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AUTHOR(S): Erol Uyar, Ahmet Fatih Tunçel
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ABSTRACT The components used in the rail track structure (e.g. Rails, fixing systems and supports) and rail failures significantly affect vibration behavior and hence the safety and comfort of trains. The design of the suspension system is a particularly important task due to the interaction between wheel and rail, which ensures safe and optimal driving conditions in high-speed trains.[1-2]. The vibration behavior of the train in the medium and high frequency range (40-1500 Hz), which is influenced by the rail structure, can be viewed as an indicator with regard to sound radiation, vibration sensitivity and the interaction of rail-track forces. In this study, natural frequencies of a high-speed railway track under various self– excited constrains are investigated by using mathematical modelling and fundamental vibration analysis methods. Dynamic behavior and in particular the resonance conditions of a specially designed suspension system are examined for vertical movements depending on various parameters The double joint connected chasse-bogie design, existing of mass-dampers and springs, is described with a two degrees of freedom mathematical model and calculated natural frequencies of the track with relevant motion modes are then graphically presented. |
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KEYWORDS rail corrugation, wear Friction, self-excited vibration, vibration mode, resonance, natural frequency, bogie |
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Cite this paper Erol Uyar, Ahmet Fatih Tunçel. (2025) Modelling and Vibration Analysis of a Railway Track. International Journal of Mechanical Engineering, 10, 1-5 |
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