منابع مشابه
Impacts of Wheel–rail at Railway Turnouts
Investigation of vertical vibrations of a railway turnout is important in designing track components under moving loads of trains. In this paper, the turnout is simulated by a linear finite element model with modal damping. A section of the turnout has a length of 36 sleeper spans surrounding the crossing. Rails and sleepers are modeled with uniform Rayleigh-
Timoshenko beam elements. The ra...
متن کاملImpacts of Wheel–rail at Railway Turnouts
Investigation of vertical vibrations of a railway turnout is important in designing track components under moving loads of trains. In this paper, the turnout is simulated by a linear finite element model with modal damping. A section of the turnout has a length of 36 sleeper spans surrounding the crossing. Rails and sleepers are modeled with uniform Rayleigh- Timoshenko beam elements. The rail...
متن کاملContact Force Estimation in the Railway Vehicle Wheel-Rail Interface
Increased patronage of railways in the UK in the past 20 years has put demands on rolling stock to operate at peak availability with reduced time available for maintenance. One possible tool to enable this is the use of real time fault detection and diagnosis on board railway vehicles to detect faulty components and provide information about the current running condition of the system. This pap...
متن کاملRail track costs management for efficient railway charges
j1 Francisco Calvo PhD Associate Professor, TRYSE Research Group, Department of Civil Engineering, University of Granada, ETSI Caminos, Granada, Spain j2 Juan de Oña PhD Associate Professor, TRYSE Research Group. Department of Civil Engineering, University of Granada, ETSI Caminos, Granada, Spain j3 Griselda López BEng Researcher, TRYSE Research Group. Department of Civil Engineering, Universit...
متن کاملRailway Modelling - The Case for Ontologies in the Rail Industry
As the demand for rail travel grows amongst the travelling public, capacity on the largely Victorian infrastructure is becoming an important issue. High construction costs and the need for environmental responsibility mean that simply building more lines is not necessarily a viable option, and therefore the rail industry is beginning to look for ways in which their current assets can be used mo...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1892
ISSN: 0036-8733
DOI: 10.1038/scientificamerican05071892-13625csupp