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CADfix - CAE Geometry
for Advanced Simulation
Andrew Chinn
Commercial Director, ITI UK Ltd
CADfix - CAE Geometry for Advanced Simulation
Introduction to ITI and CADfix
The need for CAE Geometry
Technology for deriving CAE Geometry
CAE Geometry CEM
CAE Geometry for CFD
CAE Geometry for FEA
1
ITI and CADfix
ITI provides interoperability solutions
for product data and related systems
Translate, repair and simplify
Connect CAD and CAE
Eliminate model rework
Reduce CAE lead times
2
CAE Geometry
Customers are demanding more from their engineering
analysis processes
• Bigger and more complex models
• Iterative optimisation
Need for greater automation
and improved CAD-CAE integration
Deficiencies in CAD models are a limiting factor
Requires an alternative idealised CAE GEOMETRY
• Idealised and adapted for the specific CAE process
• Often very different to the original CAD model
3
Technology for Deriving CAE Geometry
Advanced model defeaturing
Dimensional reduction
Shrinkwrapping
Welding
CAE back to CAD and geometry morphing
Facetted models
Hybrid BREP & facetted models
Medial Object (MO)
4
Unique CADfix Medial Object Technology
CADfix Medial Object (MO)
• Centre of maximal diameter disc in a 2D face
• Centre of maximal diameter sphere in a 3D solid
Provides information about the thickness,
proximity and parent geometry
5
CADfix MO Maturing for Complex Models
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