Sketch Model Review Pink B 10/4/18 10/4/18 2.009 Pink Team - - PowerPoint PPT Presentation

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Aug 21, 2023 299 likes •373 views

Sketch Model Review Pink B 10/4/18 10/4/18 2.009 Pink Team 2.009 Pink Team Bikers going over handle bars >500,000 injuries requiring hospital emergency department in 2013

SLIDE 1

10/4/18 2.009 Pink Team 10/4/18 2.009 Pink Team

Sketch Model Review

Pink B

SLIDE 2

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Bikers going over handle bars
>500,000 injuries requiring hospital emergency department in 2013
>55% from falls from bike and flipping over handlebars

SLIDE 3

10/4/18 2.009 Pink Team 10/4/18 2.009 Pink Team WEIGHT

TENSION SLACK

NORMAL RIDING FLIPPING OVER

SLIDE 4

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SLIDE 5

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Lessons
Input force from rear wheel must be high
Friction will cause problems
Brake wires cannot turn sharply
Areas of exploration
Test variations to front and rear mechanisms to scale
Hybrid mechanical and electrical system

SLIDE 6

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Sure Stop
One brake lever controls braking on

both wheels

Anti-Lock Braking Systems
Vibrations prevent brakes from locking
Espensive electrical system

SLIDE 7

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~80 million bike riders
Mountain bike sales
~25% of all US sales accounted by mountain bikes
>35% of projected future sales
>$45 billion global bike market
Growing steadily at ~5% per year