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Showing 1 to 6 of 6 for “"railway vehicle"”.
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Vertical dynamics of railway vehicle-track system
A comprehensive finite element (FE) model of railway vehicle-track system is developed to study the dynamic interaction between the vehicle and track. The vehicle is represented by a lumped parameter system. The track is modeled as a Timoshenko beam on discrete pad-tie-ballast supports. The tie is …
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A comparative study of modified passenger railway vehicle trucks
… and environmental concerns. The conventional railway truck designed for operation at high speed of approximately 200 km/hr makes use of stiff primary suspension elements to provide good dynamic stability. The curving performance of such a vehicle is poor because of wheelset misalignment in …
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Multiple model based real time estimation of wheel-rail contact conditions
… a problem for thedesign and operation of the railway vehicles. The level of adhesion can be influenced bymany different factors, such as contamination, climate, and vegetation, and it isextremely difficult to predict with certainty. Changes in the adhesion conditions can berapid and …
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Fault tolerant strategy for actively controlled railway wheelset
Traditionally, solid axle railway wheelsets are stabilised by using passive suspensions on a conventional rail vehicle, but such additional stiffness affects the pure rolling action of the wheelset around the curve. It has been theoretically proven that this design conflict between stability and …
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Improvement of semi-active control suspensions based on gain-scheduling control
… to both vertical and lateral suspensions of a railway vehicle in this study and the improvements in ride quality are evaluated with several different track data. For the purpose of performance comparison, a semi-active controller based on skyhook damping control integrated with MR dampers and …
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Fahrstabilität und Bogenfahrt von Schienenfahrzeugen mit drei gesteuerten Radsätzen
Ein Schienenfahrzeug erzeugt geringe Gleiskräfte und geringen Verschleiß an Rädern und Schienen, wenn sich die Radsätze im Gleisbogen radial einstellen. In dieser Arbeit wird untersucht, welche Bedingungen für ein dreiachsiges Fahrwerk mit radialer Einstellbarkeit gelten, damit es möglichst stabil …