Bond Graph Analysis of Dynamic Interaction Between the Concrete Slab and Subgrade for High-Speed Track
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It has been observed in the past few years that there has been a shift in the consumption pattern of resources across industries, like from diesel and diesel vehicles to electric or other alternative fuel vehicles, due to the finiteness in the availability of fossil fuels. In the present times, high-speed train is one of the examples of such electric-driven vehicles that has gained popularity among the masses, especially in the urban areas, which is mainly due to the numerous advantages that it has, like easy usability, cheaper mode of commute, quicker and faster, and increased comfort. It is due to all these factors that the study on these systems is of utmost importance for their best performance. This paper deals with the study, focused to shed some light on the effect of the speed of the vehicle on the deflection between concrete slab and subgrade contact, and track components. The comfort and safety of the passengers in such vehicles are directly affected by the interaction between the subgrade and the slab. This article contains the dynamic analysis of a three-dimensional, modal bong graph model of the components of the high-speed track. In this paper, the concrete slab has been modelled as a Euler–Bernoulli beam, and the beam has further been divided into five nodes. Cement–asphalt mortar is used to join the two parallel concrete slabs. The model developed consequently is simulated for train speeds varying between 200 and 500 kmph. SYMBOLS SHAKTI software is used to develop the bond graph model and simulate it.
KeywordsBond graph modelling Wheelset Lateral dynamics
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