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  • How to Find Errors in Finite-Element Models
    step uses the finite-element method to find an approximation . This involves selecting a mesh and elements such as 2D plates, eight-node bricks, p-elements, and so on. The mesh and elements define what's called the finite-element discretization. Discretization error is defined by Most analysts would
  • Boundary Element Acoustics
    or to evaluate acoustic mode shapes of cavities. The method requires a mesh of the acoustic domain and leads to a system of equations with banded symmetric system matrices, which are solved in a very-efficient manner using iterative solvers. Acoustic harmonic finite element models are excited through a set
  • An Interface-based API for Mesh Visualization
    We present the design and implementation of MeshViz XLMTM, an interface-based API for mesh extraction and visualization. Large meshes and the associated data are a key challenge in application domains such as finite element analysis, computational fluid dynamics and reservoir engineering. Our
  • Focused finite elements analyze nozzles
    highstress areas," says Tony Paulin, president of Paulin Research in Houston. Software called NozzlePro4 from Paulin's company ( ) provides one way to stress-analyze nozzles. The software is a focused FEA program that makes it easy to model, mesh, and apply boundary conditions, such as temperature
  • New element lops time off CFD simulations
    . Results for tets and polyhedrons show similar results despite a widely different number of elements. The last time finite-element meshing was in the headlines, developers were debating the advantages of tetrahedral (pyramid) versus hexahedral (brick) elements. Simulation experts today are talking about
  • Converging on an accurate solution
    Most FEA students quickly learn that finer meshes usually produce more accurate solutions. A precision contour display indicates the effects the finite-element mesh has on accuracy for the square-plate problem. The highest values (in red) occur where the change in von Mises stress results
  • What designers should know about Thermal Analysis
    are temperatures at nodes of the finite-element mesh. Temperature is scalar so it needs only one degree of freedom at each node, whether the model is 2D or 3D and regardless what elements mesh the model. Once temperatures are found at the nodes, they are interpolated over elements to calculate temperatures
  • Why is the cylinder head warping? FEA has evidence
    the leaks. Vishwas Bantanahal, an engineer at Adiabatics, began with a Pro/E model of the cylinder head and six washers under the bolt heads. He used the FEA developer's InCAD to capture the geometry and create a 3D finite-element mesh. "This direct CAD to CAE data exchange is easier than other

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