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Car racing is a mentally and physically demanding sport. The track time available to train drivers and test car setups is limited. Race car simulators offer the possibility of safe, efficient, and standardized human-in-the-loop training and testing. We conducted a validation study of a race car simulator by correlating the fastest lap times of 13 drivers during training events in the simulator with their fastest lap times during real-world race events. The results showed that the overall correlation was .57 (p = .044). Next, the effect of brake pedal stiffness (soft: 5.8 N/mm vs. hard: 53.0 N/
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48

Poole, Joshua J. A., and Leila B. Mostaço-Guidolin. "Optical Microscopy and the Extracellular Matrix Structure: A Review." Cells 10, no. 7 (2021): 1760. http://dx.doi.org/10.3390/cells10071760.

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Biological tissues are not uniquely composed of cells. A substantial part of their volume is extracellular space, which is primarily filled by an intricate network of macromolecules constituting the extracellular matrix (ECM). The ECM serves as the scaffolding for tissues and organs throughout the body, playing an essential role in their structural and functional integrity. Understanding the intimate interaction between the cells and their structural microenvironment is central to our understanding of the factors driving the formation of normal versus remodelled tissue, including the processes
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Oleksij, Fomin, Lovska Alyona, Kovtun Oleksandr, and Nerubatskyi Volodymyr. "DEFINING PATTERNS IN THE LONGITUDINAL LOAD ON A TRAIN EQUIPPED WITH THE NEW CONCEPTUAL COUPLERS." Eastern-European Journal of Enterprise Technologies 2, no. 7 (104) (2020): 33–40. https://doi.org/10.15587/1729-4061.2020.198660.

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The longitudinal-dynamic load on a railroad train has been studied at its steady motion along the track of a homogeneous profile. A value of the longitudinal loading that a train is exposed to has been established. The calculations were carried out for a train consisting of 40&nbsp;similar semi-wagons. The magnitude of the longitudinal loading, in this case, is taken to equal 1.2&nbsp;MN. It is important to note that when increasing the motion speed, as well as the weight of a train, the magnitude of the longitudinal load may exceed the specified value. This contributes to the additional loadi
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Yanovsky, Petro, Victoriia Yanovska, Sergiy Lytvynenko, Halyna Nesterenko, and Larysa Lytvynenko. "Principles of the Feedback Action in Local Elements of Rail Yard Interaction." International Journal of Engineering & Technology 7, no. 4.3 (2018): 196. http://dx.doi.org/10.14419/ijet.v7i4.3.19734.

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Achievement of high-quality servicing level of cargo owners should be carried out under unconditionally effective use of rolling stock of railways and technical means. The real transport process should be implemented based on logistic cargo supply chains by types of connections for each shipment. The practice of railway operation shows that there is a significant shortage of train locomotives as a result of which the departure of ready trains at rail yard is often not carried out. In such cases, a feedback effect in local elements of interaction of these stations occurs. Due to delay in depart
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