Zobrazeno 1 - 10
of 110
pro vyhledávání: '"Jan Lundberg"'
Publikováno v:
Sensors, Vol 24, Iss 2, p 477 (2024)
Switches are an essential, safety-critical part of the railway infrastructure. Compared to open tracks, their complex geometry leads to increased dynamic loading on the track superstructure from passing trains, resulting in high maintenance costs. To
Externí odkaz:
https://doaj.org/article/1736224adce84ef796b867096decb6f1
Publikováno v:
Applied Sciences, Vol 13, Iss 9, p 5376 (2023)
Switches and crossings (S&Cs) are also known as turnouts or railway points. They are important assets in railway infrastructures and a defect in such a critical asset might lead to a long delay for the railway network and decrease the quality of serv
Externí odkaz:
https://doaj.org/article/b85a623a3e494111b6e51d083462ad88
Publikováno v:
Sensors, Vol 23, Iss 7, p 3666 (2023)
Railway switches and crossings (S&C) are among the most important high-value components in a railway network and a failure of such an asset could result in severe network disturbance. Therefore, potential defects need to be detected at an early stage
Externí odkaz:
https://doaj.org/article/07144b78981349dcb07c91c976250021
Publikováno v:
Sensors, Vol 21, Iss 15, p 5217 (2021)
The switch and crossing (S&C) is one of the most important parts of the railway infrastructure network due to its significant influence on traffic delays and maintenance costs. Two central questions were investigated in this paper: (I) the first ques
Externí odkaz:
https://doaj.org/article/adaf4c071e7e4d9e9280546ac17b9522
Publikováno v:
Algorithms, Vol 11, Iss 8, p 123 (2018)
The aim of this study has been to develop a novel two-level multi-objective genetic algorithm (GA) to optimize time series forecasting data for fans used in road tunnels by the Swedish Transport Administration (Trafikverket). Level 1 is for the proce
Externí odkaz:
https://doaj.org/article/f8949d49b7ac4f05a879d50db5d58730
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit. 236:662-671
The friction forces between the wheel and rail depend on a number of variables including the third body layer at the wheel–rail interface, the wheel and rail profiles, and the train dynamics. The third body layer significantly influences the damage
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ec6fec4e7f722b54d9bdcec356944f6
https://doi.org/10.1177/09544097211034688
https://doi.org/10.1177/09544097211034688
Autor:
Jan Lundberg, Taoufik Najeh
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 112:1077-1088
This study is motivated by the need for a new advanced vibration-based bearing monitoring approach. The ARX-Laguerre model (autoregressive with exogenous) and genetic algorithms (GAs) use collected vibration data to estimate a bearing’s remaining u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94e5b14b418f63b94a78a04178db17a0
https://doi.org/10.1007/s00170-020-06416-1
https://doi.org/10.1007/s00170-020-06416-1
Publikováno v:
Insight - Non-Destructive Testing and Condition Monitoring. 62:387-395
In this study, near-surface cracks in a railhead are inspected thoroughly using phased array ultrasonic testing (PAUT). This research finds an alternative technique to inspect for near-surface cracks because the conventional non-destructive testing m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::facf909e0e766e4168199f4612c27022
https://doi.org/10.1784/insi.2020.62.7.387
https://doi.org/10.1784/insi.2020.62.7.387
Publikováno v:
International Journal of Computer Integrated Manufacturing. 33:1076-1088
The aim of this study has been to develop a two-level multi-objective genetic algorithm (MOGA) to optimize risk-based LCC analysis to find the optimal maintenance replacement time for road tunnel v...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79e5d21d2a0f67df1c530c9cfe6a36c6
https://doi.org/10.1080/0951192x.2020.1757157
https://doi.org/10.1080/0951192x.2020.1757157
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit. 235:83-93
The application of top-of-rail friction modifiers (TOR-FMs) is claimed by their manufacturers as a well-established technique for minimising the damages in the wheel–rail interface. There are various methods for applying friction modifiers at the w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1da328eef951c289bb7905c6eb410c64
https://doi.org/10.1177/0954409720904255
https://doi.org/10.1177/0954409720904255