Reducing slab track vibration into bridge using elastic materials in high speed railway
نویسندگان
چکیده
منابع مشابه
Seismic response analysis of high-speed railway vehicle-slab ballastless track-bridge system under near- fault pulse ground motions
This paper presents a finite element method (FEM) framework for the dynamic analysis of coupled vehicle—bridge systems under nearfield /far-field ground motions. A train car with two bogies is assumed to be represented sufficiently by a discrete, rigid multi-body system with thirty-eight degrees of freedoms (DOFs). The normal Hertzian contact theory and the tangential Kalker linear theory modif...
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If the low-maintenance characteristics of slab track on open line are to be retained, great care must be taken to ensure that the subgrade layers are homogenous and capable of bearing the loads imposed [2]. The slabs can be precast or poured on site. The most known tracks with precast slabs are Shinkansen line in Japan and Max Bögl slab track designed in Germany [2], while as examples of the tr...
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Based on the theory of vehicle track coupling dynamics, the local vibration of the high-speed railway box girder is analyzed by the Finite Element Method and the model is simulated with the solid elements. Through the study of vibration characteristics of the selected 6 sensitive points, the local vibrations in different parts of the box girder are figured out. It is compared the response of th...
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Railway track-bed materials are mostly in unsaturated state, and their hydro-mechanical properties depend strongly on their water contents or suctions. In France, problematic soils such as collapsible loess and swelling marl can be origin of instability problems for new lines for high speed trains, while the hydro-mechanical behaviour of interlayer soil formed mainly by interpenetration of ball...
متن کاملVibration isolation analysis of elastic bearing based on train-track-bridge coupled vibration model
ABSTRCT: Elastic bearings have been used on simply supported bridges on high-speed railway in Taiwan to isolate train-induced vibration. However, their influence on dynamic behavior of the vehicle and bridge has not been fully investigated, and their vibration attenuation has not been quantificationally discussed. In this study, spring-damper elements with 12 degrees of freedom are established ...
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ژورنال
عنوان ژورنال: Journal of Sound and Vibration
سال: 2011
ISSN: 0022-460X
DOI: 10.1016/j.jsv.2010.11.023