What's the difference among different midsurface extration method?
Altair EmployeeHi all,
In hypermesh, there are different methods to extrating midsurface, like skin offset, offset, offset+planes and offset+planes+sweeps. What's the difference among this methods and how to judge which method is proper for a given geometry? Is there any detail reference document about this? Thank you.
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Roy
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Altair EmployeeHi Roy Duan
skin offset: Generates a midsurface by duplicating and offsetting the inner skin surfaces and assigning them a constant thickness
offset: Creates pieces of the middle surface by offsetting the model’s surface towards the middle. This is the traditional approach for midsurfacing in HyperMesh
offset+planes: uses a midsurface algorithm to identify the planes in the model where a piece of plane can be used as a middle surface
offset +planes+sweeps: It uses a midsurface algorithm to identify the places where a piece of plane or a piece of a sweep surface can be used as a middle surface. A middle surface is constructed at the remaining places in the model, for example the places where planar or sweep surface pieces cannot be used as a middle surface, by the same algorithm as in the offset option via the offset of the model’s sides
Check this detailed document about midsurface too for reference
Hi Pranav Hari,
Could you please sent me the document you mentioned by attachment? I cannot open the link you provided.
Roy
Hi Roy Duan
Please register to the learning and certification program of Altair university https://certification.altairuniversity.com/. You can get this document from there
Also refer to the learning library where we have many videos on mid-surface extraction https://altairuniversity.com/learning-library/
Thanks
Hi Roy Duan
skin offset: Generates a midsurface by duplicating and offsetting the inner skin surfaces and assigning them a constant thickness
offset: Creates pieces of the middle surface by offsetting the model’s surface towards the middle. This is the traditional approach for midsurfacing in HyperMesh
offset+planes: uses a midsurface algorithm to identify the planes in the model where a piece of plane can be used as a middle surface
offset +planes+sweeps: It uses a midsurface algorithm to identify the places where a piece of plane or a piece of a sweep surface can be used as a middle surface. A middle surface is constructed at the remaining places in the model, for example the places where planar or sweep surface pieces cannot be used as a middle surface, by the same algorithm as in the offset option via the offset of the model’s sides
Check this detailed document about midsurface too for reference
https://certification.altairuniversity.com/pluginfile.php/17356/mod_resource/content/1/2.4 Generating a Midsurface_2017_updated.pdf