Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Habibollah Molatefi"'
Publikováno v:
Mathematical Problems in Engineering. 2022:1-10
Rail welds are considered as the weak part of a railway track. Their defects and health can directly affect wheel-rail interaction, track safety, and reliability. Current practices for rail welds health assessment are based on 2D vertical and lateral
Autor:
Habibollah Molatefi, Morad Shadfar
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit. 236:1114-1123
As track components deteriorate, their interaction dynamic response will alter accelerations on the train. Measuring acceleration on train components is a method to conduct condition monitoring of track defects. The measured signal can be used for th
Publikováno v:
Journal of Vibration and Control. 27:629-650
Wheel slip control in high-speed trains is used to reduce the acceleration time and produce the maximum traction motor power. For controlling slip in a complete model of a train consisting of the traction motors, it is needed to keep the adhesion coe
Publikováno v:
Wear. :97-110
Owing to increases in route traffic, axle load, and incompatible combinations of wheel-rail profiles in freight wagons, the Iran railway network has encountered a tremendous increase in localized wheel flange wear. Thus, a strategy was applied to sel
Publikováno v:
Mathematical Problems in Engineering, Vol 2021 (2021)
High-speed railway vehicles operate much faster than traditional railway vehicles. After a four-axle high-speed railcar is modeled, an analytical solution is employed in this paper to solve dynamic equations. According to this analytical solution, th
Publikováno v:
Chinese Journal of Mechanical Engineering. 30:963-972
In recent years and according to modern transportation development, rail vehicles are manufactured lighter to achieve higher speed and lower transportation costs. On the other hand, weight reduction of rail vehicles leads to increase the structural v
Publikováno v:
Journal of the Brazilian Society of Mechanical Sciences and Engineering. 39:2945-2956
The angle of attack of a wheelset in a curve is a critical parameter in running safety and curving performance of a railway vehicle. Running with a large angle of attack (AOA) will intensify wear, noise and risk of derailment and, therefore, reductio
Publikováno v:
Journal of Vibroengineering, Vol 18, Iss 4, Pp 2061-2073 (2016)
The vibrations of pantograph passing underneath the overhead system can be reduced by using droppers to place the contact wire in the designed curve. Nowadays, various software programs are used to estimate dynamic interaction of pantographs and over
Autor:
Habibollah Molatefi, Hozhabr Mozafari, Eugenio Guglielmino, Soroush Khatami, Vincenzo Crupi, Gabriella Epasto
Publikováno v:
International Journal of Crashworthiness. 21:148-160
The aim of this research is the investigation of foam-filled honeycomb sandwich panels under in-plane impact loading and the analysis of their crashworthiness. This paper presents a finite element analysis of foam-filled honeycomb sandwiches under in
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Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec315add6a317e540c585f580aed1ccb
https://depositonce.tu-berlin.de/handle/11303/13183
https://depositonce.tu-berlin.de/handle/11303/13183