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Structural dynamics of roller coaster structures: transient analysis

Mekers, R.L.J. (2020) Structural dynamics of roller coaster structures: transient analysis.

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Abstract:In this paper a method for the analysis of vibrations in roller coaster structures is described. An initial design is required, from which the dimensions, material properties and the time histories of contact forces between vehicles and rails have to be retrieved as an input for the Finite Element model. The transient loads applied on the structure are obtained from a multibody dynamic model. The guiding principle of the Finite Element model is the equation of motion, which is solved iteratively to obtain the displacements of the structure for each load case. The proposed method is applied to an existing roller coaster to clarify the essential steps in the model and to test its capabilities. In the end, a second roller coaster is treated where undesired vibrations showed up, which could potentially have been identified before building it using the method proposed in this paper. The method is developed such that existing Finite Element models and multibody dynamic models of roller coasters can be reused to perform a transient analysis of the structure.
Item Type:Essay (Master)
Faculty:ET: Engineering Technology
Subject:52 mechanical engineering
Programme:Mechanical Engineering MSc (60439)
Link to this item:http://purl.utwente.nl/essays/80379
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