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Mid-Term Presentation. Unit 91 Week 7. Jon Gutierrez, Chris Sauer, Simon Radomski, Chat Huynh, Jeff Burton, & Robert Platt October 1, 2008. Outline. Project Goal Problem Statement Design Partition Analysis Tool. Project Goal. To Create a bike that can jump off cliffs. Josh Bender. - PowerPoint PPT Presentation
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Unit 91 Week 7
Jon Gutierrez, Chris Sauer, Simon Radomski, Chat Huynh, Jeff Burton, & Robert Platt
October 1, 2008
Mid-Term Presentation
Outline
Project Goal Problem Statement Design Partition Analysis Tool
Project GoalTo Create a bike that can jump off cliffs
Josh Bender
Josh Bender – YouTube.com http://www.youtube.com/watch?v=Y3qRy0Nj2uY
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1.5
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2.5
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3.5
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4.5
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0 2 4 6 8 10 12 14Travel (in)
Mec
hani
cal A
dvan
tage
Regular Riding Landing Jumps
Problem Statement
Characteristics•Soft Suspension•High Traction
Characteristics•Hard Suspension•Maximum force to rider
ProductionDownhill Bikes Our Bike
Mechanical Advantage
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100
200
300
400
500
600
700
800
900
1000
0 2 4 6 8 10 12 14
Travel (in)
Spr
ing
Forc
e (N
)
Problem StatementBegin Impact End Impact
Characteristics•Low Initial force
Goal: allow the rider additional reaction time
Characteristics•High Final Force
ProductionDownhill Bikes
Our Bike
Force To Rider
Design Partition
• Evaluate Wheel Path• Chain Extension• Affect of Geometries on Forces
Current Design
Isometric View
Current Design
Un-Compressed
Current Design
Compressed
