Browsing Programa de Doctorat en Enginyeria Mecànica, Fluids i Aeronàutica by Subject "625"

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An efficient methodology based on two-and-a-half-dimensional finite element and boundary element methods for ground-borne vibration radiated by underground railway tunnels and the re-radiated noise emitted inside them

Ghangale, Dhananjay (Date of defense: 2019-07-19)

This thesis presents a methodology for assessing induced ground-borne vibration due to Underground railway infrastructures in the context of an urban environment. The methodology is based on a comprehensive numerical ...

Computational aeroacoustics in the automotive industry

Martín Navarrete, Rocío (Date of defense: 2021-02-02)

The acoustic field inside a car cabin for low driving speeds is dominated by the engine or the tire noise. However, for mid to high velocities, the noise generated by the interaction of the car with the external air becomes ...

Fractal approach to wheel-rail roughness contact theory

Babici, Laura Mariana (Date of defense: 2023-12-21)

(English) In this study, the Weierstrass fractal function was used to model the surface roughness of railway tracks and, subsequently, the static coefficient of friction (COF) for Hertzian rail-wheel contact and cylinder-plane ...