Discipline Analysis to Support Tradeoffs Focus on key disciplines Provide consistent information to all discipline analyses Tight coupling to representation Automated discipline modeling Balance analysis detail against design knowledge and equired analysis speed GM RD Vehicle Design-Many Disciplines Examples of key drivers and responses drivers: overall length, width, component mass responses:bending, torsion frequency s: city highway economy drivers: backlight angle, tumblehome nses frontal area, Ce Decision Process 三 drivers: sales, components, assembly, physical pla topology layout, proportions es: load paths, ae12 4/14/04 Fenyes Discipline Analysis to Support Tradeoffs • Focus on key disciplines • Provide consistent information to all discipline analyses – Tight coupling to representation – Automated discipline modeling • Balance analysis detail against design knowledge and required analysis speed Structures Aero dynamics Solar Load Occupant Dynamics Ride & Handling Fuel Economy Crash worthiness Other Analyses* Representation 4/14/04 Fenyes Vehicle Design – Many Disciplines Examples of key drivers and responses Parameters: p1,..pn BOM BOP WB L FO RO GC FH RH LA LF LB LR LD LH h b Database/ Parametric Architecture Representation Engineering Business Decision Process Packaging Structures (frequency) drivers: overall length, width, component mass responses: bending, torsion frequency Fuel Economy drivers: Cd, powertrain, 0-60 performance, mass responses: city & highway economy Aerodynamics drivers: backlight angle, tumblehome responses: frontal area, Cd Profitability drivers: sales, components, assembly, physical plant responses: component cost, investment, revenue Packaging drivers: b-pillar size, overall width, height, tumblehome responses: aero, fuel economy, structures, piece cost Geometry drivers: topology, layout, proportions responses: load paths, aesthetics