Academic literature on the topic 'Extended Variational Formulation (XVF)'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Extended Variational Formulation (XVF).'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Extended Variational Formulation (XVF)"

1

Blanco, Pablo, Paola Gervasio, and Alfio Quarteroni. "Extended Variational Formulation for Heterogeneous Partial Differential Equations." Computational Methods in Applied Mathematics 11, no. 2 (2011): 141–72. http://dx.doi.org/10.2478/cmam-2011-0008.

Full text
Abstract:
AbstractWe address the coupling of an advection equation with a diffusion-advection equation, for solutions featuring boundary layers. We consider non-overlapping domain decompositions and we face up the heterogeneous problem using an extended variational formulation. We will prove the equivalence between the latter formulation and a treatment based on a singular perturbation theory. An exhaustive comparison in terms of solution and computational efficiency between these formulations is carried out.
APA, Harvard, Vancouver, ISO, and other styles
2

Noor, Muhammad Aslam. "Parametric Extended General Mixed Variational Inequalities." Journal of Applied Mathematics 2012 (2012): 1–11. http://dx.doi.org/10.1155/2012/201947.

Full text
Abstract:
It is well known that the resolvent equations are equivalent to the extended general mixed variational inequalities. We use this alternative equivalent formulation to study the sensitivity of the extended general mixed variational inequalities without assuming the differentiability of the given data. Since the extended general mixed variational inequalities include extended general variational inequalities, quasi (mixed) variational inequalities and complementarity problems as special cases, results obtained in this paper continue to hold for these problems. In fact, our results can be conside
APA, Harvard, Vancouver, ISO, and other styles
3

Strozzi, Antonio. "The Elastohydrodynamic Problem Expressed in Terms of Extended Variational Formulation." Journal of Tribology 108, no. 4 (1986): 557–64. http://dx.doi.org/10.1115/1.3261263.

Full text
Abstract:
The elastohydrodynamic problem is revisited in terms of an extended variational formulation, where the corresponding functional exhibits minimum properties in the solution neighborhood. Such features are exploited in the development of a relaxation-type solver. The numerical results indicate that the convergence rate of the proposed relaxation scheme becomes increasingly poor as the solution of the elastohydrodynamic problem is approached. A polyalgorithm based on a combination between relaxation-type and Newton-type schemes is proposed. The numerical experiments referred to various sealing pr
APA, Harvard, Vancouver, ISO, and other styles
4

Noor, Muhammad, Awais Khan, Khalida Noor, and Amjad Pervez. "Gauss-Seidel type algorithms for a class of variational inequalities." Filomat 32, no. 2 (2018): 395–407. http://dx.doi.org/10.2298/fil1802395n.

Full text
Abstract:
In this paper, we consider a new system of extended general quasi variational inequalities involving six nonlinear operators. Using projection operator technique, we show that system of extended general quasi variational inequalities is equivalent to a system of fixed point problems. Using this alternative equivalent formulation, we propose and analyze Gauss-Seidel type algorithms for solving a system of extended general quasi variational inequalities. Convergence of new method is discussed under some suitable conditions. Several special cases are discussed. Results obtained in this paper cont
APA, Harvard, Vancouver, ISO, and other styles
5

Seshadri, R. "Limit Loads Using Extended Variational Concepts in Plasticity." Journal of Pressure Vessel Technology 122, no. 3 (2000): 379–85. http://dx.doi.org/10.1115/1.556196.

Full text
Abstract:
Lower-bound limit load estimates are relevant from a standpoint of pressure component design, and are acceptable quantities for ascertaining primary stress limits. Elastic modulus adjustment procedures, used in conjunction with linear elastic finite element analyses, generate both statically admissible stress distributions and kinematically admissible strain distributions. Mura’s variational formulation for determining limit loads, originally developed as an alternative to the classical method, is extended further by allowing the elastic calculated stress fields to exceed yield provided they s
APA, Harvard, Vancouver, ISO, and other styles
6

Ciaglia, F. M., F. Di Cosmo, A. Ibort, G. Marmo, and L. Schiavone. "Covariant Variational Evolution and Jacobi brackets: Fields." Modern Physics Letters A 35, no. 23 (2020): 2050206. http://dx.doi.org/10.1142/s0217732320502065.

Full text
Abstract:
The analysis of the covariant brackets on the space of functions on the solutions to a variational problem in the framework of contact geometry initiated in the companion letter[Formula: see text] is extended to the case of the multisymplectic formulation of the free Klein–Gordon theory and of the free Schrödinger equation.
APA, Harvard, Vancouver, ISO, and other styles
7

WIO, HORACIO S. "VARIATIONAL FORMULATION FOR THE KPZ AND RELATED KINETIC EQUATIONS." International Journal of Bifurcation and Chaos 19, no. 08 (2009): 2813–21. http://dx.doi.org/10.1142/s0218127409024505.

Full text
Abstract:
We present a variational formulation for the Kardar–Parisi–Zhang (KPZ) equation that leads to a thermodynamic-like potential for the KPZ as well as for other related kinetic equations. For the KPZ case, with the knowledge of such a potential we prove some global shift invariance properties previously conjectured by other authors. We also show a few results about the form of the stationary probability distribution function for arbitrary dimensions. The procedure used for KPZ was extended in order to derive more general forms of such a functional leading to other nonlinear kinetic equations, as
APA, Harvard, Vancouver, ISO, and other styles
8

Petrot, Narin, and Javad Balooee. "Algorithms for Solving System of Extended General Variational Inclusions and Fixed Points Problems." Abstract and Applied Analysis 2012 (2012): 1–27. http://dx.doi.org/10.1155/2012/569592.

Full text
Abstract:
We introduce a new system of extended general nonlinear variational inclusions with different nonlinear operators and establish the equivalence between the aforesaid system and the fixed point problem. By using this equivalent formulation, we prove the existence and uniqueness theorem for solution of the system of extended general nonlinear variational inclusions. We suggest and analyze a new resolvent iterative algorithm to approximate the unique solution of the system of extended general nonlinear variational inclusions which is a fixed point of a nearly uniformly Lipschitzian mapping. Subse
APA, Harvard, Vancouver, ISO, and other styles
9

Balooee, Javad, Yeol Je Cho, and Mee Kwang Kang. "Projection Methods and a New System of Extended General Regularized Nonconvex Set-Valued Variational Inequalities." Journal of Applied Mathematics 2012 (2012): 1–18. http://dx.doi.org/10.1155/2012/690648.

Full text
Abstract:
A new system of extended general nonlinear regularized nonconvex set-valued variational inequalities is introduced, and the equivalence between the extended general nonlinear regularized nonconvex set-valued variational inequalities and the fixed point problems is verified. Then, by this equivalent formulation, a new perturbed projection iterative algorithm with mixed errors for finding a solution of the aforementioned system is suggested and analyzed. Also the convergence of the suggested iterative algorithm under some suitable conditions is proved.
APA, Harvard, Vancouver, ISO, and other styles
10

Yasutake, Nobutoshi, and Shoichi Yamada. "Variational approach for rotating-stellar evolution in Lagrange scheme." Proceedings of the International Astronomical Union 9, S307 (2014): 150–51. http://dx.doi.org/10.1017/s1743921314006620.

Full text
Abstract:
AbstractWe have developed an entirely new formulation to obtain self-gravitating, axisymmetric configurations in permanent rotation. It is based on the Lagrangian variational principle and, as a consequence, will allow us to apply it to stellar evolution calculations rather easily. We adopt a Monte Carlo technique, which is analogous to those employed in other fields, e.g. nuclear physics, in minimizing the energy functional. We also present the analogies between the study on rotating stellar configurations and the one on deformed nuclei. Possible applications are not limited to main sequence
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Extended Variational Formulation (XVF)"

1

Wenzel, Christian. "Local FEM Analysis of Composite Beams and Plates : free-Edge effect and Incompatible Kinematics Coupling." Thesis, Paris 10, 2014. http://www.theses.fr/2014PA100107/document.

Full text
Abstract:
Cette thèse traite des problèmes des concentrations de contraintes locales, en particularité des effets des bords libres dans des structures stratifiés. À l'interface entre deux couches avec des propriétés élastiques différentes, les contraintes ont un comportement singulier dans le voisinage du bord libre en supposant un comportement de matériau élastique linéaire. Par conséquent, ils sont essentiels pour promouvoir le délaminage. Via Formulation unifiée de la Carrera (CUF) différents modèles cinématiques sont testés dans le but de capter les concentrations de contraintes. Dans la première pa
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Extended Variational Formulation (XVF)"

1

Svendsen, Bob. "Continuum Thermodynamic and Rate Variational Formulation of Models for Extended Continua." In Advances in Extended and Multifield Theories for Continua. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-22738-7_1.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Extended Variational Formulation (XVF)"

1

Shen, I. Y. "A Variational Formulation, a Work-Energy Relation and Damping Mechanisms of Active Constrained Layer Treatments." In ASME 1995 Design Engineering Technical Conferences collocated with the ASME 1995 15th International Computers in Engineering Conference and the ASME 1995 9th Annual Engineering Database Symposium. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/detc1995-0569.

Full text
Abstract:
Abstract The purposes of this paper are to formulate active constrained layer (ACL) damping treatments through a variational approach, to study the work-energy relation of ACL, and to identify the damping mechanisms of ACL treatments. Application of extended Hamilton’s principle to ACL results in the equations of motion of ACL and the charge equation of electrostatics for the piezoelectric constraining layer. The work-energy equation together with the charge equation shows that the power dissipated through the active damping is the product of the electric field and the axial velocity of the pi
APA, Harvard, Vancouver, ISO, and other styles
2

Ebna Hai, Bhuiyan Shameem Mahmood, Markus Bause, and Paul Kuberry. "Finite Element Approximation of the Extended Fluid-Structure Interaction (eXFSI) Problem." In ASME 2016 Fluids Engineering Division Summer Meeting collocated with the ASME 2016 Heat Transfer Summer Conference and the ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/fedsm2016-7506.

Full text
Abstract:
This contribution is the second part of three papers on Adaptive Multigrid Methods for the eXtended Fluid-Structure Interaction (eXFSI) Problem, where we introduce a monolithic variational formulation and solution techniques. To the best of our knowledge, such a model is new in the literature. This model is used to design an on-line structural health monitoring (SHM) system in order to determine the coupled acoustic and elastic wave propagation in moving domains and optimum locations for SHM sensors. In a monolithic nonlinear fluid-structure interaction (FSI), the fluid and structure models ar
APA, Harvard, Vancouver, ISO, and other styles
3

Ebna Hai, Bhuiyan Shameem Mahmood, and Markus Bause. "Adaptive Multigrid Methods for Extended Fluid-Structure Interaction (eXFSI) Problem: Part I — Mathematical Modelling." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-53265.

Full text
Abstract:
This contribution is the first part of three papers on Adaptive Multigrid Methods for eXtended Fluid-Structure Interaction (eXFSI) Problem, where we introduce a monolithic variational formulation and solution techniques. In a monolithic nonlinear fluid-structure interaction (FSI), the fluid and structure models are formulated in different coordinate systems. This makes the FSI setup of a common variational description difficult and challenging. This article presents the state-of-the-art of recent developments in the finite element approximation of FSI problem based on monolithic variational fo
APA, Harvard, Vancouver, ISO, and other styles
4

Gallego, Guillermo, Anthony Yezzi, Francesco Fedele, and Alvise Benetazzo. "A Variational Wave Acquisition Stereo System for the 3-D Reconstruction of Oceanic Sea States." In ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2011. http://dx.doi.org/10.1115/omae2011-49061.

Full text
Abstract:
We propose a novel remote sensing technique that infers the three-dimensional wave form and radiance of oceanic sea states via a variational stereo imagery formulation. In this setting, the shape and radiance of the wave surface are minimizers of a composite cost functional which combines a data fidelity term and smoothness priors on the unknowns. The solution of a system of coupled partial differential equations derived from the cost functional yields the desired ocean surface shape and radiance. The proposed method is naturally extended to study the spatiotemporal dynamics of ocean waves, an
APA, Harvard, Vancouver, ISO, and other styles
5

Kim, J. W., I. H. Sim, J. M. Lee, Y. B. Lee, and K. J. Bai. "A Finite-Element Computation for Three-Dimensional Problems of Sloshing in LNG Tank." In 25th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/omae2006-92564.

Full text
Abstract:
A three-dimensional finite-element method is developed to calculate the impact pressure due to liquid sloshing in LNG tank. A finite-element method presented here is based on a variational principle in velocity-potential formulation, which was developed by Kim et al (ISOPE 2003). The tank motions are extended to the six degrees of freedom motions; both translational and rotational motions. Numerical result for an example of an LNG tank shows good agreement with model test results and three-dimensional effect needs to be considered to estimate correct impact pressure at tank corners.
APA, Harvard, Vancouver, ISO, and other styles
6

Adibi-Asl, R., and R. Seshadri. "Integral Mean of Yield Criterion in Design and Fitness for Service Assessment." In ASME 2008 Pressure Vessels and Piping Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/pvp2008-61646.

Full text
Abstract:
Mura’s variational formulation for determining limit loads, originally developed as an alternative to classical methods, is extended further by allowing the pseudo-elastic distributions of stresses to lie outside the yield surface provided they satisfy the “integral mean of yield” criterion. Consequently, improved lower-bound and upper-bound values for limit loads are obtained. The mα estimation limit load method, reference volume method and the fitness for service assessment procedure (including corrosion damage and thermal hot spot damage), are all applications and extensions of the “integra
APA, Harvard, Vancouver, ISO, and other styles
7

Rastogi, Vikas, Amalendu Mukherjee, and Anirvan Dasgupta. "Extended Lagrangian Formalism and Invariants of Motion of Dynamical Systems: A Case Study of Electromechanical System." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-79113.

Full text
Abstract:
In this paper, an extended Lagrangian formalism for general class of dynamical systems with dissipative, non-potential fields is formulated with the aim to obtain invariants of motion for such systems. A new concept of umbra-time has been introduced for this extension. D’Alembert basic idea of allowing displacement, when the real time is frozen is conveniently expressed in the terms of umbra-time. This leads to a peculiar form of equations, which is termed as umbra-Lagrange’s equations. A variational or least action doctrine leading to the proposed form of equation is introduced, which is base
APA, Harvard, Vancouver, ISO, and other styles
8

Yu, Wenbin. "An Improved Reissner-Mindlin Plate Theory for Composite Laminates." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-59328.

Full text
Abstract:
An improved Reissner-Mindlin theory for composite laminates without invoking ad hoc kinematic assumptions is constructed using the variational-asymptotic method. Instead of assuming a priori the distribution of three-dimensional displacements in terms of two-dimensional plate displacements as what is usually done in typical plate theories, an exact intrinsic formulation has been achieved by introducing unknown three-dimensional warping functions. Then the variational-asymptotic method is applied to systematically decouple the original three-dimensional problem into a one-dimensional through-th
APA, Harvard, Vancouver, ISO, and other styles
9

Thompson, Lonny L., and Prapot Kunthong. "Stabilized Time-Discontinuous Galerkin Methods With Applications to Structural Acoustics." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-15753.

Full text
Abstract:
The time-discontinuous Galerkin (TDG) method possesses high-order accuracy and desirable C-and L-stability for second-order hyperbolic systems including structural acoustics. C- and L-stability provide asymptotic annihilation of high frequency response due to spurious resolution of small scales. These non-physical responses are due to limitations in spatial discretization level for large-complex systems. In order to retain the high-order accuracy of the parent TDG method for high temporal approximation orders within an efficient multi-pass iterative solution algorithm which maintains stability
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!