Exploració per tema "Cilindres"
Ara es mostren els items 1-20 de 26
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A simplified methodology to evaluate the design specifications of hydraulic components
(Multidisciplinary Digital Publishing Institute, 2018-09-11)
Article
Accés obertThe fatigue of a hydraulic component inherently varies due to various factors that can be divided into two categories: structural and load spectrum variability. The effects of both variabilities must be considered when ... -
Aspect ratio influence on the vortex induced vibrations of a pivoted finite height cylinder at low Reynolds number
(2023-08-10)
Article
Accés obertThe effect of the aspect ratio on the vortex induced vibrations (VIV) of a pivoted finite length circular cylinder is investigated. A fixed value of the Reynolds number Re = 100 with four values of the aspect ratio ... -
Bennet's Linkage and the Cylindroid
(2002)
Article
Accés obertBennett’s linkage is a spatial 4R closed chain that can move with one degree of freedom. The set of relative displacement screws that form the one-dimensional workspace of this device defines a ruled surface known as a ... -
Bond graph simulation of error propagation in position estimation of a hydraulic cylinder using low cost accelerometers
(2018-10-01)
Article
Accés obertThe indirect calculation from acceleration of transversal displacement of the piston inside the body of a double effect linear hydraulic cylinder during its operating cycle is assessed. Currently an extensive effort exists ... -
Capacidad de carga de cilindros oleohidráulicos
(Universitat Politècnica de Catalunya, 2006-12-12)
Tesi
Accés obertEsta tesis está relacionada con un proyecto macro cuyo título es "New design and manufacturing processes for high pressure fluid power products" -2004-2008 (acrónimo: PROHIPP), el cual es cofinanciado por la Unión Europea ... -
Characteristic spanwise length scales of streamwise vortical structures in the wake of a circular cylinder at Re = 1500 measured via global and local approaches
(Elsevier, 2023-01-30)
Article
Accés restringit per política de l'editorialWake characteristics of the flow past a circular cylinder are analysed in detail at Reynolds number Re = 1500 via direct numerical simulation. A periodic spanwise domain of length 1.5pD has been found to yield correct ... -
Disseny d’un sistema hidràulic pel control simultani de dos actuadors situats a gran distància
(Universitat Politècnica de Catalunya, 2013-02)
Projecte/Treball Final de Carrera
Accés obert -
Enumeration and limit laws of dissections on a cylinder
(2010-09-28)
Article
Accés obertWe compute the generating function for triangulations on a cylinder, with the restriction that all vertices belong to its boundary and that the intersection of a pair of different faces is either empty, a vertex or an edge. ... -
Estudi numèric-experimental de la interacció fluid-estructura d'un cilindre sota un flux d'aire
(Universitat Politècnica de Catalunya, 2022-10-24)
Treball Final de Grau
Accés obertL’estudi de la interacció fluid-estructura (FSI) d’un cilindre circular recte i elàstic disposat en vertical i en voladís sotmès a flux d’aire creuat constant i uniforme s’ha realitzat tant experimentalment com numèricament ... -
Estudi numèric-experimental de la interacció fluid-estructura d'un tàndem de dos cilindres sota un flux d'aire
(Universitat Politècnica de Catalunya, 2022-07-15)
Treball Final de Grau
Accés obertLa interacció fluid-estructura (FSI) computacional dona lloc a una gran varietat de fenòmens físics amb nombroses aplicacions en diverses branques de l’enginyeria, incloent-hi l’aeroespacial. La finalitat d’aquest estudi ... -
Estudio del comportamiento dinámico de un actuador lineal para mini-cargadoras
(Universitat Politècnica de Catalunya, 2017-06-10)
Treball Final de Grau
Accés restringit per decisió de l'autor
Realitzat a/amb: Roquet HydraulicsL'objectiu bàsic del TFG és l'estudi del comportament fluid-mecánio d'un cilindre hidràulic quan arriba al final de carrera. -
Fatigue analysis of a double effect hydraulic cylinder
(Universitat Politècnica de Catalunya, 2022-05-20)
Treball Final de Grau
Accés restringit per acord de confidencialitatDes dels inicis de la humanitat, la hidràulica ha ajudat l'ésser humà a evolucionar i realitzar alguns dels treballs més exigents. El component hidràulic bàsic és el cilindre de doble efecte, est, és present en la majoria ... -
Hybrid computation of the aerodynamic noise radiated by the wake of a subsonic cylinder
(Multidisciplinary Digital Publishing Institute (MDPI), 2023-08-21)
Article
Accés obertThe noise radiated by the flow around a cylinder in the subcritical regime at 𝑅𝑒𝐷=1×104 and at a subsonic Mach number of 𝑀=0.5 is here studied. The aerodynamic sound radiated by a cylinder has been studied with a ... -
Implementació del procediment d'assaig i certificació de components d'actuació d'un sistema de fre hidràulic d'un vehicle de turisme
(Universitat Politècnica de Catalunya, 2018-07-02)
Treball Final de Grau
Accés restringit per decisió de l'autor
Realitzat a/amb: Applus+ IDIADA -
Influence of rotation on the flow over a cylinder at Re=5000
(2015-10-15)
Article
Accés restringit per política de l'editorialThe influence of the rotation ratio on the forces acting on a circular cylinder at Re ¼ 5000 has been investigated by means of direct numerical simulations (DNS). Spin ratios in the range 0-5 have been considered. The ... -
Influence of rotation on the flow over cylinder at RE=5000
(2014)
Text en actes de congrés
Accés obert -
Low-frequency unsteadiness in the vortex formation region of a circular cylinder
(2013-08-23)
Article
Accés obertThe presence of low-frequency fluctuations in the wake of bluff bodies have been observed in several investigations. Even though the flow past a circular cylinder at Re = 3900 (Re = U ref D/ν) has been the object of several ... -
Natural convection in a laterally heated cylindrical enclosure
(Universitat Politècnica de Catalunya, 2011-02-04)
Projecte Final de Màster Oficial
Accés obertA numerical study on the natural convection of small Prandtl number fluid in a cylindrical enclosure with lateral heating has been performed by a combination of second order time-splitting and pseudo –spectral methods. The ... -
Numerical study of flow past circular cylinder in sub-critial range
(Universitat Politècnica de Catalunya, 2014-02)
Projecte/Treball Final de Carrera
Accés obertThe present work discusses the validity of the 2D circular cylinder problem in sub-critical range solved with URANS approach. Fluent is used as the numerical software and results are compared in the context of previous ... -
On the Characteristics of the Super-Critical Wake behind a Circular Cylinder
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-11-03)
Article
Accés obertThe flow topology of the wake behind a circular cylinder at the super-critical Reynolds number of Re=7.2×105 is investigated by means of large eddy simulations. In spite of the many research works on circular cylinders, ...