Integration of Traction Electricity Consumption Determinants with Route Geometry and Vehicle Characteristics DOI Creative Commons
A. Kampczyk, Wojciech Gamon, Katarzyna Gawlak

et al.

Energies, Journal Year: 2023, Volume and Issue: 16(6), P. 2689 - 2689

Published: March 13, 2023

Traction electricity (TE) consumption in rail transportation (rail transport) is determined by factors (determinant) related to the characteristics of railway lines and vehicles. They have an impact on driving speeds, which, turn, affect energy consumption. The scientific research presented here combined results expert, direct indirect measurement methods, including brainstorming, mind mapping, system approach, heuristics, failure mode effect analysis. main objective was demonstrate influence determinants TE consumption, depending route (road) geometry traction electric vehicles whole trains (catenary-supplied vehicles, non-autonomous network especially locomotives multiple units, multiple-units (EMUs)). Using a new equation, we applied values for movement resistances during braking jointed track Mres JRT continuous welded tracks CWRt braking. startup were also applied. showed strong correlation with existing speeds catenary-supplied implementation innovative approach important contribution development engineering technical sciences, particular, disciplines civil engineering, surveying/geodesy, transport.

Language: Английский

Effect of Exothermic Additions in Core Filler on Arc Stability and Microstructure during Self-Shielded, Flux-Cored Arc Welding DOI Creative Commons
Vasyl Lozynskyi, Bohdan Trembach, Egidijus Katinas

et al.

Crystals, Journal Year: 2024, Volume and Issue: 14(4), P. 335 - 335

Published: March 31, 2024

In the conditions of an energy crisis, important issue is increase in efficiency and productivity welding hardfacing processes. The article substantiates perspective using exothermic additives introduced into core filler for flux-cored wire arc processes as a relatively cheap additional heat source, reducing consumption when melting materials, increasing deposition rate. mixture design (MD) was selected method to optimize average values current voltage, well stability parameters depending on composition. This studies influence introduction addition (EA), ratios CuO/C CuO/Al FCAW S process. Parameters characterizing were determined oscillograph, from obtained oscillograms, analysis conducted voltage signals during welding. It that various methods can be used evaluate stability, which divided two groups: graphical (current cyclograms, box plots with frequency histograms, ellipse plotted current, cyclograms) statistical (standard variation coefficients voltage). this paper, comprehensive evaluation composition cored carried out. most stable observed electrode content at level EA = 26.5–28.58 wt.% high carbon (low 3.75). Conversely, lowest (CV(U) Std(U)) ratio ≥ 4.5 below < 29 wt.%. Mathematical models mean values, standard deviation, coefficient developed. results indicated response surface prediction had good accuracy ability. developed mathematical showed oxidizing agent (CuO/Al) greatest characteristics under investigation. percentage (EA) only affected (Iaw) (Uaw). graphite expressed through significant impact (CV(U)). Two optimization: deviation (Std(U)). best CuO-Al 3.6–3.9, 3.5–4.26, 29–38 also explained by their elemental (copper, cupric oxide (CuO), Al2O3). more complete reaction, higher amount easily vaporized copper (Cu) plasma, enhancing stability. microstructure deposited metal Fe-Cr-Cu-Ti alloy system investigated.

Language: Английский

Citations

9
Innovative Trends in Railway Condition Monitoring DOI Open Access
I. O. Bondarenko, Vaidas Lukoševičius, Robertas Keršys

et al.

Transportation research procedia, Journal Year: 2024, Volume and Issue: 77, P. 10 - 17

Published: Jan. 1, 2024

Provision of functional safety a railway track requires complementing the existing system assessment condition with stress-strain behaviour rail substructure, i.e. effect structure elasticity on change its geometric parameters during rolling stock passage over time. There is lack available theoretical and practical information about any pivotal changes in this field science. The subject study in-situ indicators monitoring or similar obtained by numerical processing data provided measuring systems recording car enabling determination irregularity time taking into account tonnage passed. outcome investigation proposed approach to development an unparalleled diagnostic loading which has been missing part "puzzle" integrated technical track.

Language: Английский

Citations

5
An Estimation of the Energy Savings of a Mainline Diesel Locomotive Equipped with an Energy Storage Device DOI Creative Commons
Ievgen Riabov, Sergey Goolak, Larysa Neduzha

et al.

Vehicles, Journal Year: 2024, Volume and Issue: 6(2), P. 611 - 631

Published: March 29, 2024

The method of improving a two-section mainline diesel locomotive by using energy storage in the traction system is considered. A mathematical model was developed to study movement based on recommendations and provisions theory traction. For this purpose, as part train along given section track studied. It determined that use an device will allow up 64% spent accumulate. accumulator during electrodynamic braking ensured reduction fuel consumption about 50%, regardless options for equipping with accumulator. established device, indicators characterizing degree engine do not change. These research results can be used works devoted improvement control exchange between engines locomotives.

Language: Английский

Citations

5
Investigation of Dynamic Processes of Rolling Stock–Track Interaction: Experimental Realization DOI Open Access
I. O. Bondarenko, Vaidas Lukoševičius, Robertas Keršys

et al.

Sustainability, Journal Year: 2023, Volume and Issue: 15(6), P. 5356 - 5356

Published: March 17, 2023

The dynamic process of the railway track–rolling stock interaction is characterized by time-dependent dynamics that are determined both varying characteristics objects and climatic conditions. This study investigated effect different groups influence on process, with a view towards reduction cases randomness during registration in experiments an expansion understanding processes happening assessment registered data. static nature rolling has been demonstrated to be not uniform scattering values under variation vertical horizontal forces due stock. position truck relative track axis movement shown enhance non-uniformity. results longitudinal force measurements three-point Schlumpf methods have suggested it necessary investigate rail warping action wheels. To output experiments, proposed consider only stiffness basis oscillatory imitate physical oscillation system elements means amplitude, but also time response using assessing triggering rather than frequencies processes.

Language: Английский

Citations

11
Equipping suburban diesel–electric multiple unit with a hybrid power unit DOI Creative Commons
Ievgen Riabov, Liliia Overianova, Dmytro Iakunin

et al.

e-Prime - Advances in Electrical Engineering Electronics and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 100949 - 100949

Published: Feb. 1, 2025

Language: Английский

Citations

0
Using Detailing Concept to Assess Railway Functional Safety DOI Open Access
I. O. Bondarenko, Tiziana Campisi, Giovanni Tesoriere

et al.

Sustainability, Journal Year: 2022, Volume and Issue: 15(1), P. 18 - 18

Published: Dec. 20, 2022

The ability to assess the risks of functional safety railway tracks allows harmonizing characteristics track elements under certain operating conditions maintenance for efficient use structure throughout its life cycle. concept detailing interaction rolling stock and was used productive solution tasks infrastructure assessment. paper formed an approach analytical determination problems deformability parameters over time using elastic waves theory. formation method interconnections between technical economic aspects operation proposed. criteria work intensity were utilized effective through results calculations are presented changes in behaviour when force speed change, as well algorithm estimating track. Thus, proposed can be adapted optimize objects by assessment at stage object simulation.

Language: Английский

Citations

9
Research on and Assessment of the Reliability of Railway Transport Systems with Induction Motors DOI Creative Commons
Oleg Gubarevych, Stanisław Duer, Inna Melkonova

et al.

Energies, Journal Year: 2023, Volume and Issue: 16(19), P. 6888 - 6888

Published: Sept. 29, 2023

Increasing the efficiency and reliability of modern railway transport is accompanied by an increase in monitoring diagnostic systems for current state electric drives. Modern contains a large number induction motors to ensure operation drives various mechanisms. In article, based on operational statistics engine failures proposed scheme diagnosing them, studies were carried out model was developed assessing system equipped with on-board state. When building models, Markov method used, including construction graphs five most relevant states motor during operation. The results obtained are evaluating effectiveness using built-in scheduling routine maintenance, which will affect transport. Based process diagnosis motors, operating object studied interpreted: full operation, “S0”; incomplete serviceability, “S1”; critical “S2”; pre-damage condition, “S3”; unserviceability (defect), “S4”. Subsequently, five-state developed. This also described equations state: Kolmogorov–Chapman equations. quantities determined form basis simulation studies. effect study functions probabilities occurrences motors; important part examined estimate times future.

Language: Английский

Citations

5
Novel ‘Closed’-System Approach for Monitoring the Technical Condition of Railway Tracks DOI Open Access
I. O. Bondarenko, Vaidas Lukoševičius, Larysa Neduzha

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(8), P. 3180 - 3180

Published: April 10, 2024

Assessing the technical condition of a railway track throughout its service life is crucial to ensuring functional safety. However, it important note that current approaches have theoretical and practical gaps require attention. The purpose this study discuss reconceptualization an integrated approach assess changes in tracks caused by rolling stock over their life. Improving existing systems for assessing can be achieved modifying model concept and, subsequently, measurement assessment procedures. This paper presents alternative method addressing issues related monitoring diagnosis tracks, with particular focus on natural phenomena: energy transfer elastic waves. primary aim work propose designing ‘closed’ system enables tracking cause-and-effect relationship. takes into account both dissipative characteristics track–rolling interaction influence dynamics various components ‘train-track’ system.

Language: Английский

Citations

1
Development Genesis of Functional Safety on the Example of an Element of the Railways Infrastructure Subsystem DOI
I. O. Bondarenko, Larysa Neduzha

Lecture notes in intelligent transportation and infrastructure, Journal Year: 2024, Volume and Issue: unknown, P. 529 - 538

Published: Jan. 1, 2024

Language: Английский

Citations

0
Increasing the Fuel Efficiency of a Mainline Diesel Locomotive with Separate Section Loading DOI Creative Commons
Ievgen Riabov,

B. Kh. Yeritsian,

I. M. Kolodii

et al.

Science and Transport Progress, Journal Year: 2024, Volume and Issue: 2(106), P. 64 - 79

Published: June 20, 2024

Purpose. The paper aims to investigate the increase of fuel efficiency a mainline freight locomotive in case separate loading diesel generators its individual sections. Methodology. study was carried out for non-electrified section between Kharkiv-Sorting and Sumy stations during movement train with 45 loaded empty cars both directions. two-section 2TE116 taken. To determine parameters movement, mathematical model developed, which used solve series traction problems. problems are calculated cases A method sections is proposed modeling characteristics constructed accordance this method. Findings. It has been established that use when running reduces consumption by 18.7...19.6 % compared serial locomotive. For cars, reduction 8.1...10.3 found can be one In case, 29.5...31.0 %. all studied cases, duration practically same. Originality. authors have solved real track moving, where used. forming proposed. Practical value. developed models including sections, modernization locomotives or creation rolling stock using multi-diesel power plant.

Language: Английский

Citations

0