Conformal Assembly Meshing with Tolerant Imprinting
Clark, Brett W., Byron W. Hanks, and Corey D. Ernst
Proceedings, 17th International Meshing Roundtable, Springer-Verlag, pp.267-280, October 12-15 2008
17th International Meshing Roundtable
Pittsburgh, Pennsylvania, U.S.A.
October 12-15, 2008
Sandia National Laboratories, P.O. Box 5800, MS 0376
Albuquerque, New Mexico, 87185-0376
Elemental Technologies, Inc., 17 North Merchant Street, Suite 3
American Fork, Utah, 84003
Solid assembly meshing has all of the same "dirty geometry" induced issues
as single part meshing but also has the difficulty associated with generating a conformal
mesh between solids where solid-solid interfaces are not obvious. Mesh generators
usually donít have CAD assembly constraint information to identify interfacing solids
and must therefore rely on geometric proximity to deduce these interactions. "Slop"
in the positioning and alignment of parts in the assembly makes automatically discovering
the interfaces and generating a conformal mesh at the interfaces very difficult.
Most of the efforts in this area resort to some sort of discrete representation to deal
with these issues losing the capability to do further solid modeling engine operations
often necessary for all-hexahedral meshing. This paper presents a method for defining
the non-manifold interfaces between volumes in an assembly required for generating a
conformal mesh while maintaining the original solid modeling engine format.
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