Recursos de colección

Archivo Digital UPM (121.743 recursos)

This is an institutional repository providing access to the research output of the institution. Primarily contains thesis.

Materia = Aeronáutica

Mostrando recursos 1 - 20 de 96

  1. Implementation of Concurrent Engineering in MUSE (Master in Space Systems) Master's degree in space engineering

    Roibás-Millán, Elena; Sorribes Palmer, Félix; Cubas Cano, Javier; Pindado Carrion, Santiago; Chimeno Manguan, Marcos; Alonso, Gustavo; Sanz Andres, Angel Pedro; Pérez Álvarez, Javier; Franchini Longhi, Sebastian Nicolas; Pérez Grande, María Isabel
    In September 2017, the second-year students of the Master’s Degree in Space Systems (MUSE) from Universidad Politécnica de Madrid (UPM) had the opportunity to participate in the 1st ESA Academy Concurrent Engineering Challenge, organized by ESA Academy’s Training and Learning Centre, together with Politecnico Di Torino (Italy), University of Strathclyde (United Kingdom) and ESA Academy (Belgium) students. The four-day challenge was focused on the Phase-0 design of a space mission fully developed based on a Concurrent Engineering (CE) approach. The UPM team design was conducted within the Concurrent Design Facility (CDF) of the Instituto Universitario de Microgravedad ‘Ignacio Da Riva’...

  2. Simulación de respuesta dinámica de placas en alta frecuencia mediante SEA

    Ledo López, Guillermo
    El estudio del comportamiento dinámico de una estructura y la transmisión de ruidos son temas de gran importancia en muchos sectores de la ingeniería. En las etapas iniciales de diseño de una estructura fija o un vehículo, disponer de una primera estimación de los niveles de ruido que se producen bajo las cargas de trabajo puede suponer una gran ventaja, lo cual requiere métodos analíticos específicos. Uno de los métodos más extendidos para predecir la transmisión de vibraciones en estructuras complejas es el Análisis Estadístico de Energías, o SEA por sus siglas en inglés, utilizado en un gran número de aplicaciones...

  3. Estimación de la distribución de la velocidad de los choques con basura espacial

    Ocaña Losada, Samuel
    El gran incremento que ha sufrido la población de basura espacial a lo largo de la carrera espacial ha provocado que actualmente muchas de las misiones activas en torno a la tierra estén en grave riesgo. La pasividad en el pasado frente a este problema a empeorado la situación. Aunque actualmente ya se han empezado a implementar medidas para atenuarlo, éstas solo tendrán un efecto significativo a largo plazo. Es por esta razón que se necesitan métodos para proteger los satélites operativos de la basura espacial, especialmente en órbitas bajas que es donde se encuentra la mayor concentración de basura....

  4. First observations of speed of light tracks by a fluorescence detector looking down on the atmosphere

    Abdellaoui, G.; Abe, S.; Adams, J.H.; Ahriche, A.; Allard, D.; Allen, L.; Alonso, Gustavo; Anchordoqui, L.; Anzalone, A.; Arai, Y.; Asano, K.; Attallah, R.; Attoui, H.; Ave Pernas, M.; Bacholle, S.; Bakiri, M.; Baragatti, P.; Barrillon, P.; Bartocci, S.; Bayer, J.; Beldjilali, B.; Belenguer, T.; Belkhalfa, N.; Bellotti, R.; Belov, A.; Belov, K.; Benmessai, K.; Bertaina, M.; Biermann, P.L.; Biktemerova, S.; Bisconti, F.; Blanc, N.; Blecki, J.; Blin-Bondil, S.; Bobik, P.; Bogomilov, M.; Bozzo, E.; Bruno, A.; Caballero, K.S.; Cafagna, F.; Campana, D.; Cafagna, F.; Campana, D.; Capdevielle, J.-N.; Capel, F.; Caramete, A.; Caramete, L.; Carlson, P.; Caruso, R.; Casolino, M.; Cassardo, C.; Castellina, A.; Catalano, C.; Catalano, O.; Cellino, A.; Chikawa, M.; Chiritoi, G.; Christl, M.J.; Connaughton, V.; Conti, L.; Cordero, G.; Cotto, G.; Crawford, H.J.; Cremonini, R.; Csorna, S.; Cummings, A.; Dagoret-Campagne, S.; Donato, C. de; Taille, C. de la; Santis, C. De; Peral, L. del; Martino, M. Di; Diaz Damian, A.; Djemil, T.; Dutan, I.; Ebersoldt, A.; Ebisuzaki, T.; Engel, R.; Eser, J.; Fenu, F.; Fernández-González, S.; Fernández-Soriano, J.; Ferrarese, S.; Flamini, M.; Fornaro, C.; Fouka, M.; Franceschi, A.; Franchini, Sebastian Nicolás; Fuglesang, C.; Fujii, T.; Fujimoto, J.; Fukushima, M.; Galeotti, P.; García-Ortega, E.; Garipov, G.; Gascon, E.; Genci, J.; Giraudo, G.; González Alvarado, C.; Gorodetzky, P.; Greg, R.; Guarino, F.; Guzmán, A.; Hachisu, Y.; Haiduc, M.; Harlov, B.; Haungs, A.; Hernández Carretero, J.; Hidber Cruz, W.; Ikeda, D.; Inoue, N.; Inoue, S.; Isgrò, F.; Itow, Y.; Jammer, T.; Jeong, S.; Joven, E.; Judd, E.G.; Jochum, J.; Kajino, F.; Kajino, T.; Kalli, S.; Kaneko, I.; Karadzhov, Y.; Karczmarczyk, J.; Katahira, K.; Kawai, K.; Kawasaki, Y.; Kedadra, A.; Khales, H.; Khrenov, B.A.; Kim, Jeong-Sook; Kim, Soo-Hyung; Kleifges, M.; Klimov, P.A.; Kolev, D.; Krantz, H.; Kreykenbohm, I.; Kudela, K.; Kurihara, Y.; Kusenko, A.; Kuznetsov, E.; La Barbera, A.; Lachaud, C.; Lahmar, H.; Lakhdari, F.; Larson, R.; Larsson, O.; Lee, J.; Licandro, J.; López Campano, L.; Maccarone, M.C.; Mackovjak, S.; Mahdi, M.; Maravilla, D.; Marcelli, L.; Marcos, J.L.; Marini, A.; Martens, K.; Martín, Y.; Martínez, O.; Martucci, M.; Masciantonio, G.; Mase, K.; Mastafa, M.; Matev, R.; Matthews, J.N.; Mebarki, N.; Medina-Tanco, G.; Mendoza, M.A.; Menshikov, A.; Merino, A.; Meseguer, J.; Meyer, S.S.; Mimouni, J.; Miyamoto, H.; Mizumoto, Y.; Monaco, A.; Morales de los Ríos, J.A.; Moretto, C.; Nagataki, S.; Naitamor, S.; Napolitano, T.; Naslund, W.; Nava, R.; Neronov, A.; Nomoto, K.; Nonaka, T.; Ogawa, T.; Ogio, S.; Ohmori, H.; Olinto, A.V.; Orleański, P.; Osteria, G.; Pagliaro, A.; Painter, W.; Panasyuk, M.I.; Panico, B.; Pasqualino, G.; Parizot, E.; Park, I.H.; Pastircak, B.; Patzak, T.; Paul, T.; Pérez Grande, María Isabel; Perfetto, F.; Peter, T.; Picozza, P.; Pindado Carrion, Santiago; Piotrowski, L.W.; Piraino, S.; Placidi, L.; Plebaniak, Z.; Pliego, S.; Pollini, A.; Polonski, Z.; Popescu, E.M.; Prat, P.; Prévôt, G.; Prieto, H.; Puehlhofer, G.; Putis, M.; Rabanal, J.; Radu, A.A.; Reyes, M.; Rezazadeh, M.; Ricci, M.; Rodríguez Frías, M.D.; Rodencal, M.; Ronga, F.; Roudil, G.; Rusinov, I.; Rybczyński, M.; Sabau, M.D.; Sáez Cano, G.; Sagawa, H.; Sahnoune, Z.; Saito, A.; Sakaki, N.; Salazar, H.; Sanchez Balanzar, J.C.; Santangelo, A.; Sanz Andres, Angel Pedro; Sanz Palomino, M.; Saprykin, O.; Sarazin, F.; Sato, M.; Schanz, T.; Schieler, H.; Scotti, V.; Selmane, S.; Semikoz, D.; Serra, M.; Sharakin, S.; Shimizu, H.M.; Shinozaki, K.; Shirahama, T.; Spataro, B.; Stan, I.; Sugiyama, T.; Supanitsky, D.; Suzuki, M.; Szabelski, B.; Tajima, N.; Takahashi, Y.; Takami, H.; Takeda, M.; Takizawa, Y.; Talai, M.C.; Tenzer, C.; Thomas, S.B.; Tibolla, O.; Tkachev, L.; Tokuno, H.; Tomida, T.; Tone, N.; Toscano, S.; Traïche, M.; Tsenov, R.; Tsunesada, Y.; Tsuno, K.; Tubbs, J.; Turriziani, S.; Uchihori, Y.; Vaduvescu, O.; Valdés Galicia, J.F.; Vallania, P.; Vankova, G.; Vigorito, C.; Villaseñor, L.; Vlcek, B.; Ballmoos, P. von; Vrabel, M.; Wade, S.; Watanabe, J.; Watts, J.; Weber, M.; Weigand Muñoz, M.; Weindl, A.; Wiencke, L.; Wille, M.; Wilms, J.; Wlodarczyk, Z.; Yamamoto, T.; Yang, J.; Yano, H.; Yashin, I.V.; Yonetoku, D.; Yoshida, S.; Young, R.; Zgura, I.S.; Zotov, M.Yu.; Zuccaro Marchini, A.
    EUSO-Balloon is a pathfinder mission for the Extreme Universe Space Observatory onboard the Japanese Experiment Module (JEM-EUSO). It was launched on the moonless night of the 25th of August 2014 from Timmins, Canada. The flight ended successfully after maintaining the target altitude of 38 km for five hours. One part of the mission was a 2.5 hour underflight using a helicopter equipped with three UV light sources (LED, xenon flasher and laser) to perform an inflight calibration and examine the detectors capability to measure tracks moving at the speed of light. We describe the helicopter laser system and details of...

  5. Assessment of explicit models for different photovoltaic technologies

    Pindado Carrion, Santiago; Cubas Cano, Javier; Roibás Millán, Elena; Bugallo Siegel, Francisco J.; Sorribes Palmer, Felix
    Accurate and simple mathematical models are usually required to assess the performances of photovoltaic devices. In particular, it is common practice to use explicit models to evaluate the current–voltage (I–V) performance curves, mainly based on simple analytical expressions that enable the parameters determination with a little computational effort. Six different explicit photovoltaic models (i.e., explicit I–V equations) by different authors (Akbaba & Alattawi; El-Tayyan; Karmalkar & Haneefa; Das/Saetre et al.; Das; and Pindado & Cubas) are analyzed and compared. This comparison is carried out by fitting these models to eight I–V curves for different technologies, including Si, Si polycrystalline, Ga–As,...

  6. Towards an airfoil catalogue for wind turbine blades at IDR/UPM Institute with OpenFOAM

    Sorribes Palmer, Félix; Donisi, L.; Pindado Carrion, Santiago; Gómez Ortega, O.; Ogueta Gutiérrez, Mikel
    A methodology to efficiently simulate wind tunnel tests of several airfoils with OpenFOAM has been developed in this work. This methodology bridges OpenFOAM capabilities with MATLAB post-processing in order to analyze efficiently the performance of wind turbine airfoils at any angle of attack. This technique has been developed to reduce the cost, in terms of time and resources, of wind tunnel campaigns on wind turbine blade airfoils. Different turbulence models were used to study the behavior of the airfoils near stall. Wind turbine airfoils need to be characterized for all possible angles of attack, in order to reproduce the real...

  7. Estudio de la combustión en un motor CFR con AVL BOOST

    Fonseca González, Natalia Elizabeth; Casanova Kindelán, Jesús; Garrido López, Esther
    Este trabajo es relevante en el ámbito del desarrollo de nuevos combustibles para el transporte. Se trata de estudiar los parámetros de la combustión de diferentes combustibles en condiciones variables de dosado, relación de compresión y avance al encendido en un motor de encendido provocado CFR, de relación de compresión variable para medida de Número de Octano pero adaptado para investigación. Para ello se desarrolló un modelo de simulación del motor real en el programa AVL Boost, se validó con datos experimentales y se desarrolló una metodología para la parametrización del comportamiento de los combustibles en las diferentes condiciones de...

  8. Aerodynamics of Axisymmetric Counterflowing Jets

    Carpio Huertas, Jaime; Liñán Martínez, Amable; Sánchez, Antonio L.; Williams, Forman A.
    The laminar flow resulting from impingement of two steadily fed low-Mach-number gaseous jets issu- ing into a stagnant atmosphere from coaxial cylindrical ducts at moderately large Reynolds numbers,often used in combustion experiments, is studied through numerical integrations of the Navier-Stokes equations. In the Reynolds-number range addressed, [50,1000], the flow of the approaching jets is nearlyinviscid, with viscous effects and mixing being restricted to the thin mixing layers surrounding the jetsand to a thin layer located at the separating stream surface. The analysis of the main inviscid flow showsthat only two parameters, based on the scales associated with the radius and...

  9. Diseño preliminar de un aerogenerador de 20 MW de potencia

    Rodríguez Mitre, Alberto
    El objeto del presente proyecto es la realización de un diseño preliminar conceptual de un aerogenerador de 20 MW de potencia, emplazado en tierra con ciertas condiciones de viento y restricciones de ruido. Para ello, se realiza un dimensionado en tamaño y materiales; se efectúan estudios aerodinámicos, de cargas, vibraciones y materiales; se analizan también distintas alternativas del sistema eléctrico y de control; y se dispone finalmente de una estimación de costes de construcción y operación, a partir de la cual se extraen conclusiones sobre la viabilidad del aerogenerador diseñado.

  10. Single-axis Ultrasonic Anemometer in Rotational Motion

    Ghaemi-Nasab, Mohsen
    Los anemómetros ultrasónicos son instrumentos modernos para la medida exacta de la velocidad del viento que se han utilizado extensamente en aplicaciones meteorológicas e industria de la energía eólica. A pesar de su extendida aplicación es cada vez mayor, ya se han prestado poca atención a los anemómetros ultrasónicos giratorios de eje único que pueden medir con precisión tanto la velocidad del viento como su dirección en un aparato único y robusto. Recientemente, se emplean en plataformas móviles tales como es el caso de los aerogeneradores. Esto requiere un proceso de calibración exacto y correcto para corregir las señales de...

  11. Airfoil catalogue for wind turbine blades with OpenFOAM

    Dionisi, Lorenzo; Sorribes Palmer, Félix; Pindado Carrion, Santiago; Figueroa, Antonio; Franchini, Sebastian Nicolás; Ogueta-Gutierrez, Mikel; Pérez-Álvarez, Javier; Gómez Ortega, Omar
    A methodology to efficiently simulate wind tunnel tests of several airfoils with OpenFOAM has been developed in this work. This methodology bridges OpenFOAM capabilities with Matlab postprocessing to analyse efficiently the performance of wind turbine airfoils at any angle of attack. This technique has been developed to reduce the cost, in terms of time and resources, of wind tunnel campaigns on wind turbine blade airfoils. Different turbulence models were used to study the behaviour of the airfoils near stall. Wind turbine airfoils need to be characterized for all possible angles of attack, in order to reproduce the real aerodynamic patterns...

  12. Project‑based learning applied to spacecraft power systems: a long‑term engineering and educational program at UPM University

    Pindado Carrion, Santiago; Cubas Cano, Javier; Roibás-Millán, Elena; Sorribes Palmer, Félix
    The IDR/UPM Institute is the research center responsible for the Master in Space Systems (MUSE) of Universidad Politécnica de Madrid (UPM). This is a 2-year (120 ECTS) master’s degree focused on space technology. The UPMSat-2 satellite program has become an excellent educational framework in which the academic contents of the master are trained through project-based learning and following a multidisciplinary approach. In the present work, the educational projects developed and carried out in relation to spacecraft power systems at the IDR/UPM Institute are described. These projects are currently being developed in the framework represented by the aforementioned MUSE master’s program and UPMSat-2.

  13. Vibration-based method for damage detection at welded beams and rods

    Garcia-fogeda Nuñez, Pablo; Salgado Sanchez, P.; Lopez Negro, P.
    In this work, a vibration-based method for damage detection at welded beams and rods is presented. The model of the structural element includes the effect of the added inertia due to the welding process. Two methods of solution, analytically and by means of the Finite Element Method (FEM), are presented. From the results obtained it can be asseverated that the method can be a useful tool to detect degradation of welded structures. In contrast to other existing methods for cracks detection, it is shown that several frequencies have to be taken into consideration to determine the wear characteristics of the welded elements,...

  14. Material elastic waves test exploitation in benefit of composite structure health monitoring

    Lozano Martín, Ángel; Marcos García, Rodrigo; García Alonso, Jaime; Fernández López, Antonio; Iglesias, Manuel; Gümes Gordo, Alfredo
    Composite structures suffer from an unsatisfactory behavior to impact damage, which involves conservative designs, high maintenance and repair costs in order to prevent premature failures. These time-consuming operations can be optimized by SHM techniques. In the case study presented, a 48 PZT sensing network has been integrated within two similar composite panels, representative of real aeronautical structures and multi-functional skin concept, approximate size 600mm width and 1650mm length, with substrate made of carbon fiber and thermoset matrix, with two integrated hat stiffeners along the longitudinal direction, and transverse C metallic stiffeners. This sensors network may be used by both active...

  15. Free-edge delamination location and growth montoring with an embedded distributed fiber optic network

    Díaz-Maroto, Patricia; Fernández López, Antonio; Larrañaga, Beatriz; Güemes Gordo, Jesús Alfredo
    Delamination is the most characteristic damage found in composite materials. Low velocity impacts may lead to delamination onset, likely to occur during manufacturing processes or in operating service life.Furthermore, areas near the free-edge of the structures,as well as ply drop off and integrated reinforcements have demonstrate a high vulnerability to impacts. This paper focuses on the delamination detection based on an embedded or fixed fiber optic network in a composite laminate. The sensor network uses the Rayleigh scattering through an Optical Backscatter Reflectometer (OBR)that it obtains a continuous strain monitoring on a bare opical fiber. For this purpose, several optical...

  16. Environmental effect compensation for damage detection in structures using artificial neural networks and chirplet transform

    García Alonso, Jaime; Fernández López, Antonio; González Requena, Ignacio; Gümes Gordo, Alfredo
    One of the open problems to implement Structural Health Monitoring techni ques based on guided waves in real structures is the interference of the environme ntal effects in the damage diagnosis problem. This paper deals with the compensation of one of the envir onmental effects, the temperature. It is well known that the guided wave form is modified by temperature variation and causes errors in damage diagnosis. This happens because the waveform has an influence due to temperature changes of the same order tan he damage presence, which makes difficult to separate both effects in order to avoid false positives....

  17. Numerical study of effect of wall heating conditions on heat transfer performance of internal cooling channel

    Wang, Zhi; Corral Garcia, Roque
    This paper investigates the impacts of wall heating conditions on heat transfer performace for a rotating channel with one side smooth and one side roughened by 45 degree inclined ribs. Previous experimental and numerical studies for only ribbed wall heated case showed that rotation has significantly negative impact on heat transfer performance. In order to investigate this uncommon behaviour, RANS simulations were conducted under three different wall heating conditions in present study: ribbed wall heated, all walls heated and adiabatic conditions. Numerical results show that the uneven wall heating condtions has negligible impact on stationary case, however, it has a...

  18. Effect of uneven wall heating conditions under different buoyancy numbers for a one side rib-roughened rotating channel

    Wang, Zhi; Corral Garcia, Roque
    Abstract This paper investigates the impacts of uneven wall heating conditions under different Buoyancy numbers on flow field and heat transfer performance of a rotating channel with one side smooth and one side roughened by 45 degree inclined ribs. Parametric RANS simulations were conducted under two different wall heating conditions: only ribbed wall heated, as in experiment setup, and all walls heated, under three different Buoyancy numbers. Results are compared, when available, with experimental results. Abstract Numerical results show that uneven wall heating has only a minor impact on non-rotating cases and very low buoyancy rotating cases. However, it has...

  19. The adaptation of sustainable biojet fuels and its effect on aircraft engine maintenance

    Noh, H. Mohd; Alonso Rodrigo, Gustavo; Rahman, N. A. Abdul
    Aviation industries are looking into several resources for renewable and sustainable energy. Among those attention is focused in biojet fuel. This paper engages the issue of biojet fuel emissions that increase the environmental concern in the air transport sector. The paper presents the use of biojet fuel and its effect on aircraft engine maintenance through preliminary data collections, and a review of its development process in operations for time and goal. As conclusion, airlines management needs to adapt and adopt the transition to alternative fuels, especially given the global biofuel trend emerging due to the authority approval.

  20. Mixed CFD-1D wind turbine diffuser design optimization

    Sorribes Palmer, Felix; Sanz Andres, Angel Pedro; Ayuso Moreno, Luis Manuel; Sant Palma, Rodolfo; Franchini Longhi, Sebastian Nicolas
    A method to design a diffuser augmented wind turbine (DAWT) is proposed, using as a guiding point the optimal pressure drop at the turbine. The use of concepts and expressions derived from a 1D analytic model helped to reduce the number of computational fluid dynamics simulations needed to find the optimal configuration. The proposed configuration can extract energy from the flow with the same efficiency as the state-of-the-art shrouded wind turbine (SWT) configurations but generating a significantly smaller wake, which makes this configuration a good candidate for wind farms or tidal applications. Furthermore, as a product of the 1D model,...

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