Essays about: "Wheel-rail contact"
Showing result 6 - 10 of 15 essays containing the words Wheel-rail contact.
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6. Estimation of wheel-rail friction at vehicle certification measurements
University essay from KTH/SpårfordonAbstract : In certification of new rail vehicles with respect to running characteristics, a wide variety of operating conditions needs to be considered. Behaviour on straight and curved tracks, including twisted tracks at various speeds, is of great importance. However, the wheel-rail friction should always be high corresponding to dry conditions. READ MORE
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7. The potential of Fluid Dynamic Absorbers for railway vehicle suspensions
University essay from KTH/SpårfordonAbstract : The main running objectives concerning the vertical dynamics of passenger rail vehicles are ride comfort and safety. The goal of this thesis is to employ the use of a Fluid Dynamic Absorber to minimize the vertical acceleration of the car body while minimizing the dy-namic force fluctuations in the wheel rail contact. READ MORE
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8. Verication of simulated wheel-rail forces with measured data
University essay from KTH/SpårfordonAbstract : The purpose of this thesis was to verify the simulated wheel-rail forces from the simulation soft-ware Simpack by comparing the results with on-track measurements. The report constitutes a literature study on wheel-rail contact modelling and techniques for measurements of track forces and track irregularities. READ MORE
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9. Investigation of Causes for Wheel Squeal on Roslagsbanan in Stockholm
University essay from KTH/SpårfordonAbstract : The purpose of this work is to investigate the possible causes of wheel squeal on Roslagsbanan, a narrow gauge (891mm) suburban railway system in Stockholm, Sweden. Simulation of the dynamic behaviour of vehicles negotiating curves was carried out by means of the Swedish multibody simulation software GENSYS [1]. READ MORE
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10. High frequency vehicle-track interactionsimulation : Coupling of an advanced track model with a multi-bodysystem
University essay from KTH/JärnvägsteknikAbstract : The forces caused by the high frequency vehicle-track interaction have a great impact on thetrack maintenance. They should be represented in vehicle-track models in order to predicttheir impact. As a result, a multi-body system (MBS) should be extended with an advancedtrack model. READ MORE
