16.810 Engineering Design and Rapid PrototypingRequirementsInitial Design: Concept #1Redesign: Concept #216.810 Engineering Design and Rapid PrototypingTeam 1: Family Economy Bike Jaclyn Cichon, Alison Gallagher-RogersJanuary 31, 2004RequirementsProduct Type: Family EconomyPriorities: 1. Cost 2. Mass3. Structural PerformancePerformance Requirements:Manufacturing Cost (C): C $3.6/partPerformance: displacement 0.078 mm, 0.012 mmfirst natural frequency f 195 HzMass (m): m 0.27lbsSurface Quality (Q): Q 2Load Case (F): F1=50 lbs, F2=50lbs, F3=100 lbs≤≥≥≤≤≤1δ2δ1Initial Design: Concept #1 Requirements FEA TestingManufacturing Cost: $3.60 $5.15 NAPerformance:0.078 0.061 0.1680.012 0.008 0.073 f 195 229 467Mass:0.27 lbs 0.25lbs 0.25lbsSurface Quality:233≤1δ2δ1≤≥≤≤≥Redesign: Concept #2Requirements FEA TestingManufacturing Cost: $3.60 $3.60 NAPerformance:0.078 0.062 0.1510.012 0.009 0.046 f 337 345 349Mass:0.27 lbs 0.21lbs 0.21lbsSurface Quality:2 2, 5 2,
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