Zobrazeno 1 - 10
of 294
pro vyhledávání: '"K W Ahmed"'
Publikováno v:
Wear. :1-14
High frequency and high magnitude wheel-rail impact forces caused by high order wheel polygonalization have been associated with service failures of different structural components in high-speed rail vehicles. In this study, a long-term wear iterativ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a3212e1a05154bfe2d0131b12b71afc
https://doi.org/10.1016/j.wear.2019.01.099
https://doi.org/10.1016/j.wear.2019.01.099
Autor:
Jing Zeng, Subhash Rakheja, Huanyun Dai, A. K. W. Ahmed, Xingwen Wu, Huichao Wu, Sheng Qu, Pingbo Wu
Publikováno v:
Vehicle System Dynamics. 57:914-934
High magnitude impact loads caused by polygonal wear of the wheels have been associated with in-service failures of structural components of high-speed railways, although the mechanisms leading to ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4dd3b2dda15bef271b18dc9b990c05a
https://doi.org/10.1080/00423114.2018.1494842
https://doi.org/10.1080/00423114.2018.1494842
Publikováno v:
Vehicle System Dynamics. 56:1817-1837
The polygonal wear around the wheel circumference could pose highly adverse influences on the wheel/rail interactions and thereby the performance of the vehicle system. In this study, the effects o...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3acea9b3e012ca8a1ab854d7bcacba58
https://doi.org/10.1080/00423114.2018.1439589
https://doi.org/10.1080/00423114.2018.1439589
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit. 232:1033-1048
Large magnitude impact loads caused by wheel flats may excite various vibration modes of wheelsets employed in high-speed trains and thereby contribute considerably to the dynamic response of vehicles. In this study, the wheelset is modeled as a flex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::394f9c9413233222575ec5b7e67db3c5
https://doi.org/10.1177/0954409717708895
https://doi.org/10.1177/0954409717708895
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit. 231:877-891
In this study, the nonlinear damping characteristics of friction wedges in the secondary suspension of a freight wagon are investigated considering nonsmooth unilateral contact, multiaxis motions, slip–stick conditions, and geometry of the wedges.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c827948a1f32069cbdb2d69d42fff4c3
https://doi.org/10.1177/0954409716647095
https://doi.org/10.1177/0954409716647095
Publikováno v:
Vehicle System Dynamics. 51:1695-1721
This paper presents dynamic contact loads at wheel–rail contact point in a three-dimensional railway vehicle–track model as well as dynamic response at vehicle–track component levels in the presence of wheel flats. The 17-degrees of freedom lum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::961cb4af83465384e313f23b2b5511df
https://doi.org/10.1080/00423114.2013.822987
https://doi.org/10.1080/00423114.2013.822987
Publikováno v:
SAE International Journal of Commercial Vehicles. 6:288-300
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45917daba611a4cecfd7aac07a542ea3
https://doi.org/10.4271/2013-01-2355
https://doi.org/10.4271/2013-01-2355
Publikováno v:
SAE International Journal of Passenger Cars - Mechanical Systems. 5:1273-1284
Technological developments in road vehicles over the last two decades have received considerable attention towards pushing the safe performance limits to their ultimate levels. Towards this goal, Active Front Steering (AFS) and Direct Yaw-moment Cont
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::654b8f7c9ca043d4acd48fa57ed27e0d
https://doi.org/10.4271/2012-01-2013
https://doi.org/10.4271/2012-01-2013
Publikováno v:
Vehicle System Dynamics. 48:1535-1552
In practice, it is not very uncommon to find railway track systems with unsupported sleepers due to the uneven settlement of a ballasted track system. These unsupported sleepers are among the major vibration excitations for a train and track system w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6fe1f94ea6014b4dab2b28417057819
https://doi.org/10.1080/00423110903540751
https://doi.org/10.1080/00423110903540751
Publikováno v:
The Open Transportation Journal. 4:23-32
This study presents an analysis of effectiveness of different designs of baffles, including the conventional, partial and oblique, in limiting the manoeuvre-induced transient as well as steady-state fluid slosh forces and moments in a partly-filled t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c62b9caaa4e6dfa08ea8bc14b066f0c
https://doi.org/10.2174/1874447801004010023
https://doi.org/10.2174/1874447801004010023