CHASSIS DESIGN: Shape Team MIEUX – ASME Design Competition September 30, 2004 Stefan Campbell Carlos Celada Chris Villani Laurel Weiske TEAM MIEUX

Chassis Design Variables L DF DR L – Length Axle to Axle DF – Diameter of the Front Wheel DR – Diameter of the Rear Wheel *Additional design variables related to cross-sectional area not shown

TEAM MIEUX Calculating Required Chassis Shape Assign Wheel Centers Coordinates Based on wheel Diameters Calculate points x’ and y’ Calculate length of L’ Plot L’ vs. length of Chassis Update Wheel center positions

TEAM MIEUX Calculating Required Chassis Shape Rear Wheel contacts wall movement changes – rear wheel increments some ΔY

TEAM MIEUX MatLab Output Given Design Variables (L, DF, DR)

TEAM MIEUX Preliminary CAD concepts based on Geometric Results Assuming an aluminum construction material Weight:.58lbs.

TEAM MIEUX Double Rails Assembled

TEAM MIEUX In Order to Finalize Design…. Finalize motor selection to finalize attachment geometry Primary Driver for Wheel Size Add additional design variables for cross-sectional area Stress (σ) Deflections (ν) Joining Rails Method of attachment