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Simplification of FEM-Models on Cell BE [chapter]

Jon Mikkelsen Hjelmervik, Jean-Claude Léon
2010 Lecture Notes in Computer Science  
Furthermore, the use of processors such as GPUs of IBMs Cell BE requires algorithms to be adapted to benefit from their computational advantages.  ...  Preparing a CAD model for Finite Element (FE) analysis can be a time-consuming task, where shape and mesh simplifications play an important role.  ...  The analysis can be performed on simple components, such as beams, or on complex models, and large assemblies such as models of entire airplanes.  ... 
doi:10.1007/978-3-642-11620-9_17 fatcat:3v6umk2yyjhizei2mgdsjurbrm

A survey of CAD model simplification techniques for physics-based simulation applications

Atul Thakur, Ashis Gopal Banerjee, Satyandra K. Gupta
2009 Computer-Aided Design  
Currently a rich body of literature exists that describe many successful techniques for fully-automatic or semi-automatic simplification of CAD models for a wide variety of applications.  ...  Automated CAD model simplification plays an important role in effectively utilizing physicsbased simulation during the product realization process.  ...  In case of a split operation, a cell within a model having dimension greater than zero (i.e. a point), can be split into two or more cells of similar dimension by introducing one or more cells of lower  ... 
doi:10.1016/j.cad.2008.11.009 fatcat:52wtq4yuvbhjpp25pkdekhlo2u

A simplification method for reflective and rotational symmetry model in electromagnetic field analysis

T. Naito, H. Tsuboi
2001 IEEE transactions on magnetics  
Using spatial eigenmodes, the coefficient matrix of the final simultaneous equations for the time and storage capacity can be reduced.  ...  In this paper, a simplification method for reflective and rotational symmetry model, is proposed.  ...  Using the simplification method, the model is simplified to a one-8th model. Fig. 4 shows the computation result of current distributions.  ... 
doi:10.1109/20.952660 fatcat:p2paw3xqnvcytp6csmrxux3yee

Relevance of Mesh Dimension Optimization, Geometry Simplification and Discretization Accuracy in the Study of Mechanical Behaviour of Bare Metal Stents

Mariacristina Gagliardi
2011 International Journal of Computational Models and Algorithms in Medicine  
Stents are metallic cylindrical structures constituted of a cell-repeated pattern. Basing on cell pattern, stents can be classified as slotted tubes, coil or mesh types (Xia et al., 2007) .  ...  of software tools, based on the Finite Element Method (FEM) were developed.  ... 
doi:10.4018/jcmam.2011010101 fatcat:gcbmagmeenanrcdlot2wnjja3m

Comparison of FEM Simulations of Rubber-Metal Mount Element

Jozef Bucha, Ján Danko, Tomáš Milesich, Tomáš Nemec, Ľuboš Magdolen
2022 Strojnícky casopis – Journal of Mechanical Engineering  
Preparing of computational models are realized in MSC Marc and MSC Nastran. Results from simulations are compared to Abaqus simulation results.  ...  Presented paper deals with comparison of simulations of rubber-metal motor mount using finite element method.  ...  Element cells of properties are the same as of materials and shown in Fig. 4 . FEM model contains one RBE2 connection with all 6 DOFs prescribed.  ... 
doi:10.2478/scjme-2022-0002 fatcat:ofyujhcecjamrldjdquls23zie

Three-Dimensional (3D) Microstructure Visualization and Finite Element Modeling of the Mechanical Behavior of Heterogeneous Materials

N Chawla, V V Ganesh
2005 Microscopy and Microanalysis  
A serial sectioning process was used to develop a three-dimensional (3D) representation of the microstructure of a SiC particle reinforced Al composite, for visualization and finite-element modeling (FEM  ...  The Young's modulus and stress-strain behavior of the composite predicted by the 3D model of microstructure correlated very well with experimental results.  ...  , and FEM technique is an improvement over 2D and 3D unit cell models, and can be used to effectively visualize and simulate material behavior.  ... 
doi:10.1017/s1431927605509310 fatcat:gch7ub56nzex7e3kwh7gvfa5jm

Three-dimensional (3D) microstructure visualization and finite element modeling of the mechanical behavior of SiC particle reinforced aluminum composites

N. Chawla, V.V. Ganesh, B. Wunsch
2004 Scripta Materialia  
A serial sectioning process was used to develop a three-dimensional (3D) representation of the microstructure of a SiC particle reinforced Al composite, for visualization and finite-element modeling (FEM  ...  The Young's modulus and stress-strain behavior of the composite predicted by the 3D model of microstructure correlated very well with experimental results.  ...  Shen, University of New Mexico. The assistance of Dr. X. Deng, Arizona State University, with the FEM simulations is also appreciated.  ... 
doi:10.1016/j.scriptamat.2004.03.043 fatcat:veb743qo6nfslmmvqopaj2mmbi

Linaccalc: software for accelerating structure characteristics simulation based on equivalent circuit method

S. V. Matsievskiy, V. I. Kaminskii, A. A. Gorchakov, M. V. Lalayan, M. A. Gusarova, N. P. Sobenin
2021 Cybernetics and Physics  
It allows calculating characteristics of the accelerating sections with large number of cells in short time on machines with moderate amount of computational power.  ...  Nowadays design of accelerating structures is almost exclusively done using 2.5D and 3D codes based on finite elements method.  ...  Isolated cavity oscillations on a particular mode may by represented by a simple RLC circuit (serial or parallel). More complex structures are modeled by introduction of additional coupling elements.  ... 
doi:10.35470/2226-4116-2021-10-1-22-26 fatcat:ylae273t3jb5fkcoc2mrjnrx4i

Electromagnetic modelling strategies for virtual testing of electrical powertrains

Alastair R. Ruddle, Jiaqi Chen, Yu Xian Teo
2018 Zenodo  
For EMC investigations, more practicable measurement of individual cells has been used to develop efficient hybrid 3D/circuit models for assemblies of large numbers of such cells used to form traction  ...  For EMF assessments, knowledge of the 3D geometry and the frequency content of traction current waveforms can be used to estimate the spatial distributions of low frequency magnetic fields and exposure  ...  A crucial simplification in the development of practicable electromagnetic models of batteries is therefore to use equivalent cell models that can be derived from measurements, thus avoiding the need to  ... 
doi:10.5281/zenodo.1485137 fatcat:udjys37oxbezthaq6grhazzhfq

Time-critical animation of deformable solids

J. Dequidt, D. Marchal, L. Grisoni
2005 Computer Animation and Virtual Worlds  
This paper presents a model for handling multiresolution animation of complex deformable models.  ...  An octree-based animation and algorithmic tools are introduced to provide real-time interaction on complex objects. Some efficient collision detection scheme is also described for deformable models.  ...  At the beginning of the simulation, costs for subdividing, as well as simplifying, a cell are estimated, using on-the-fly subdivision and simplification of sample cells, in order to have cost reference  ... 
doi:10.1002/cav.110 fatcat:k2dzgkvz2rftpjlm7m7qdefv3u

Modeling Aspects of the Dynamic Response of Heterogeneous Materials

A. Ionita, B.E. Clements, E.M. Mas
2010 Materials Science Forum  
Examples of using two-scale FEM approaches are presented.  ...  The use of homogenization techniques can reduce the size of the problem but will miss the local effects. Homogenization can also be difficult if the constituents obey different constitutive laws.  ...  Two-Scale FEM-MOC The Method of Cells (MOC) represents a method to determine ((5) by using a simplified representation of the RYE [2] .  ... 
doi:10.4028/ fatcat:kxx2fbxiqveyxbhkn2ow26vf34

Quality Assessment of a 2D FE Based Lumped Parameter Electric Motor Thermal Model Using 3D FE Models

Jasper Nonneman, Ilya T'Jollyn, Peter Sergeant, Michel De Paepe
2020 2020 International Conference on Electrical Machines (ICEM)  
The assumptions and simplifications in de 3D LPM are verified with a 3D FE model by comparing the simulated average and maximum component temperatures of the models.  ...  The comparison shows a deviation of 0.2% on the maximum of the average component temperatures (rotor) and 0.1% on the maximum of the maximum component temperatures (winding).  ...  Several simplifications and assumptions were introduced to be able to develop the 3D LP model, whose effect on the accuracy of the motor is verified.  ... 
doi:10.1109/icem49940.2020.9270820 fatcat:t2zry4uo3fdmrpdn774lkwlunu

Active self-adaptive metamaterial plates for flexural wave control [article]

Zheng-Yang Li, Tian-Xue Ma, Yan-Zheng Wang, Yu-Yang Chai, Chuanzeng Zhang, Feng-Ming Li
2021 arXiv   pre-print
A simplified plate model is established by the Hamilton principle.  ...  The ASAMM plates consist of an elastic base plate and two periodic arrays of piezoelectric patches.  ...  Further simplifications of the model include the uniform electric field and uniform height. The PWE and FEM are used to calculate the band structures.  ... 
arXiv:2108.01142v1 fatcat:xcqnyfzoizd2vinggwurhmltpe

A Comparative Study on Linear Effective Properties Predictions of an Argillite Rock Using XFEM

Senjun Wu, Naima Belayachi, Dashnor Hoxha, Duc-Phi Do
2015 Journal of Civil Engineering and Architecture  
Usually, the modeling of such heterogeneous material is performed either through an analytical homogenization approach, or numerically, especially for complex microstructures.  ...  The use of XFEM proposed here retains the accuracy of the classical finite element approach, allowing one to use meshes that do not necessarily match the physical boundaries of the material constituents  ...  It is supposed that this simplification offers a sufficient accuracy for most practical purposes, even if the question of the effect of this simplification on effective properties is not yet clear.  ... 
doi:10.17265/1934-7359/2015.07.004 fatcat:jj2t3qz5lzffrmqz6xypqum7eu

The First International Workshop on Systems Biology of Yeast, St. Louis, USA, 9 November, 2003

2004 FEMS Yeast Research  
This information will be used as a basis for mathematical modelling and will build a platform for the development of whole-cell models for the prediction of phenotypic behaviour.  ...  To this date metabolic models are therefore first-generation models where many simplifications are introduced [7] .  ... 
doi:10.1016/j.femsyr.2004.02.001 fatcat:r2j7t5zgo5fcjm7y4eeysdnrqa
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