ME 4182 Selection Analysis Team: GT Racks 2:00 pm October 3, 2005

1
ME 4182 Selection AnalysisTeam GT Racks
200 pm October 3, 2005

• Ryan Glenn
• Andrew Mrasek
• Japheth Nelson
• Manuel McMillan
• Brian Collins
• Hyun Lee

2
Objective

• Develop design criteria and assign weighted
  values
• Evaluate implications of high and low scores
• Select design based on weighted scores

3
Lowering and Raising the Bike
4
(No Transcript)
5
Rear Sliding Concept
Weighted Score 0.44
6
Roller Assist Concept
Weighted Score 0.452
7
Pneumatic Shock Concept
Weighted Score 0.544
8
Retrofit Concept
Weighted Score 0.7
9
Rotisserie Concept
Weighted Score 0.844
10
Securing the Bike
11
(No Transcript)
12
Top-Tube Clamp
Weighted Score 0.636
13
Down-Tube Clamp
Weighted Score 0.668
14
Front and Rear Tire U-Bar
Front U-bar Weighted Score 0.628Rear U-bar
Weighted Score 0.712
15
Seat-Post Clamp
Weighted Score 0.788
16
Front Fork Mount and Rear Tire Strap
Front Fork Weighted Score 0.816Rear Strap
Weighted Score 0.792
17
Conclusion

• Front-fork mount provides quick and stable
  securing
• Seat post clamp supports bike frame weight
• Rear tire strap needed for added stability
• Rotisserie unit minimizes lowering and raising
  effort

18
Design Selection