Results 1 to 10 of about 1,461,299 (208)
Railway Engineering Science, 2023 Low-frequency carbody swaying phenomenon often occurs to railway vehicles due to hunting instability, which seriously deteriorates the ride comfort of passengers.
Yixiao Li +3 more
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Estimation of the equivalent conicity of wheel treads with worn rolling surface
Вестник Научно-исследовательского института железнодорожного транспорта, 2018 The safety of freight trains motion that have empty cars in their composition is in many cases determined by the stability of the motion of these cars.
A. Ya. Kogan
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MATEC Web of Conferences, 2018 The article presents the results of determining the equivalent conicity characterizing the geometric interaction of wheels and rails on 1520 mm track.
Gerlici Juraj +3 more
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Equivalent conicity as a parameter for assessing track condition
Pojazdy SzynoweSafety is at the heart of rail transport. Accurate assessment of the technical condition of rail infrastructure is the basis for rail transport safety.
Julian Kominowski, Marcin Słowiński
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Estimation of wheelset equivalent conicity using the dual extended Kalman filter
Multibody System Dynamics, 2023 AbstractThis paper presents the implementation of the dual extended Kalman filter (DEKF) to estimate wheelset equivalent conicity, an accurate understanding of which can facilitate the implementation of an effective model-based estimator. The estimator is developed to identify the wheelset equivalent conicity of high-speed railway vehicles while ...
Rickard Persson +2 more
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Communications, 2004 The rail-wheel interface is fundamental to explain the dynamic running behaviour of a railway vehicle. It must therefore be understood and among the parameters by which it is characterised, the one called "equivalent conicity" plays an essential role ...
Juraj Gerlici +2 more
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Estimation of Equivalent Conicity from Contactless Measurements of Wheel and Rail Profiles [PDF]
Journal of Physics: Conference Series, 2022 Abstract Measurement of Equivalent Conicity is quite important index to properly evaluate geometric quality of rails and wheels. The way in which this index is evaluated is evaluated is described by the standard EN 15302 from online contactless measurement of rail profiles performed by a dedicated measurement coach.
Pugi L. +5 more
semanticscholar +4 more sources
Study of Resonance between Bogie Hunting and Carbody Mode via Field Measurements and Dynamic Simulation [PDF]
SensorsBy addressing the phenomenon of carbody abnormal vibrations in the field, the acceleration of the carbody and bogie was measured using accelerometers, and the diamond mode of the carbody was identified.
Sheng Yang +3 more
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Discussing the effect of the wheelset equivalent conicity on the stress-strain state of the rails
Proceedings of Petersburg Transport University, 2021 Objective: To assess the effect of the wheelset equivalent conicity on the stress-strain state of the rails. Methods: Authors used numerical integration methods for systems of nonlinear differential equations of motion in the Universal Mechanism software package. Experimental studies were carried out on the St. Petersburg – Moscow high-speed line using
Lyudmila S. BLAZHKO +3 more
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Determining the Equivalent Conicity for Railway Wheelset Maintenance with Deep Ensembles
Annual Conference of the PHM Society, 2018 The Equivalent Conicity is an indirect measure that is indicative of the amount of dynamic instability for a given wheelset. Therefore, it cannot be acquired directly from a physical component, but needs to be determined with related physical measures. The interaction between the conical wheel profiles, their diameter, the track profile, and its gauge,
Alexandre Trilla, Xavier Cabré
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