منابع مشابه
Hexahedral Meshing With Varying Element Sizes
Hexahedral (or Hex-) meshes are preferred in a number of scientific and engineering simulations and analyses due to their desired numerical properties. Recent state-of-the-art techniques can generate high quality hex-meshes. However, they typically produce hex-meshes with uniform element sizes and thus may fail to preserve small scale features on the boundary surface. In this work, we present a...
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This paper describes an automatic method for identifying thin-sheet regions (regions with large lateral dimensions relative to the thickness) for complex thin walled components, with a view to using this information to guide the hex meshing process. This fully automated method has been implemented in a commercial CAD system (Siemens NX) and is based on the interrogation and manipulation of face...
متن کاملHexahedral Meshing of complex and invalid CAD Geometries
The primary requirement for a mesh generator used in an automated tool is robustness. Surface based meshing algorithms fail very often especially with invalid boundary representation geometries. With generic boundary representation formats like STEP or IGES, invalid geometries are very common due to the loss of information and precision in CAD Data Exchange. This paper presents an approach to a...
متن کاملAutomated hexahedral meshing of anatomic structures using deformable registration.
This work introduces a novel method of automating the process of patient-specific finite element (FE) model development using a mapped mesh technique. The objective is to map a predefined mesh (template) of high quality directly onto a new bony surface (target) definition, thereby yielding a similar mesh with minimal user interaction. To bring the template mesh into correspondence with the targ...
متن کامل“all-hexahedral Element Meshing by Generating the Dual Mesh”
The 3D meshing process begins with the definition of the outer geometry. With a CAD system and a 2d quadrilateral mesh generator, a closed all-quadrilateral mesh is obtained, which is the start point for the process that this communication describes. Once imposed the outer quadrilateral mesh, the connectivity between the inner elements becomes strongly conditioned. Following the guidelines of t...
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ژورنال
عنوان ژورنال: ACM Transactions on Graphics
سال: 2016
ISSN: 0730-0301,1557-7368
DOI: 10.1145/2930662