Finite element approximation
Top PDF Finite element approximation:
DISPLACEMENT VERSUS PRESSURE FORMULATIONS IN ELASTOACOUSTICS: FINITE ELEMENT APPROXIMATION
... Abstract: Two finite element methods for the numerical computation of fluid- structure vibration problems are considered. They are applied to two formulations based on different variables to describe the fluid: ...
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Finite element approximation of the vibration problem for a Timoshenko curved rod
... Abstract. The aim of this paper is to analyze a mixed finite element method for computing the vibration modes of a Timoshenko curved rod with arbitrary geometry. Optimal order error estimates are proved for ...
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Primal and Mixed Finite Element Methods for Deformable Image Registration Problems
... Despite DIR is widely used in the medical imaging community, the mathematical and numerical analysis of DIR remains understudied. The DIR continuous problem has been formulated using mainly three approaches: minimization ...
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Primal and mixed finite element methods for image registration
... Despite them being widely used in the medical imaging community, there are still many questions to be answered from the numerical analysis point of view. A noteworthy approach is the work of P¨oschl et al. (P¨oschl, ...
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SEA: 43.38.Ct Transductores magnetoestrictivos
... piezoelectric element in combination with tuning fork and shearing motion to form an actuator using a single drive ...signal. Finite-element analysis was used in the design of the motor, and the ...
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TítuloMeshless methods applied to potential flow problems
... are required to verify some properties. In the problems we are treating, the most important ones are: that the local character of the approximation must be guaranteed and that the partition of unity must be ...
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Dynamic panel data : a brief survey of estimation methods
... the finite sample and the asymptotic variance of the two-step GMM estimator that utilizes moment conditions that are linear in the ...in finite sample bias corrected estimates of the ...the finite ...
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Modelling and analysis of the supraspinatus tendon - a finite element approach
... The main contribution of this study is the quantification of the load-bearing capacity of the supra- spinatus tendon through the strength index which, when compared to a given physiological force, provides a critical ...
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An application of the finite element method to curve fitting
... An application of the Finite Element Method (FEM) to the solution of a geometric problem is shown. The problem is related to curve fitting i.e. pass a curve trough a set of given points even if they are ...
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TítuloA stabilized finite element approach for advective diffusive transport problems
... Almeida (Editors); Escola Politécnica da Universidade de Sao Paulo, Sao Paulo, Brasil.[r] ...
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TítuloA mixed finite element method for the generalized Stokes problem
... pair for the usual primal-mixed variational formulation of the generalized Stokes problem. In this case, the pressure is approximated by continuous piecewise linear elements on a triangular mesh, and the velocity is ...
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Triple-arc incision to correct presbyopia and hyperopia - a finite-element approach
... Throughout this work a new refractive-surgery is presented. It consists of a triple-arc incision, which may correct simultaneously pres- byopia and myopia (i.e. a multiple curvature-change within the optical zone). The ...
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Dissipative Finite Element Formulation Applied to Piezoelectric Materials With the Debye Memory
... This work presents a finite element study of the Debye memory in piezoelectric devices. This memory dependency is due to the spontaneous polarization of the electric dipoles and it can be understood as a ...
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ADAPTIVE SPACE-TIME FINITE ELEMENT METHODS FOR ACOUSTICS SIMULATIONS IN UNBOUNDED DOMAINS
... space-time element, the trial solution and weighting function are approximated by a finite basis which depend on both spatial x , and tem- poral t, ...of finite element basis functions in our ...
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FINITE ELEMENT MODEL OF REAL FURNITURE IN SMALL ROOMS AT LOW FREQUENCIES
... In this paper a description was given of an investigation of the effect of a real element of furniture on room frequency responses. From the previous investigations described in [3-5] it was assumed initially ...
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TítuloA generalized statement for advective diffusive phenomena Finite element model and applications
... upwind finite element formulations were reviewed [7] and other new techniques were ...upwind finite element ...upwind finite element ...
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NUMERICAL APPROXIMATION OF THE BOUNDARY CONTROL FOR THE WAVE EQUATION WITH MIXED FINITE ELEMENTS IN A SQUARE
... To our knowledge, the scheme described in this paper was used by the first time in the context of the wave equation in [1], in order to obtain a uniform decay rate of the energy associated to the semi-discrete wave ...
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Development of thermal finite element model of an energy storage device
... This paper presents a way of modeling an energy storage system such as an electrochemical cell (battery) using thermal finite elements models. Using the thermal analysis tools of the software ANSYS, the model has ...
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Implementation of user element subroutines for frequency domain analysis of wave scattering problems with commercial finite element codes
... This report is organized as follows. In the first chapter the wave scattering problem in elastody- namics is reviewed in differential and integral form. The formulation used by Bielak & Christiano (1984) in terms of ...
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Evaluación del aporte mecánico de un geosintético como material de refuerzo en pavimentos flexibles, ante distintas configuraciones cargas reales
... A finite element model is developed in the ABAQUS software, with the aim of describing the approximate and logical behavior of a four-layer flexible pavement structure with the addition of a geosynthetic ...
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