Međedović, Nebojša

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  • Međedović, Nebojša (4)
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Author's Bibliography

Review of failure analysis of coupling systems on trains

Vukšić Popović, Marija; Tanasković, Jovan; Međedović, Nebojša

(ELSEVIER, 2023)

TY  - CONF
AU  - Vukšić Popović, Marija
AU  - Tanasković, Jovan
AU  - Međedović, Nebojša
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7257
AB  - This paper provides a comprehensive examination of the failure analysis of screw couplings and draw gears in trains across Europe
and other countries where screw coupling systems are still used. The analysis of these failures reveals distinct characteristics, allowing
for the categorization of these failures into recurring patterns observed on other railways. The presence of various failure types indicates
that multiple factors contribute to the occurrence of coupling system breaks, and these factors are not uniformly distributed. Many
studies on failure analysis focus on investigating the fatigue of screw coupling and drawing gear components through a combination of
experimental tests and numerical analyses employing the finite element method. Apart from initial cracks and corrosion, some fractured
elements do not exhibit signs of fatigue, necessitating consideration of other potential causes in the analysis. These causes may include
overload, impact, inadequate material, or deficiencies in the heat treatment of fractured elements.
PB  - ELSEVIER
C3  - PROCEDIA STRUCTURAL INTEGRITY
T1  - Review of failure analysis of coupling systems on trains
EP  - 259
SP  - 252
VL  - 48
DO  - 10.1016/j.prostr.2023.07.135
ER  - 
@conference{
author = "Vukšić Popović, Marija and Tanasković, Jovan and Međedović, Nebojša",
year = "2023",
abstract = "This paper provides a comprehensive examination of the failure analysis of screw couplings and draw gears in trains across Europe
and other countries where screw coupling systems are still used. The analysis of these failures reveals distinct characteristics, allowing
for the categorization of these failures into recurring patterns observed on other railways. The presence of various failure types indicates
that multiple factors contribute to the occurrence of coupling system breaks, and these factors are not uniformly distributed. Many
studies on failure analysis focus on investigating the fatigue of screw coupling and drawing gear components through a combination of
experimental tests and numerical analyses employing the finite element method. Apart from initial cracks and corrosion, some fractured
elements do not exhibit signs of fatigue, necessitating consideration of other potential causes in the analysis. These causes may include
overload, impact, inadequate material, or deficiencies in the heat treatment of fractured elements.",
publisher = "ELSEVIER",
journal = "PROCEDIA STRUCTURAL INTEGRITY",
title = "Review of failure analysis of coupling systems on trains",
pages = "259-252",
volume = "48",
doi = "10.1016/j.prostr.2023.07.135"
}
Vukšić Popović, M., Tanasković, J.,& Međedović, N.. (2023). Review of failure analysis of coupling systems on trains. in PROCEDIA STRUCTURAL INTEGRITY
ELSEVIER., 48, 252-259.
https://doi.org/10.1016/j.prostr.2023.07.135
Vukšić Popović M, Tanasković J, Međedović N. Review of failure analysis of coupling systems on trains. in PROCEDIA STRUCTURAL INTEGRITY. 2023;48:252-259.
doi:10.1016/j.prostr.2023.07.135 .
Vukšić Popović, Marija, Tanasković, Jovan, Međedović, Nebojša, "Review of failure analysis of coupling systems on trains" in PROCEDIA STRUCTURAL INTEGRITY, 48 (2023):252-259,
https://doi.org/10.1016/j.prostr.2023.07.135 . .

Analysis of coupling system failures on freight trains

Vukšić Popović, Marija; Tanasković, Jovan; Starčević, Zorica; Međedović, Nebojša

(Széchenyi István University, Győr, Hungary, 2023)

TY  - JOUR
AU  - Vukšić Popović, Marija
AU  - Tanasković, Jovan
AU  - Starčević, Zorica
AU  - Međedović, Nebojša
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7295
AB  - This paper presents an analysis of train coupling failure that led to trains break apart on the Serbian
Railways over 10 years period. Train coupling failure of freight trains with single locomotives was
considered. The analysis was done based on accident data combine with FMECA risk assessment. As
a result distribution of failure along the train, driving regime and velocity were obtained, as well as
the frequency of failure concerning the length and mass of the trains, load status, etc. The
systematization of coupling failure helped to establish conditions leading to failure and to define the
parameters causing it. Risk factors for coupling failure were determined using FMECA risk
assessment. Preventive measures are recommended for the revision of maintenance. Risk analysis of
coupling system failure can be different depending on the time of analysis (regulations, exploitation
conditions) and the applied maintenance practice. FMECA analysis applied to train coupling systems
based on regulation shows different permissible risk values that don't match exploitation data.
PB  - Széchenyi István University, Győr, Hungary
T2  - ACTA TECHNICA JAURINENSIS
T1  - Analysis of coupling system failures on freight trains
EP  - 17
IS  - 1
SP  - 11
VL  - 16
DO  - 10.14513/actatechjaur.00687
ER  - 
@article{
author = "Vukšić Popović, Marija and Tanasković, Jovan and Starčević, Zorica and Međedović, Nebojša",
year = "2023",
abstract = "This paper presents an analysis of train coupling failure that led to trains break apart on the Serbian
Railways over 10 years period. Train coupling failure of freight trains with single locomotives was
considered. The analysis was done based on accident data combine with FMECA risk assessment. As
a result distribution of failure along the train, driving regime and velocity were obtained, as well as
the frequency of failure concerning the length and mass of the trains, load status, etc. The
systematization of coupling failure helped to establish conditions leading to failure and to define the
parameters causing it. Risk factors for coupling failure were determined using FMECA risk
assessment. Preventive measures are recommended for the revision of maintenance. Risk analysis of
coupling system failure can be different depending on the time of analysis (regulations, exploitation
conditions) and the applied maintenance practice. FMECA analysis applied to train coupling systems
based on regulation shows different permissible risk values that don't match exploitation data.",
publisher = "Széchenyi István University, Győr, Hungary",
journal = "ACTA TECHNICA JAURINENSIS",
title = "Analysis of coupling system failures on freight trains",
pages = "17-11",
number = "1",
volume = "16",
doi = "10.14513/actatechjaur.00687"
}
Vukšić Popović, M., Tanasković, J., Starčević, Z.,& Međedović, N.. (2023). Analysis of coupling system failures on freight trains. in ACTA TECHNICA JAURINENSIS
Széchenyi István University, Győr, Hungary., 16(1), 11-17.
https://doi.org/10.14513/actatechjaur.00687
Vukšić Popović M, Tanasković J, Starčević Z, Međedović N. Analysis of coupling system failures on freight trains. in ACTA TECHNICA JAURINENSIS. 2023;16(1):11-17.
doi:10.14513/actatechjaur.00687 .
Vukšić Popović, Marija, Tanasković, Jovan, Starčević, Zorica, Međedović, Nebojša, "Analysis of coupling system failures on freight trains" in ACTA TECHNICA JAURINENSIS, 16, no. 1 (2023):11-17,
https://doi.org/10.14513/actatechjaur.00687 . .
1

Review of failure analysis of coupling systems on freight trains

Vukšić Popović, Marija; Tanasković, Jovan; Međedović, Nebojša

(Faculty of Mechanical Engineering, University of Belgrade, Serbia, 2023)

TY  - CONF
AU  - Vukšić Popović, Marija
AU  - Tanasković, Jovan
AU  - Međedović, Nebojša
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7270
AB  - This paper presents a review of screw coupling and draw gear failure analysis on freight trains in Europe
and other countries where screw coupling systems are still in use. Analyses of failures show different
characteristics and applications of root cause analyses and can group them into several categories that repeat
on considered railways. A variety of failure types indicates that more than one factor causes breaks in the
coupling system, and they didn't always equally present. Most studies of failure investigate fatigue of screw
coupling and draw gear elements because of initial crack or corrosion. Some fractured elements haven’t had
signs of fatigue so other causes must be considered in the analysis, like overload, impact, inadequate material,
or certain deficiencies in heat treatments of fractured elements. Investigations were performed via a series of
experimental tests and numerical analyses using the finite element method.
PB  - Faculty of Mechanical Engineering, University of Belgrade, Serbia
C3  - 2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023)
T1  - Review of failure analysis of coupling systems on freight trains
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7270
ER  - 
@conference{
author = "Vukšić Popović, Marija and Tanasković, Jovan and Međedović, Nebojša",
year = "2023",
abstract = "This paper presents a review of screw coupling and draw gear failure analysis on freight trains in Europe
and other countries where screw coupling systems are still in use. Analyses of failures show different
characteristics and applications of root cause analyses and can group them into several categories that repeat
on considered railways. A variety of failure types indicates that more than one factor causes breaks in the
coupling system, and they didn't always equally present. Most studies of failure investigate fatigue of screw
coupling and draw gear elements because of initial crack or corrosion. Some fractured elements haven’t had
signs of fatigue so other causes must be considered in the analysis, like overload, impact, inadequate material,
or certain deficiencies in heat treatments of fractured elements. Investigations were performed via a series of
experimental tests and numerical analyses using the finite element method.",
publisher = "Faculty of Mechanical Engineering, University of Belgrade, Serbia",
journal = "2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023)",
title = "Review of failure analysis of coupling systems on freight trains",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7270"
}
Vukšić Popović, M., Tanasković, J.,& Međedović, N.. (2023). Review of failure analysis of coupling systems on freight trains. in 2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023)
Faculty of Mechanical Engineering, University of Belgrade, Serbia..
https://hdl.handle.net/21.15107/rcub_machinery_7270
Vukšić Popović M, Tanasković J, Međedović N. Review of failure analysis of coupling systems on freight trains. in 2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023). 2023;.
https://hdl.handle.net/21.15107/rcub_machinery_7270 .
Vukšić Popović, Marija, Tanasković, Jovan, Međedović, Nebojša, "Review of failure analysis of coupling systems on freight trains" in 2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023) (2023),
https://hdl.handle.net/21.15107/rcub_machinery_7270 .

The trend of train coupling failure on Serbian railways in 10 year period

Vukšić Popović, Marija; Tanasković, Jovan; Starčević, Zorica; Međedović, Nebojša

(Faculty of Mechanical Engineering Niš, 2022)

TY  - CONF
AU  - Vukšić Popović, Marija
AU  - Tanasković, Jovan
AU  - Starčević, Zorica
AU  - Međedović, Nebojša
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5713
AB  - This paper presents an analysis of train coupling failure on the Serbian Railways and
displays a trend of characteristics over 10 year period. The impact of changes in the organization
of exploitation and maintenance and led by the introduction of Entity in Charge of Maintenance
(ECM) and reconstruction of Serbian railway company into 3 separate entities as well as some
differences and aging in rolling stock induce certain changes in the parameters of train coupling
failure. The analysis is done based on parameters of train configuration and driving specifications.
Only freight trains with single traction locomotives are considered. The distribution of coupling
failure along the train, driving regime and velocity is comparatively discussed related to the values
from the previous period. Load status, as well as the length and mass of the trains in the extended
collection, correspond to a certain distribution. Causes of failure and damages to coupling and
draw gear indicate specific conditions leading to failure. Analysis significance helps the
systematization of failure features and sets the ground for defining the parameters that impact
failure and determining their quantification.
PB  - Faculty of Mechanical Engineering Niš
C3  - XX Scientific-Expert Conference on Railways - RAILCON '22, Proceedings
T1  - The trend of train coupling failure on Serbian railways in 10 year period
EP  - 112
SP  - 109
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5713
ER  - 
@conference{
author = "Vukšić Popović, Marija and Tanasković, Jovan and Starčević, Zorica and Međedović, Nebojša",
year = "2022",
abstract = "This paper presents an analysis of train coupling failure on the Serbian Railways and
displays a trend of characteristics over 10 year period. The impact of changes in the organization
of exploitation and maintenance and led by the introduction of Entity in Charge of Maintenance
(ECM) and reconstruction of Serbian railway company into 3 separate entities as well as some
differences and aging in rolling stock induce certain changes in the parameters of train coupling
failure. The analysis is done based on parameters of train configuration and driving specifications.
Only freight trains with single traction locomotives are considered. The distribution of coupling
failure along the train, driving regime and velocity is comparatively discussed related to the values
from the previous period. Load status, as well as the length and mass of the trains in the extended
collection, correspond to a certain distribution. Causes of failure and damages to coupling and
draw gear indicate specific conditions leading to failure. Analysis significance helps the
systematization of failure features and sets the ground for defining the parameters that impact
failure and determining their quantification.",
publisher = "Faculty of Mechanical Engineering Niš",
journal = "XX Scientific-Expert Conference on Railways - RAILCON '22, Proceedings",
title = "The trend of train coupling failure on Serbian railways in 10 year period",
pages = "112-109",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5713"
}
Vukšić Popović, M., Tanasković, J., Starčević, Z.,& Međedović, N.. (2022). The trend of train coupling failure on Serbian railways in 10 year period. in XX Scientific-Expert Conference on Railways - RAILCON '22, Proceedings
Faculty of Mechanical Engineering Niš., 109-112.
https://hdl.handle.net/21.15107/rcub_machinery_5713
Vukšić Popović M, Tanasković J, Starčević Z, Međedović N. The trend of train coupling failure on Serbian railways in 10 year period. in XX Scientific-Expert Conference on Railways - RAILCON '22, Proceedings. 2022;:109-112.
https://hdl.handle.net/21.15107/rcub_machinery_5713 .
Vukšić Popović, Marija, Tanasković, Jovan, Starčević, Zorica, Međedović, Nebojša, "The trend of train coupling failure on Serbian railways in 10 year period" in XX Scientific-Expert Conference on Railways - RAILCON '22, Proceedings (2022):109-112,
https://hdl.handle.net/21.15107/rcub_machinery_5713 .