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Browsing by UPV Unit "Universitat Politècnica de València. Centro de Investigación en Tecnología de Vehículos - Centre d'Investigació en Tecnologia de Vehicles"

Now showing items 1-20 of 28

2D contact smooth formulation based on the mortar method

Tur Valiente, Manuel; Giner Maravilla, Eugenio; Fuenmayor Fernández, Francisco Javier; Wriggers, P. (Elsevier, 2012)

In this paper, we apply a smoothing technique to solve contact problems using a segment-to-segment formulation based on the mortar method. In contact smoothing the C 0 finite element description of the geometry is replaced ...
3D acoustic modelling of dissipative silencers with nonhomogeneous properties and mean flow

Sánchez Orgaz, Eva María; Denia, Francisco David; Martínez-Casas, José; Baeza, Luis (Hindawi Publishing Corporation, 2014-06)

A finite element approach is proposed for the acoustic analysis of automotive silencers including a perforated duct with uniform axial mean flow and an outer chamber with heterogeneous absorbent material. This material can ...
A 3-PRS parallel manipulator for ankle rehabilitation: towards a low-cost robotic rehabilitation

Vallés Miquel, Marina; Cazalilla, J.; Valera Fernández, Ángel; Mata Amela, Vicente; Page Del Pozo, Alvaro Felipe; Díaz Rodríguez, Miguel Ángel (Cambridge University Press, 2015-03-13)

This paper presents the design, kinematics, dynamics and control of a low-cost parallel rehabilitation robot developed at the Universitat Polit`ecnica de Valencia. Several position and force controllers have been tested ...
A comprehensive model of the railway wheelset-track interaction in curves

Martínez Casas, José; Di Gialleonardo, Egidio; Bruni, Stefano; Baeza González, Luis Miguel (Elsevier, 2014-09-01)

Train-track interaction has been extensively studied in the last 40 years at least, leading to modelling approaches that can deal satisfactorily with many dynamic problems arising at the wheel/rail interface. However, the ...
A finite element approach for the acoustic modelling of perforated dissipative mufflers with non-homogeneous properties

Antebas, A.; Denia Guzmán, Francisco David; Pedrosa Sanchez, Ana Maria; Fuenmayor Fernández, Francisco Javier (Elsevier, 2013-04)

[EN] In this work, a finite element approach is presented for modeling sound propagation in perforated dissipative mufflers with non-homogeneous properties. The spatial variations of the acoustic properties can arise, ...
A recovery-explicit error estimator in energy norm for linear elasticity

Nadal Soriano, Enrique; Díez, P.; Ródenas, J.J.; Tur Valiente, Manuel; Fuenmayor Fernández, Francisco Javier (Elsevier, 2015-04-15)

[EN] Significant research effort has been devoted to produce one-sided error estimates for Finite Element Analyses, in particular to provide upper bounds of the actual error. Typically, this has been achieved using ...
Acoustic modelling of exhaust devices with nonconforming finite element meshes and transfer matrices

Denia, FD.; Martínez-Casas, J.; Baeza, L.; Fuenmayor, FJ. (Elsevier, 2012-08)

[EN] Transfer matrices are commonly considered in the numerical modelling of the acoustic behaviour associated with exhaust devices in the breathing system of internal combustion engines, such as catalytic converters, ...
Certification of projection-based reduced order modelling in computational homogenisation by the constitutive relation error

Kerfriden, Pierre; Ródenas, J.J.; Bordas, S.P.-A. (Wiley, 2014-02-10)

In this paper, we propose upper and lower error bounding techniques for reduced order modelling applied to the computational homogenisation of random composites. The upper bound relies on the construction of a reduced model ...
Development of a simulation tool for the dynamic analysis of railway vehicle - Track interaction

Shaltout, Ramy; Ulianov, Cristian; Baeza González, Luis Miguel (Politechnika Śląska (Silesian University of Technology), 2015)

[EN] The importance of modelling and simulation in the field of railway systems has greatly increased in the last decades. Various commercial simulation packages have been developed and are used to analyse the dynamic ...
Direction of crack propagation in a complete contact fretting-fatigue problem

Giner Maravilla, Eugenio; Sabsabi, Mohamad; Ródenas García, Juan José; Fuenmayor Fernández, Francisco Javier (Elsevier, 2014-01)

In this work, the orientation and propagation of a crack in a fretting fatigue problem is analyzed numerically and correlated experimentally. The analysis is performed using a 2D model of a complete-contact fretting problem, ...
Dynamics of damped rotating solids of revolution through an Eulerian modal approach

Martínez Casas, José; Fayos Sancho, Juan; Denia Guzmán, Francisco David; Baeza González, Luis Miguel (Elsevier, 2012-02-13)

This article presents a technique for modelling the dynamic response of rotating flexible solids with internal modal damping. The method is applicable to solids with geometry of revolution that rotate around their main ...
Enhanced error estimator based on a nearly equilibrated moving least squares recovery technique for FEM and XFEM

Ródenas, J.J.; González Estrada, Octavio Andrés; Fuenmayor Fernández, Francisco Javier; Chinesta, F. (Springer Verlag, 2012)

In this paper a new technique aimed to obtain accurate estimates of the error in energy norm using a moving least squares (MLS) recovery-based procedure is presented. In the techniques based on the superconvergent patch ...
Evolutionary algorithm to solve trajectory planning problem, with robot dynamics considerations

ABU-DAKKA, FARES JAWAD MOHD; Valero Chuliá, Francisco José; Suñer Martinez, Josep Lluis; Mata Amela, Vicente (Pozzo Gros Monti, 2012)

[EN] This paper presents a new genetic algorithm methodology to obtain a smooth trajectory planning for industrial robots in complex environments. This method aims to gradually create the collision free trajectory as the ...
Evolutionary indirect approach to solving trayectory planning problem for industrial robots

ABU-DAKKA, FARES JAWAD MOHD; Rubio Montoya, Francisco José; Valero Chuliá, Francisco José; Mata Amela, Vicente (Elsevier, 2013-11)

In this paper, an indirect method for trajectory planning for industrial robots has been addressed using an evolutionary algorithm. The algorithm is divided into three stages: (1) The acquisition of Adjacent Configurations ...
Evolutionary Path Planning Algorithm for Industrial Robots

ABU-DAKKA, FARES JAWAD MOHD; Valero Chuliá, Francisco José; Mata Amela, Vicente (Taylor & Francis and The Robotics Society of Japan, 2012)

This paper proposed a new methodology to solve collision free path planning problem for industrial robot using genetic algorithms. The method poses an optimization problem that aims to minimize the significant points ...
Experimentos sobre movimiento giroscópico

Mata Amela, Vicente; Carballeira Morado, Javier (Universitat Politècnica de València, 2019-01-09)

En este vídeo didáctico se va a realizar una introducción al movimiento giroscópico. Se emplea un giróscopo de demostración para llevar a cabo una serie de experimentos que muestran la complejidad de este movimiento.
Finite element based acoustic analysis of dissipative silencers with high temperature and thermal-induced heterogeneity

Denia Guzmán, Francisco David; Sánchez Orgaz, Eva María; Martínez Casas, José; Kirby, Ray (Elsevier, 2015-05-15)

A mixed finite element model has been derived for the acoustic analysis of perforated dissipative silencers including several effects simultaneously: (1) High temperature and thermal gradients in the central duct and the ...
High-Frequency Vertical Wheel Rail Contact Forces at High Vehicle Speeds The Influence of Wheel Rotation

Torstensson, Peter Torsten; Nielsen, Jens C. O.; Baeza González, Luis Miguel (Springer Verlag (Germany), 2012)

[EN] Dynamic vehicle track interaction at high vehicle speeds is investigated in a frequency range from about 20 Hz to 3 kHz. The inclusion of wheel rotation in the vehicle model is investigated by implementing a structural ...
Homogenized stiffness matrices for mineralized collagen fibrils and lamellar bone using unit cell finite element models

Vercher Martínez, Ana; Giner Maravilla, Eugenio; Arango Villegas, Camila; Tarancón Caro, José Enrique; Fuenmayor Fernández, Francisco Javier (Springer Verlag (Germany), 2014-04)

Mineralized collagen fibrils have been usually analyzed like a two phase composite material where crystals are considered as platelets that constitute the reinforcement phase. Different models have been used to describe ...
Imposing Dirichlet boundary conditions in hierarchical Cartesian meshes by means of stabilized Lagrange multipliers

Tur Valiente, Manuel; Albelda Vitoria, José; Nadal Soriano, Enrique; Ródenas García, Juan José (Wiley, 2014-05-11)

[EN] The use of Cartesian meshes independent of the geometry has some advantages over the traditional meshes used in the finite element method. The main advantage is that their use together with an appropriate hierarchical ...