Listar CITEEC-ME - Artigos por título
Mostrando ítems 4-23 de 28
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Aerodynamic performance of twin-box decks: a parametric study on gap width effects based on validated 2D URANS simulations
(Elsevier, 2018)[Abstract:] 2D URANS simulations are conducted aiming to study the aerodynamic performance under smooth flow of twin-box decks depending on the gap distance between girders. The Stonecutters Bridge is taken as the reference ... -
An Open-Source Framework for Aircraft Damage Simulation in Engine Failure Events
(Elsevier, 2022)[Abstract] The aerospace industry demands designs capable of withstanding the simultaneous collapse of several structural elements. Examples of this failure scenario are propeller blade or uncontained engine rotor failures, ... -
Assessment of the Aerodynamic and Aeroelastic Performance of Long-Span Twin-Box Bridges Based upon Multidimensional Surrogate Models
(MDPI, 2024)[Abstract:] Twin-box decks are being extensively used in the design of long-span bridges due to their superior flutter performance. Although the significant role played by the gap distance has been previously addressed in ... -
Bridge deck flutter derivatives: Efficient numerical evaluation exploiting their interdependence
(Elsevier, 2015-01)Increasing the efficiency in the process to numerically compute the flutter derivatives of bridge deck sections is desirable to advance the application of CFD based aerodynamic design in industrial projects. In this article, ... -
Comparación de la seguridad al deslizamiento de seis presas españolas. Criterios de diseño empleados frente al estado del arte actual
(CSIC, 2021)[Resumen:] Se ha desarrollado y aplicado un método simplificado para reevaluar de forma más precisa la seguridad al deslizamiento en seis presas de gravedad y contrafuertes en base a los resultados de modelos lineales ... -
Crashworthiness Analysis and Enhancement of Aircraft Structures Under Vertical Impact Scenarios
(American Institute of Aeronautics and Astronautics, 2020)[Abstract] This research focuses on the crashworthiness study and enhancement of commercial aircraft structures by developing crushable energy absorbers to work as vertical struts. To assess their contribution on a ... -
Crashworthiness optimization of aircraft hybrid energy absorbers enclosing honeycomb and foam structures
(ARC (Aerospace Research Central), 2017)[Abstract:] This research proposes a new design for a vertical strut used in aircraft fuselages. It consists of a hollow aluminum vertical strut filled with a glass-fiber-reinforced polymer honeycomb-shaped structure and ... -
Crashworthiness study on hybrid energy absorbers as vertical struts in civil aircraft fuselage designs
(Taylor & Francis Online, 2019)[Abstract:] This research concerns the crashworthiness study and enhancement of commercial aircraft fuselage structures by incorporating crushable hybrid energy absorbers to work as vertical struts. To assess their ... -
Crushing analysis and multi-objective crashworthiness optimization of GFRP honeycomb-filled energy absorption devices
(Elsevier, 2014)[Abstract:] Fuel efficiency and occupant safety are two of the most important concerns in the automotive industry nowadays. Encouraged by the importance of this field of study, this research attempts an improvement in the ... -
Efficient Modal-Based Method for Analyzing Nonlinear Aerostatic Stability of Long-Span Bridges
(Elsevier, 2021)[Abstract] An efficient method for analyzing the nonlinear aerostatic stability of long-span bridges using a modal formulation is proposed. First, a simplified linear version defined as modal-based approach is introduced, ... -
Energy Absorption of Aluminium Extrusions Filled with Cellular Materials Under Axial Crushing: Study of the Interaction Effect
(MDPI, 2020)[Abstract] This investigation focuses on the interaction effect during the quasi-static axial crushing of circular and square thin-walled aluminium extrusions filled with polymeric foam or cork. The increment in the absorbed ... -
Experimental and Computational Studies on the Performance of Solar Trackers Under Vortex Shedding, Torsional Divergence, and Flutter
(WIT Press, 2020)[Abstract] The current development of renewable energies has originated a number of new structural typologies that are the physical support of the energy production systems. Photovoltaic energy is a very mature source and ... -
Experimental investigation on wind energy harvesting by aeroelastic excitation of a semi-circular cylinder with flat side parallel to the incoming flow
(WIT Press, 2021)[Abstract:] In this work, the performance of a semicircular cylinder with the flat side parallel to the incoming flow has been studied experimentally in a wind-excited energy harvester. Preliminary sectional model wind ... -
Fail-safe optimum cable system under cable breakage in cable-stayed bridges. Application to the Queensferry Crossing Bridge
(Elsevier, 2023)[Abstract:] This paper presents a methodology to optimize the cable system in cable-stayed bridges, whose main novelty is to take into account the accidental breakage of one cable within the design process. To this end, a ... -
Multi-bubble scheme and structural analysis of a hypersonic stratospheric flight vehicle
(Elsevier, 2022)[Abstract:] The STRATOFLY MR3 vehicle is the main objective of the STRATOFLY project, which aims to develop a hypersonic air breathing concept capable of covering antipodal routes in less than three hours. The aircraft ... -
Numerical simulations of the aerodynamic response of circular segments with different corner angles by means of 2D URANS. Impact of turbulence modeling approaches
(Taylor & Francis, 2018)[Abstract:] This paper presents the results of numerical and experimental investigations on the force coefficients and Strouhal numbers of circular segments considering different corner angles or chord to sagitta ratios. ... -
Optimisation of Thin-Walled Hybrid Vertical Struts for Crashworthy Aircraft Designs
(Springer, 2020)[Abstract] This research concerns the crashworthiness enhancement of a model of a Boeing 737-200 fuselage section. Using a validated numerical specimen, four thin-walled crushable hybrid energy absorbers are added to the ... -
Reliability index based strategy for the probability-damage approach in fail-safe design optimization (β-PDFSO)
(Springer Nature, 2023)[Abstract:] This research proposes a new formulation for fail-safe size optimization, considering the probability of occurrence of each failure scenario and the random structural parameters as sources of uncertainty. ... -
Semi-automated setup of CFD simulations of rectangular cylinders and streamlined box decks
(WIT Press, 2020)[Abstract:] A piece of software that acts as a Graphical User Interface (GUI) for the setup of computational fluid dynamics (CFD) models that are solved by means of the open source code OpenFOAM, is presented. The software ... -
Shape optimization of tall buildings cross-section: Balancing profit and aeroelastic performance
(Wiley, 2022)[Abstract:] Shape optimization is an effective tool to improve the aerodynamic performance of tall buildings by introducing minor modifications to the original project. Nevertheless, economic criteria demand efficient cross ...