Automatic Detail Reduction for Mesh Generation Applications

Increasing resolution in computational simulation is enabling the use of original CAD design models as the basis of mesh generation. Because of varying resolution requirements, geometric detail removal is a critical part of this proc ess. Three classes of geometry details are classified by their removal met hod: direct detail removal seeks to remove details direct ly by compositing them with neighboring topology; blend removal removes blends by first partitioning blends then compositing the pieces with neighbors; bridge removal requires more advanced decomposition, and is not described here. Key capabilities for all thes e methods include defining a size measure, and detecting geomet ric details based on those. Blend detection is also describe d. Results are given for automatic detail reduction appli ed to several real parts.