DoktoregoTesiak-Ingeniaritza: Envíos recientes
Mostrando ítems 141-160 de 227
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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 ... -
Fabricación de materiales compuesto de polibutilén tereftalato cíclico reforzados con tejido de fibra de carbono mediante VARTM y su posterior caracterización a impacto
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2012)In this thesis, the impact behaviour of the carbon fibre reinforced polybutylene terephthalate matrix composites manufactured by vacuum assisted resin transfer moulding has been investigated. The task has been carried out ... -
Design and implimentationof Multi-user MIMO precoding algorithms
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2011)The demand for high-speed communications required by cutting-edge applications has put a strain on the already saturated wireless spectrum. The incorporation of antenna arrays at both ends of the communication link has ... -
Machine generated vertical vibration in elevators
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2013)Vertical vibration deteriorates passenger comfort during an elevator travel. The drive system is a source of vertical vibration as well as the source of energy of the system. This report presents the results of a study of ... -
Estudio de los fenómenos de transporte termo-hidrodinámicos de no equilibrio en mezclas líquidas
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2012)In this doctoral thesis, an experimental study on the transport properties on liquid mixtures has been conducted. The molecular di usion coe cient, thermodi usion coe cient and Soret coe cient of several mixtures have been ... -
Functionality and dependability assurance in massively networked scenarios
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2014)El diseño de sistemas confiables y la reducción de costos han sido vistos como objetivos conflictivos. Las técnicas tradicionales para diseñar sistemas confiables replican los recursos del sistema para mejorar la tolerancia ... -
A methodology for designing layered ontology structures
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa., 2019-11)Semantic ontologies represent the knowledge from different domains, which is used as a knowledge base by intelligent agents. The creation of ontologies by different developers leads to heterogeneous ontologies, which hampers ... -
Methodology for the Accelerated Reliability Analysis and Prognosis of Underground Cables based on FPGA
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa., 2019-11)Dependable electrical power distribution systems demand high reliability levels that cause increased maintenance costs to the utilities. Often, the extra costs are the result of unnecessary maintenance procedures, which ... -
Soft Sensor-based Servo Press Monitoring
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2020)The force that a servo press exerts forming a workpiece is one the most important magnitudes in any metal forming operation. The process force, along with the characteristics of the die, is what shapes the workpiece. When ... -
A Knowledge-Based Engineering System Framework for the Development of Electric Machines
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2019)The new concept industry 4.0 is a great opportunity to improve the competitiveness in a global market for small-medium size electric machinery companies. The demand for electric motors have increased in the last decade ... -
Slender workpiece cutting process stability prediction and monitoring based on internal signals
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2019)Chatter is commonly found when machining slender components on a lathe due to the low stiffness and damping. Aspects such as accuracy and roughness are usually compromised owing to large variation in stiffness along the ... -
Causality between High-Involvement Work Systems, Employee Attitudes and Organisational Performance: a Two-Wave Longitudinal Study
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2019)In the ferocious and fast changing global workplace of today, maintaining competitive advantage has become paramount to success. Employees matter today more than ever since they become non-imitable sources of firm uniqueness ... -
BRANDUX: Metodología de evaluación para la mejora de la consistencia de marca, aproximación estética al diseño de touchpoints
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2019)The brand is a strategic asset capable of generating emotional bonds with its customers and positively influences their behaviors and thoughts. To do this, brand values need to be properly embedded in all touchpoints ... -
Wireless Channel Model and LDM-Based Transmission with Unequal Error Protection for Inside Train Communications
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2017)Although the deployment of wireless systems is widespread, there are still sectors where they are not used due to their lack of reliability in comparison to wired systems. Sectors like industry or vehicle communications ... -
Low speed wind tunnel design, setup. validation and testing of airfoils in turbulent inflow conditions
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2016)The present work aims to design and setup a low speed wind tunnel (LSWT) to be constructed at Mondragon Unibertsitatea for aerodynamic performance analysis of airfoils at low Re number. With this purpose, flow field ... -
Inclusive experience design: una metodología de diseño de experiencias basada en las capacidades
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2015)Technology and society are evolving towards a completely new paradigm of industrial production. In this new paradigm, products and services alone are not enough to keep being significant. Many companies like BMW, Philips, ... -
Pultrusión de perfiles 3D en base al curado UV fuera del molde y sistemas de tiro por robot
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2015)Pultrusion, the manufacturing process analysed in this research work, is one of the most automatised processes to obtain continuous profiles with high fibre volume fraction; and consequently, elevated mechanical properties. ... -
Dynamic variability support in context-aware workflow-based systems
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2015)Workflow-based systems are increasingly becomingmore complex and dynamic. Besides the large sets of process variants to be managed, process variants need to be context sensitive in order to accommodate new user requirements ...
