Author profile: Freire Macías, Emilio
Institutional data
Name | Freire Macías, Emilio |
Department | Matemática Aplicada II |
Knowledge area | Matemática Aplicada |
Professional category | Profesor Emérito |
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No. publications
44
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7610
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Publications |
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Article
The role of dynamic friction in the appearance of periodic oscillations in mechanical systems
(Springer, 2024)
This article investigates the appearance of periodic mechanical oscillations associated with the transition between static ... |
Article
The dependent coordinates in the linearization of constrained multibody systems: Handling and elimination
(Elsevier, 2024)
In this paper, the handling of the dependent coordinates in the linearization of constrained multibody systems is clarified. ... |
Article
An electric kickscooter multibody model: equations of motion and linear stability analysis
(Springer, 2024)
In this work, a detailed multibody model of an electric kickscooter is presented. The model includes toroidal wheels as ... |
Article
Analytical and numerical stability analysis of a toroidal wheel with nonholonomic constraints
(Springer, 2024)
In this paper, a detailed and comprehensive linear stability analysis of a rolling toroidal wheel is performed. The wheel ... |
PhD Thesis
Modelling and linear stability analysis of highly mobile nonholonomic multibody systems
(2023)
This PhD thesis aims to develop a methodology that contributes to the modelling of nonholonomic multibody systems, the ... |
Article
An efficient and accurate linearization approach for hydraulically actuated multibody systems with holonomic and nonholonomic constraints
(Springer, 2023)
Hydraulics is often used to actuate mechanisms in the applications of heavy machinery. In this work, a linearization ... |
Article
Hopf bifurcation at infinity in 3D Relay systems
(Elsevier, 2023)
A complete analysis of the limit cycle bifurcation from infinity in 3D Relay systems, which belong to the class of ... |
Final Degree Project
Implementación en lenguaje Python de la Teoría de la cartera media-varianza de Harry Markowitz
(2022)
En este proyecto se hace una introducción a los conceptos básicos de las inversiones, principalmente, en el mercado de ... |
Article
Limit cycles from a monodromic infinity in planar piecewise linear systems
(Elsevier, 2021)
Planar piecewise linear systems with two linearity zones separated by a straight line and with a periodic orbit at infinity ... |
Article
Bifurcation set for a disregarded Bogdanov-Takens unfolding: Application to 3D cubic memristor oscillators
(Springer Science and Business Media B.V., 2021)
Motivated by the dynamical analysis of certain memristor-based oscillators, in this paper we derive the bifurcation set ... |
Article
Hopf bifurcation at infinity in 3D symmetric piecewise linear systems. Application to a Bonhoeffer–van der Pol oscillator
(Elsevier, 2020)
In this work, a Hopf bifurcation at infinity in three-dimensional symmetric continuous piecewise linear systems with three ... |
Master's Final Project
Estabilidad de órbitas periódicas en el sistema molecular KCN
(2020)
This paper addresses the stability of periodic solutions in a Hamiltonian dynamical system -the KCN molecule-, by applying ... |
Article
Bifurcations from a center at infinity in 3D piecewise linear systems with two zones
(Elsevier, 2020)
We consider continuous piecewise linear systems in R3 with two zones under the assumption of having a linear center in the ... |
Final Degree Project
No linealidades en el modelo del cuarto de coche
(2018)
El modelo de vehículo de cuarto de coche es la representación más simple de un vehículo o modelo de vehículo de masas ... |
Final Degree Project
Resonancia en Tierra en Helicópteros
(2018)
El fenómeno de la resonancia en tierra es uno de los principales peligros que pueden afectar a un helicóptero. Éste es un ... |
Master's Final Project |
Article
Variable-Angle Phase-Shifted PWM for Multilevel Three-Cell Cascaded H-bridge Converters
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Multilevel cascaded H-bridge converters have become a mature technology for applications where high-power medium ac voltages ... |
Article
Phase diagram of the two-fluid Lipkin model: A "butterfly" catastrophe
(American Physical Society, 2016)
Background: In the past few decades quantum phase transitions have been of great interest in nuclear physics. In this ... |
Final Degree Project
Análisis y simulación numérica para el diseño de un sistema amortiguador de vibraciones
(2016)
El presente Trabajo Fin de Grado trata sobre un tipo de amortiguadores utilizados en la Ingeniería Civil caracterizados ... |
Master's Final Project |
Final Degree Project
Estudio dinámico del disco de Euler: simulación 3 D y sensibilidad a la disipación de la energía
(2015)
El Trabajo Fin de Grado, que se desarrolla en esta memoria, consta de tres partes principales bien diferenciadas. Una ... |
Article
The discontinuous matching of two planar linear foci can have three nested crossing limit cycles
(Universitat Autònoma de Barcelona, Servei de Publicacions, 2014)
The existence and stability of limit cycles in discontinuous piecewise linear systems obtained by the aggregation of two ... |
Article
Canonical Discontinuous Planar Piecewise Linear Systems
(Society of Industrial and Applied Mathematics, 2012)
The family of Filippov systems constituted by planar discontinuous piecewise linear systems with two half-plane linearity ... |
PhD Thesis
Bifurcaciones de Órbitas Periódicas y Conjuntos Invariantes en Sistemas Dinámicos Lineales a Trozos
(2012)
This year is the 100th anniversary of the death of Jules Henri Poincaré (Nancy, France, 29 April 1854-Paris, France, 17 ... |
Presentation
Introducción del autoaprendizaje mediante la elaboración de las memorias de laboratorio
(Universidad de Sevilla. Facultad de Ciencias de la Educación, 2011)
Se describe un trabajo de innovación educativa orientado a alumnos de primeros cursos de enseñanzas técnicas (Teoría de ... |
Presentation
Integración de las nuevas tecnologías de la información en la revisión de los programas de asignaturas de Ingeniería Eléctrica y presentación de sus contenidos
(Universidad de Sevilla, Facultad de Ciencias de la Educación, 2011)
La actividad de innovación se propone la integración de la tecnología de la información en la revisión de los programas ... |
Presentation
Metodología integral de aprendizaje en Teoría de Circuitos
(Universidad de Sevilla, Facultad de Ciencias de la Educación, 2011)
Se describe un trabajo de innovación educativa basado en la utilización de varias técnicas docentes que complementan a ... |
Presentation
Aplicación de las directrices del Espacio Europeo de Educación Superior en la docencia de Accionamientos Eléctricos
(Universidad de Sevilla. Facultad de Ciencias de la Educación, 2011)
Se presenta una experiencia docente en la docencia de las asignaturas de Máquinas Eléctricas y Tracción y Accionamientos ... |
Article
Bifurcación Silla-Nodo de Conos Invariantes en sistemas lineales a trozos Vía Bifurcación Foco-Centro-Ciclo Límite
(Sema, 2008)
En este trabajo se considera la existencia de conos invariantes en sistemas dinámicos continuos tridimensionales lineales ... |
Article
Continuation of Gerver's supereight choreography
(Real Academia de Ciencias Exactas, Físicas, Químicas y Naturales de Zaragoza, 2006)
In [6] we developed a continuation technique for periodic orbits in reversible systems having some first integrals and ... |
Article
The Focus-Center-Limit Cycle Bifurcation in Symmetric 3D Piecewise Linear Systems
(Society for Industrial and Applied Mathematics, 2005)
The birth of limit cycles in 3D (three-dimensional) piecewise linear systems for the relevant case of symmetrical oscillators ... |
Article
Families of symmetric periodic orbits in the three body problem and the figure eight
(Real Academia de Ciencias Exactas, Físicas, Químicas y Naturales de Zaragoza, 2004)
In this paper we show a technique for the continuation of symmetric periodic orbits in systems with time-reversal symmetries. ... |
PhD Thesis |
PhD Thesis |
PhD Thesis |
PhD Thesis |
Article
On the Takens-Bogdanov Bifurcation in the Chua’s Equation
(Institute of Electronics, Information and Communication Engineers, 1999)
The analysis of the Takens-Bogdanov bifurcation of the equilibrium at the origin in the Chua’s equation with a cubic ... |
Article
Hopf-Like Bifurcations in Planar Piecewise Linear Systems
(Universitat Autònoma de Barcelona, Servei de Publicacions, 1997)
Continuous planar piecewise linear systems with two linear zones are considered. Due to their low differentiability specific techniques of analysis must be developed. Several bifurcations giving rise to limit cycles are pointed out. |
PhD Thesis |
PhD Thesis
Formas hipernormales y bifurcaciones en sistemas planos y tridimensionales
(1996)
La tesis doctoral está dividida en dos partes: En la primera (que consta de los cuatro primeros capítulos) se estudia la ... |
PhD Thesis |
PhD Thesis |
Presentation |
PhD Thesis
Análisis cualitativo y de bifurcaciones en sistemas dinámicos
(1982)
En esta tesis se realiza una revisión, necesariamente sintética, de la terminología y resultados básicos del análisis ... |