CHASSIS DESIGN: Shape

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CHASSIS DESIGN Shape Team MIEUX ASME Design
Competition September 30, 2004 Stefan
Campbell Carlos Celada Chris Villani Laurel Weiske
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Chassis Design Variables
L Length Axle to Axle DF Diameter of the
Front Wheel DR Diameter of the Rear Wheel
DF
L
Additional design variables related to
cross-sectional area not shown
DR
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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

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Calculating Required Chassis Shape
Rear Wheel contacts wall movement changes rear
wheel increments some ?Y
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MatLab Output
Given Design Variables (L, DF, DR)
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Preliminary CAD concepts based on Geometric
Results

• Assuming an aluminum
• construction material
• Weight .58lbs.

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Double Rails Assembled
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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 (s)
• Deflections (?)
• Joining Rails
• Method of attachment

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