Results 1 to 10 of about 210 (119)
Simulation Time Reduction with 2.5D FEM Analysis for Axial Flux Machines
Power Electronics and Drives, 2023 Abstract In this paper, an approach for a two-and-half-dimensional (2.5D) finite element method (FEM)-based analysis, or quasi-three-dimensional (3D) FEM analysis, of an axial flux machine is discussed. By cutting the 3D model laterally and thereby creating cylindrical surface cuts, the 3D model can be split into several cylindrical ...
Mike Königs +4 more
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Exact conic section arc elements in 2D and 2.5D FEM using a coordinate transformation [PDF]
IET Microwaves, Antennas & Propagation, 2021 Abstract This study introduces the conic section arc elements in 2D and 2.5D finite element method (FEM). Elements are obtained by deforming an edge in a standard triangular element through a coordinate transformation. This allows to completely eliminate the geometrical error in structures composed of circular, elliptical, hyperbolic ...
Lorenzo Codecasa +4 more
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A 2.5D coupled FEM–SBM methodology for soil–structure dynamic interaction problems
Engineering Structures, 2022 In this paper, a novel numerical methodology to deal with longitudinally invariant soil–structure interaction problems is proposed. The methodology uses the finite element method to model the structure and the singular boundary method to model the wave propagation in the soil, both formulated in the wavenumber–frequency domain.
Liravi, Hassan +4 more
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A 2.5D FEM-BEM-MFS METHODOLOGY FOR SOIL-STRUCTURE INTERACTION PROBLEMS IN LAYERED HALF-SPACES [PDF]
Proceedings of the XI International Conference on Structural Dynamics, 2020 In this paper, a new prediction methodology to deal with longitudinally invariant soil-structure interaction problems in elastodynamics is presented. The method uses the finite-element method to model the structure, the boundary-element method to model the local soil surrounding the structure and the method of fundamental solutions to model the wave ...
Liravi, Hassan +3 more
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Computers and Geotechnics, 2021 This 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 method to model the local soil surrounding the structure and the method of fundamental solutions to model the wave ...
Liravi, Hassan +4 more
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A 2.5D BEM-FEM USING A SPECTRAL APPROACH TO STUDY SCATTERED WAVES IN FLUID–SOLID INTERACTION PROBLEMS [PDF]
WIT Transactions on Engineering Sciences, 2019 42nd International Conference on Boundary Elements and other Mesh Reduction Methods, BEM/MRM 2019; ITeCons-University of Coimbra, Coimbra; Portugal; 2 July 2019 through 4 July 2019.
Cruz Muñoz, Juan +3 more
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Engineering Structures, 2021 Abstract Wave propagation in a longitudinally curved viscoelastic structure with a large or infinite cross section is a common problem frequently encountered. To study this problem, a coupled finite element method-perfectly matched layer (FEM-PML) modelling methodology based on a curved two-and-a-half-dimensional (2.5D) formulation is proposed in ...
Ma, Longxiang +4 more
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INTER-NOISE and NOISE-CON Congress and Conference Proceedings, 2023 This paper presents an efficient method to predict underground railway-induced vibrations. The method uses the finite element method (FEM) to model the railway tunnel structure and the singular boundary method (SBM) to model the wave propagation in the surrounding soil.
Liravi, Hassan +2 more
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Modelling of acoustic and elastic wave propagation from underground structures using a 2.5D BEM-FEM approach [PDF]
Engineering Analysis with Boundary Elements, 2017 Ministerio de Economía y Competitividad BIA2013-43085 ...
Romero Ordóñez, Antonio +4 more
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3D aspects in a 2.5D BEM/FEM code for soil structure interaction
, 2020 Some limits of 2.5D models for sol-structure interaction are addressed. First, the problem of micro piles is studied in comparison with 3D FEM full models. In the 2.5D model, micro-piles are replaced by walls of a given thickness which was found to be directly correlated to the 3D pile density.
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