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发表于 2009-7-16 13:53
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来自: 中国上海
Improvements regarding the geometry import/export
The proposed news items are as follows:
• The import of the geometry can be carried out starting from files containing the mesh of MED format: Model of Data Exchange (extension *.MED).
• import of the surface and volume regions in NASTRAN
• the advanced import is available in 64 bit (new version ACIS (R19))
Automatic adjustment of automatic mesh
New capabilities for the adjustment of the automatic mesh are proposed for the automatic adjustment of the mesh density.
The manual process of creating and assigning the mesh points and mesh lines is replaced by an automatic adjustment process, which adapts the mesh density to the geometry and to its more or less complex curvatures
Two main algorithms are implemented: one algorithm of node relaxation on the lines (faces), which can be coupled to an algorithm of deflection. This results in the improvement of the mesh configuration permitting a very close adherence to the shape of the geometry.
The process of mesh adjustment is considerably simplified (automatic) and the mesh obtained is of very good quality.
The new process of automatic adjustment of the automatic mesh is presented in a more detailed manner under § 2 « Automatic mesh ».
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