Browsing by Subject "Dynamics"
Now showing items 1-20 of 140
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A 2.5D coupled FEM-BEM-MFS methodology for longitudinally invariant soil-structure interaction problems
(Elsevier, 2021-04)
Article
Restricted access - publisher's policyThis paper is concerned with a new prediction methodology for longitudinally invariant soil-structure interaction problems in elastodynamics. The method uses the finite-element method to model the structure, the boundary-element ... -
A direct elimination algorithm for quasi-static and dynamic contact problems
(2015-01-01)
Article
Open AccessThis paper deals with the computational modeling and numerical simulation of contact problems at Unite deformations using the Finite element method. Quasi-static and dynamic problems are considered and two particular ... -
A filtered kinetic energy preserving finite volumes scheme for compressible flows
(2012)
Conference report
Open AccessThe Kinetic Energy Preserving Scheme (KEP) for compressible flows has been shown to solve 1-D shock waves without smearing them. The method does not add numerical diffusion to solutions but, as a counterpart, it needs ... -
A new approach to the planetary N-Body Problem
(2012-03-26)
Audiovisual
Open Access -
A new approach to the planetary N-Body Problem
(2012-03-27)
Audiovisual
Open Access -
A new multisymplectic unified formalism for second order classical field theories
(American Institute of Mathematical Sciences, 2015-06-01)
Article
Open AccessWe present a new multisymplectic framework for second-order classical field theories which is based on an extension of the unified LagrangianHamiltonian formalism to these kinds of systems. This model provides a straightforward ... -
A new phylogenetic reconstruction method based on invariants
(2005)
Article
Open AccessAn attempt to use phylogenetic invariants for tree reconstruction was made at the end of the 80s and the beginning of the 90s by several authors (the initial idea due to Lake [Lake, 1987] and Cavender and Felsenstein [Cavender ... -
A structured study on the dynamic bifurcation behavior of a continuous ethanol fermentor
(2021-05)
Article
Restricted access - publisher's policyThe oscillatory behavior of a continuous fermentation reactor, in the high feed sugar concentration region (200 g/L), is analyzed using the dynamic bifurcation theory. The mathematical model was solved using the arc-length ... -
About the oscillatory possibilities of the dynamical systems
(2009-11)
Research report
Open AccessThis paper may be ultimately described as an attempt to make feasible the evolutionary emergence of novelty in a supposedly deterministic world whose behavior is associated with that of the mathematical dynamical systems. ... -
Advances in dynamics, control, monitoring and applications: proceedings on the workshop on control, dynamics, monitoring and applications
(Universitat Politècnica de Catalunya. Departament de Matemàtica Aplicada III (MA3), 2011-02)
Book
Restricted access - publisher's policy -
Ageing of an oscillator due to frequency switching
(2021-11-01)
Article
Restricted access - publisher's policyIf an oscillator is driven by a force that switches between two frequencies, the dynamics it exhibits depends on the precise manner of switching. Here we take a one-dimensional oscillator and consider scenarios in which ... -
An efficient experimental methodology for the assessment of the dynamic behaviour of resilient elements
(Multidisciplinary Digital Publishing Institute (MDPI), 2020-06-27)
Article
Open AccessThe assessment of the dynamic behaviour of resilient elements can be performed using the indirect method as described in the standard ISO 10846-3. This paper presents a methodology for control the error on the estimation ... -
Analizing exact controllability of l-order linear ystems
(WSEAS Press, 2017-05)
Article
Open AccessIn recent years there has been growing interest in the descriptive analysis of l -order time invariant linear dynamical system x l = A l system x l = A l where A i are square complex matrices and x i denotes the i-th ... -
Anàlisi del comportament de la dinàmica no lineal del ritme cardíac
(Universitat Politècnica de Catalunya, 2005-06-22)
Master thesis (pre-Bologna period)
Open AccessL’anàlisi de la variabilitat del ritme cardíac (VRC) o Heart Rate Variability (HRV) proporciona informació important sobre el funcionament del sistema cardiovascular. L’objectiu d’aquest treball és millorar el coneixement ... -
Anàlisi del comportament dinàmic d'un aerogenerador flotant offshore
(Universitat Politècnica de Catalunya, 2012-06-29)
Minor thesis
Open Access[ANGLÈS] The overall trend of the wind energy industry to the off shore sector requires the study of new technologies for exploiting these renewable energy sources. The installation of wind farms in deeper water to improve ... -
Application of the forces' method in dynamic systems
(2007-10-11)
Article
Open AccessWe present here some applications of the Forces's method in dynamic systems. In particular, we consider the problem of the approximation of the trajectories of a conservative system of point masses by means of the minimization ... -
Aprovechamiento de la energía producida en sesiones de spinning
(Universitat Politècnica de Catalunya, 2019-10-09)
Bachelor thesis
Restricted access - author's decisionEn el presente documento se diseña un sistema de transformación de la energía cinética que se produce durante una sesión de spinning en energía eléctrica, proporcionando así una alternativa respetuosa con el medio ambiente ... -
Ámbitos dinámicos: de cómo la tectónica cede paso a los agenciamientos
(Centre de Politica de Sol i Valoracions, CPSV / Universitat Politècnica de Catalunya, UPC, 2020-02)
Article
Open AccessA partir de una perspectiva dinámica de la realidad surge esta investigación, cuyo propósito es determinar cómo la tectónica del espacio arquitectónico cede paso a los procesos espaciales que, imprimen características ... -
Big-bang bifurcations in a first order system with a relay
(2011)
Conference report
Restricted access - publisher's policyIn this work we describe the bifurcation scenario found in a general first order system when a relay based proportional control is considered. We show the existence of a big bang bifurcation causing the existence of an ... -
Cálculo de probabilidades en el análisis de perfiles genéticos compatibles
(Institut d'estadística de Catalunya, 2000)
Article
Open Access