Caracterización dinámica de una vía ferroviaria mediante un dispositivo de masa desbalanceada: diseño y simulación del dispositivo de masa desbalanceada con doble disco rigido y precarga en su estructura.

Abstract

A railway structure or track includes several elements that go from the rail to the platform where said structure sits. Each of these elements the superstructure in terms of safety such as its reliability or stability, environmental effects that occur such as noise and vibrations and high maintenance costs. Knowledge of the dynamic properties such as stiffness and damping of each element that makes up the railway structure is essential to predict performance of the structure in the project phase to optimize its maintenance so that it remains within the safety and impact margin. also taking into account small defects or wear over time. It is possible to characterize the railway through dynamic tests in a laboratory with specific equipment, but it is impossible for tests on assembled infrastructures. The unbalanced mass device that generates vibrations on railway tracks will evaluate the mechanical and dynamic properties of a track in operation, giving us relevant information on the damping and stiffness of the track with dynamic parameters such as the vertical force generated by this exciter in addition to defects or wear. that this structure has, avoiding auditory and environmental contamination.