Challenges in Parametric Representation Must combine geometric, non-geometric data Robust parameterization of points, curves, surfaces, solids Maintain robust associativity across parts and assemblies Must be able to flexibly modify Relationships (independent, dependent)-constraint management Geometry and parts(add /remove/modify) Manage coarse-to-fine strategy Share parametrics with Other CAD systems-STEP/GES are inadequate Multidisciplinary Analysis and Optimization Our Goal: Multidisciplinary analysis and optimization for early vehicle development- coarse balance and integration Required Functionality Automatically run analysis and optimization from the shared representation Distributed, multiplatform .Database is the common repository Optimization, DOE, manual9 4/14/04 Fenyes Challenges in Parametric Representation • Must combine geometric, non-geometric data • Robust parameterization of points, curves, surfaces, solids – Maintain robust associativity across parts and assemblies • Must be able to flexibly modify – Relationships (independent, dependent) - constraint management – Geometry and parts (add / remove / modify) • Manage coarse-to-fine strategy • Share parametrics with – Other CAD systems - STEP/IGES are inadequate – CAE applications, MDO systems Structures Aero dynamics Solar Load Occupant Dynamics Ride & Handling Fuel Economy Crash worthiness Other Analyses* Representation 4/14/04 Fenyes Multidisciplinary Analysis and Optimization Required Functionality •Automatically run analysis and optimization from the shared representation • Coordinate the analyses •Dataflow •Distributed, multiplatform • Share design variables and responses •Database is the common repository • Improve the design •Optimization, DOE, manual, … Our Goal: Multidisciplinary analysis and optimization for early vehicle development – coarse balance and integration