منابع مشابه
An integrated approach to dynamic analysis of railroad track transitions behavior
Railway transitions like bridge approaches experience differential vertical movements due to variations in track stiffness, track damping characteristics, ballast settlement from fouling and/or degradation, as well as fill and subgrade settlement. Proper understanding of this phenomenon requires the integration of field instrumentation with analytical and numerical modeling. This paper introduc...
متن کاملDynamic Response of the Coupled Vehicle-Floating Slab Track System using Finite Element Method
In present study, a mathematical model of the vehicle–floating slab track (FST) interaction is established to investigate the coupled behaviour of vehicle–track system. The FST is modelled as the double Euler -Bernoulli beam including the rail and slab. The railway vehicle is simplified as a multi-rigid-body model. The wheel–rail interface is treated using a nonlinear Hertzian contact model, co...
متن کاملa study on construction of iranian life tables: the case study of modified brass logit system
چکیده ندارد.
15 صفحه اولOnboard Dynamic Rail Track Safety Monitoring System
This proposal aims at solving one of the long prevailing problems in the Railways. This simple method of continuous monitoring and assessment of the condition of the rail tracks can prevent major disasters and save precious human lives. Our method is capable of alerting the train in case of any dislocations in the track or change in strength of the soil. Also it can avert the collisions of the ...
متن کاملEvaluating Railroad Track Upgrades to Reduce Transportation Risk
Transportation Research Record: Journal of the Transportation Research Board, No. 2261, Transportation Research Board of the National Academies, Washington, D.C., 2011, pp. 178–185. DOI: 10.3141/2261-21 structure and operational conditions. Track-related and equipmentrelated accident causes collectively result in the majority of train derailments in the United States. Understanding how they may...
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ژورنال
عنوان ژورنال: Applied Mathematical Modelling
سال: 1979
ISSN: 0307-904X
DOI: 10.1016/s0307-904x(79)80043-8