Exploració per tema "Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica::Vibracions mecàniques"
Ara es mostren els items 1-20 de 107
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A hybrid methodology for the assessment of railway-induced ground-borne noise and vibration in buildings based on experimental measurement in the ground surface
(Sociedad Española de Acústica, 2019)
Text en actes de congrés
Accés restringit per política de l'editorialIn this paper, a hybrid experimental/numerical methodology for the assessment of railwayinduced ground-borne noise and vibration in buildings based on experimental measurement in the ground surface is presented. This ... -
A mathematical model to study railway track dynamics for the prediction of vibration levels generated by rail vehicles
(2012-01)
Article
Accés obertThis article presents a mathematical model aimed at predicting wheel–rail contact vibration force arising from wheel profile irregularities. Prediction of vibrations caused by a passing train is a basic factor in environmental ... -
A numerical and scaled experimental study on ride comfort enhancement of a high-speed rail vehicle through optimizing traction rod stiffness
(SAGE PUBLICATIONS INC, 2021)
Article
Accés obertIn this research, the effect of rail vehicle carbody’s flexural modes on the ride comfort of an example high-speed railway vehicle is investigated. The vehicle is modeled as a rigid multi-body system, where the rigid body ... -
A pile–soil interaction model for ground-borne vibration problems based on the singular boundary method
(Elsevier, 2024-01-06)
Article
Accés restringit per política de l'editorialAn efficient three-dimensional approach for solving pile–soil interaction problems is proposed. In the approach, the soil is modelled as an elastic half-space, and its response in the presence of the pile’s corresponding ... -
Acelerómetros y sensores de vibración
(2010-04)
Article
Accés restringit per política de l'editorial -
An experimental exploration of the properties of random frequency response functions
(2021-01)
Article
Accés obertThe vibro-acoustic analysis of complex structures over a broadband frequency range is an extremely challenging problem that may often require the use of a hybrid deterministic-statistical approach. Due to manufacturing ... -
An experimental/numerical hybrid methodology for the prediction of railway-induced ground-borne vibration on buildings to be constructed close to existing railway infrastructures: Numerical validation and parametric study
(Elsevier, 2021-11-01)
Article
Accés obertA novel experimental/numerical hybrid methodology for the assessment of railway-induced ground-borne vibration in buildings based on experimental measurements in the soil surface is proposed in this paper. This methodology ... -
Analysis of roughness, force and vibration signals in ball-end milling processes
(2015)
Text en actes de congrés
Accés obertIn the present paper, roughness, force and vibration signals from ball-end milling processes are analysed. From the roughness signal actual feed value was obtained as expected. From the force and vibration signals both the ... -
Analytical and numerical investigations on a 2-DOF system with variable damping
(Universitat Politècnica de Catalunya / Technishe Universität Darmstadt, 2008)
Projecte/Treball Final de Carrera
Accés restringit per acord de confidencialitat -
Anàlisi de vibracions amb un equip de simulació de faltes
(Universitat Politècnica de Catalunya, 2006-07)
Projecte/Treball Final de Carrera
Accés restringit per decisió de l'autorEste proyecto está encarado a realizar un catalogo de las distintas señales de vibraciones que emiten los elementos rodantes de un motor o de cualquier máquina con elementos rotatorios la cual pueda emitir señales de ... -
Anàlisi de vibracions en bancades per a proves de motors
(Universitat Politècnica de Catalunya, 2015)
Treball Final de Grau
Accés obertTrobar un mètode senzill i compatible amb les eines de les que disposa l’empresa, per analitzar els efectes de les vibracions causades pels motors alternatius de combustió interna en els bancs de proves. I així poder-ne ... -
Análisis de vibraciones en máquinas rotativas : Caso práctico de dos bombas de GPL
(Universitat Politècnica de Catalunya, 2010-03)
Projecte/Treball Final de Carrera
Accés restringit per decisió de l'autor -
Assessment of dynamic vibration absorber efficiency as a countermeasure for ground-borne vibrations induced by train pass-by in double-deck tunnels using an energy flow criterion
(2019)
Text en actes de congrés
Accés restringit per política de l'editorialThe environmental problems due to ground-borne vibrations induced by underground railway traffic are an issue of growing concern in urban areas as the demand for underground railway network has been increased. The demand ... -
Assessment of dynamic vibration absorbers efficiency as a countermeasure for ground-borne vibrations induced by train traffic in double-deck tunnels using an energy flow criterion
(Springer, 2019)
Text en actes de congrés
Accés restringit per política de l'editorialDouble-deck tunnels are an innovative tunnel layout design useful to enhance the efficiency of underground railway transportation systems in which the tunnel is divided into two sections by an interior floor. However, ... -
Automatic subsystem identification in statistical energy analysis
(2015-03)
Article
Accés obertAn automatic methodology for identifying SEA (statistical energy analysis) subsystems within a vibroacoustic system is presented. It consists in dividing the system into cells and grouping them into subsystems via a ... -
Axisymmetric vibrations of a circular Chladni plate in air and fully submerged in water
(2018-10-10)
Article
Accés obertIn this study, experimental and numerical analyses were performed to determine the effects of water loading on the axisymmetric modes of vibration of a circular plate. The plate was harmonically excited at its centre through ... -
Banc didàctic de diagnòstic de màquines per anàlisi de vibracions
(Universitat Politècnica de Catalunya, 2008-11)
Projecte/Treball Final de Carrera
Accés obertL’objectiu d’aquest projecte és dissenyar un banc didàctic de diagnòstic de màquines que permeti simular defectes en components de màquines, que puguin ser diagnosticats mitjançant la mesura i l’anàlisi de les vibracions ... -
Bearings fault detection using inference tools
(In-Tech, 2011-09)
Capítol de llibre
Accés obertThe most used electric machine in the industry is the Induction Motor (IM), due to its simplicity and reduced cost. The analysis of the origin of IMs failures exhibits that the bearings are the major source of fault, and ... -
Caracterización de señales de vibración no estacionarias en el dominio conjunto tiempo-frecuencia
(2011)
Text en actes de congrés
Accés restringit per política de l'editorialEl monitoreo de las condiciones de vibración es comúnmente utilizado para incrementar la disponibilidad de las maquinas en general, reduciendo consecuentemente los daños o fallas en las mismas, incrementar su vida útil, ... -
Catalogue of vibration reduction index formulas for heavy junctions based on numerical simulations
(2017-07)
Article
Accés obertThe vibration reduction index (Kij) is a key parameter in the prediction of flanking transmissions according to the EN-12354 standard. Formulas for the evaluation of Kij in L, T and X junctions that depend on the mass ratio ...