Ikerketa-DoktoregoTesiak: Recent submissions
Now showing items 181-200 of 305
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3D inspection methods for specular or partially specular surfaces
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2020)Deflectometric techniques are a powerful tool for the automated quality control of specular or shiny surfaces. These techniques are based on using a camera to observe a reference pattern reflected on the surface under ... -
Modeling for harmonic analysis of ac offshore wind power plants
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2019)This Ph.D. dissertation presents the work carried out on the modeling, for harmonic analysis, of AC offshore wind power plants (OWPP). The studies presented in this Ph.D. thesis are oriented to two main aspects regarding ... -
Remaining useful life estimations applied on the sizing and the prognosis of lithium ion battery energy storage systems
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2020)The present thesis develops an accurate sizing tool for the most relevant lithium ion battery energy storage system applications considering the aging and the remaining useful life. The developed tool involves firstly, the ... -
An attribute oriented induction based methodology to aid in predictive maintenance: anomaly detection, root cause analysis and remaining useful life
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2019)Predictive Maintenance is the maintenance methodology that provides the best performance to industrial organisations in terms of time, equipment effectiveness and economic savings. Thanks to the recent advances in technology, ... -
Electrochemical model-based advanced battery control systems
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2020)Nowadays energetic scenario is changing, improving the actual energy mix, and using cleaner and more sustainable energy generation and consumption methods. Renewable energies are key within this context for a more ... -
Influence of alternative mould materials and inhibitors on mould-metal reactions in magnesium investment casting
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2012)Investment casting of magnesium is a process well suited for the production of aeronautic and automotive components, as light density components in medium and small series are obtained. But, still nowadays, this process ... -
Air coupled ultrasonic inspection of fiber reinforced composite materials
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2020)The increase in the use of composite materials in recent years has led the industry into the development of new composite manufacturing processes, like the 3D ultraviolet pultrusion. These new manufacturing processes usually ... -
La innovación abierta en los centros tecnológicos y su efecto en el desempeño
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2020)The present investigation focuses in research and technology organizations, which are R&D agents, with a mission is to contribute to business development through knowledge and technology transfer. Research and technology ... -
Modular multilevel converter based HVDC transmission system for offshore wind farms
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2012)This doctoral thesis falls within the scope of electronic power converters oriented to high voltage transmission applications, in particular the power generated in remote offshore wind farms by means of HVDC subsea ... -
A novel approach for Lithium-Ion battery selection and lifetime prediction
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2014)Las aplicaciones objetivo y sus condiciones de operación determinan la utilidad de las diferentes tecnologías de almacenamiento ion-litio disponibles en el mercado. Incluso para una misma tecnología, hay factores adicionales ... -
Understanding of the behaviour of organisational commitment using a system dynamics model
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2018)In our increasingly globalised economy, managing continuous change whilst remaining competitive and dynamic, has become a central issue for organisations in the industrial sector. Organisations which defend a people ... -
Optimización de los procesos de separación en muestras de interés biotecnológico en microdispositivos
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2012)The work of this doctoral thesis, has focused on the numerical, experimental analysis of the separation processes optimization in micro-nano-biotechnology interest fluids. Specifically, we have determined the thermophysical ... -
Curado microondas de resinas furánicas reforzadas con fibra de basalto: caracterización a fuego y a impacto
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2014)En esta tesis se ha llevado a cabo el estudio de las resinas furánicas provenientes de materias primas de origen natural y renovable, que han sido empleadas en el desarrollo de materiales compuestos mediante el curado por ... -
Simulación numérica y validación experimental de fenómenos de desgaste y fatiga por fretting en aceros trefilados de reducido diámetro
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2016)Many mechanical components such as, bearing housings, exible couplings and spines or steel wires are simultaneously subjected to fatigue and fretting damage. Fretting phenomenon arises when two bodies are in contact subjected ... -
Dynamics of viscoelastic-magnetorheological sandwich structures: multiphysics analysis
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2017)A fundamental aim of many industrial sectors is the reduction of structural vibration in order to increase the service life of mechanical components and diminish noise radiation. Viscoelastic sandwiches have been widely ... -
Desarrolo de un modelo para abordar proyectos de mejora continua de procesos productivos de forma eficaz y eficiente
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2012)The purpose of this thesis is to develop a model for implementing an effective and efficient continuous improvement projects, aimed at increasing the performance of production processes. In particular, it aims to innovate ... -
Design robust controllers for load reduction in wind turbines
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2013)This thesis determines a design methodology of robust and multivariable controllers based on the H∞ norm reduction and on LPV (Linear Parameter Varying) techniques for load reduction in wind turbines. In order to do this, ... -
Finite element modelling and experimental validation of fretting wear in thin steel wires
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2012)Fretting wear is one of the main degradation mechanism produced in steel wire ropes. This phenomenon leads to produce wear scars between the contacting thin steel wires reducing considerably the fatigue life of these ... -
Numerical characterization study of pressure drop and heat transfer phenomena in woven wire matrix of a stirling engine regenerator
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2014)Stirling engines are an attractive alternative for micro-cogeneration mainly motivated for it is able to use any heat source and achieve high efficiency. A crucial component in these engines is the regenerator, which has ... -
Theoretical, experimental and numerical analysis of mechanics and contact behaviours of a thermoplastic polyurethane elastomer used as cover rope in lift industry
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2012)Thermoplastic polyurethane elastomers (TPU) are a class of elastomer that can be processed by heat without being destroyed. In addition to the unique mechanical performance properties of elastomers (soft, high deformation ...
