Departament d'Enginyeria Mecànica
Recent Submissions
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Contribución al estudio de la rugosidad superficial obtenida mediante el proceso de fresado en alta velocidad, en la fase de acabado, de aceros templados de moldes y matrices
(Universitat Politècnica de Catalunya, 2018-11-23)
Doctoral thesis
Open AccessThe production of components of the moulds and dies sector is increasingly demanding. On the one hand, a better manufacturing quality is required, that requires, among other aspects, the improvement of the surface finish, ... -
Aportació a l'estudi de la reducció de vibracions residuals en transitoris de moviment generats mitjançant accionaments de cinemàtica no lineal
(Universitat Politècnica de Catalunya, 2017-12-22)
Doctoral thesis
Open AccessMachines and mechanisms can usually exhibit a vibratory behavior during operation since they are formed by deformable solids of non-negligible mass and non-rigid joints. This oscillatory behavior can be shown for transient ... -
Electroplastic cutting influence in machining processes
(Universitat Politècnica de Catalunya, 2017-09-22)
Doctoral thesis
Open AccessThe thesis presented is performed with the aim of studying the effect of electropulses (EPs) in machining processes such as drilling and round turning processes for different materials. When the EPs of short duration are ... -
Finite element simulation of the healthy and degenerated lumbar spine : interplay between muscle activity and intervertebral disc multiphysics
(Universitat Politècnica de Catalunya, 2016-11-14)
Doctoral thesis
Open AccessThe human spine provides mechanical support to the trunk while it protects the spinal cord and nerves from the external loads transferred during daily activities. Such loads are largely controlled by the spine muscles and ... -
Novel lubrication system to improve the excessive wear in wind turbine yaw and pitch gears
(Universitat Politècnica de Catalunya, 2015-04-28)
Doctoral thesis
Open AccessManufacturers of wind turbines have observed a new phenomenon that appears in high power wind turbines: excessive wear in the teeth located at 0º in the pitch bearing. In order to design more efficient wind turbines, ... -
Minimisation of the wire position uncertainties of the new CERN vacuum wire scanner
(Universitat Politècnica de Catalunya, 2016-02-29)
Doctoral thesis
Open AccessThe particle production of an accelerator is characterised by the accelerated species of particles, by their number and energy. The particle rate is determined by the production cross section, a natural constant and the ... -
Electropulsing to assist conventional manufacturing processes
(Universitat Politècnica de Catalunya, 2016-01-26)
Doctoral thesis
Open AccessThis thesis presents a study on the variation of the mechanical properties of some materials. These variations are registered for processes as bottom bending, wire drawing or round turning, which are performed under high ... -
Analysis and design of a capillary driven blood plasma separation microfluidic device
(Universitat Politècnica de Catalunya, 2014-01-17)
Doctoral thesis
Open AccessRecently, the emergence of lab-on-a-chip devices has seen in a variety of applications especially in clinical analys is and diagnostics. ln particular the lack of suitable microdevices for separation of plasma from whole ... -
Estudio del comportamiento vibratorio de vías ferroviarias mediante simulación numérica
(Universitat Politècnica de Catalunya, 2014-10-17)
Doctoral thesis
Open AccessIn the last decades, the problem of the vibrations and the noise generated by the rolling and the undulatory wear has been approached by multiple research groups. These groups have developed studies with the intention of ... -
Direct current insulator based dielectrophoresis (DC-iDEP) microfluidic chip for blood plasma separation
(Universitat Politècnica de Catalunya, 2015-04-10)
Doctoral thesis
Open AccessLab-on-a-Chip (LOC) integrated microfluidics has been a powerful tool for new developments in analytical chemistry. These microfluidic systems enable the miniaturization, integration and automation of complex biochemical ... -
Estudio del proceso de bruñido con bola asistido por una vibración
(Universitat Politècnica de Catalunya, 2015-04-17)
Doctoral thesis
Open AccessThe aim of this thesis is studying and characterizing a ball burnishing process assisted with vibrations. By introducing vibrations in the overall process, results are enhanced if compared to the ones derived from a ... -
Mecanismes de lleves conjugades amb palpador de corrons. Aportació a l'estudi de la fallada per fatiga superficial
(Universitat Politècnica de Catalunya, 2014-05-06)
Doctoral thesis
Open AccessThis thesis presents the dynamic study of conjugate cam mechanisms with rollers follower and translational movement, to design them with the aim of retard the surface fatigue failure in the rollers. The premature failure ...
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