Departament d'Enginyeria Mecànica
Recent Submissions
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Improved condition monitoring of hydraulic turbines based on artificial intelligence techniques
(Universitat Politècnica de Catalunya, 2021-07-21)
Doctoral thesis
Open AccessAs a type of renewable energy that can provide rapid response to the requirement of the power grid, hydropower plays a fairly important position in the energy market. In recent years, with the enormous entrance of new ... -
Contribución a la metodología de caracterización dinámica de materiales resilientes para aplicaciones ferroviarias
(Universitat Politècnica de Catalunya, 2021-07-09)
Doctoral thesis
Open AccessThis thesis is focused on the enhancement and development of advanced methodologies for the dynamic characterisation of resilient elements used in railway applications. On the one hand, this thesis proposes several ... -
Análisis de la respuesta dinámica en agitadores industriales
(Universitat Politècnica de Catalunya, 2021-06-01)
Doctoral thesis
Open AccessIn food and pharmacological industries, reducing the production time and improving the machine flexibility to be adapted to new products is a constant necessity. This generate changes on the initial working conditions for ... -
Second life batteries of electric vehicles : analysis of use and management models
(Universitat Politècnica de Catalunya, 2021-02-09)
Doctoral thesis
Open AccessThe mobility of the future undoubtedly involves the electrification of vehicles. The increase in social awareness towards a reduction in CO2 emissions, together with the introduction of new laws regulating them, has finally ... -
Computational aeroacoustics in the automotive industry
(Universitat Politècnica de Catalunya, 2021-02-02)
Doctoral thesis
Open AccessThe 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 ... -
Modelo estocástico de hueso cortical de costilla humana para la predicción de fracturas mediante emisión acústica
(Universitat Politècnica de Catalunya, 2021-02-04)
Doctoral thesis
Open AccessIn this document, a non-linear constitutive model with micro-cracking and irreversibility is proposed for cortical bone of the human rib, extended with a stochastic fracture model, based on acoustic emission. Both models ... -
Amortiguación de final de carrera de actuadores hidráulicos
(Universitat Politècnica de Catalunya, 2021-02-08)
Doctoral thesis
Open AccessThe internal cushioning systems of hydraulic linear actuators, of special interest in mobile machinery, pursue to avoid mechanical shocks at their end of stroke. The design where the piston, with perimeter grooves, regulates ... -
Numerical investigation and modelling of the unsteady behavior and erosion power of cloud cavitation
(Universitat Politècnica de Catalunya, 2021-01-28)
Doctoral thesis
Open AccessCloud cavitation is a unwanted phenomenon taking place in many hydraulic machines which damages the surfaces of the solid walls due to the erosive aggressiveness induced by the collapse process. Therefore, it is necessary ... -
Study of the beam induced vacuum effects in the cryogenic beam vacuum chamber of the Future Circular Hadron Collider
(Universitat Politècnica de Catalunya, 2021-01-25)
Doctoral thesis
Open AccessThe Future Circular Hadron Collider (FCC-hh) is a proposal for a 100 km long hadron collider conceived as the successor of the Large Hadron Collider (LHC). The FCC-hh is designed to reach 50 TeV of beam energy, greatly ... -
Numerical tools for computational design of acoustic metamaterials
(Universitat Politècnica de Catalunya, 2020-09-07)
Doctoral thesis
Open AccessThe notion of metamaterials as artificially engineered structures designed to obtain specific material properties, typically unachievable in naturally occurring materials, has captured the attention of the scientific and ... -
Contributions to aerostructures morphing with piezoelectric actuators
(Universitat Politècnica de Catalunya, 2020-04-03)
Doctoral thesis
Open AccessSince the first models developed in the late 19th century, the applications of piezoelectric materials have been progressively growing in number. The capacity of these materials to couple electric and mechanic fields makes ... -
Research on fluidic oscillators under incompressible and compressible flow conditions
(Universitat Politècnica de Catalunya, 2020-07-24)
Doctoral thesis
Open AccessOne of the main advantages of fluidic oscillators is that they do not have moving parts, which brings high reliability whenever being used in real applications. To use these devices in real applications, it is necessary ...
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