Transcript 2. Concept presentation

Improving Tricycle Biomechanics:
Concept
Tricycle Biomechanics Team
March 22, 2007
Xin He, Katherine Wong, Mario Bollini,
Elizabeth Au, Lindsay Todman
Community Partnership
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Abdullah: tricycles versus wheelchairs
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
Rory: synchronous versus
asynchronous crank
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Medical, environmental, stigmatic
reasons
Power efficiency, mobility
General difficulty in communication
Concept: Modify Current
System
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
Provides tangible results
for community partners by
the end of the term.
Will seek to optimize:




Gear ratio
Crank configuration
(synchronous vs.
asynchronous)
Crank position
Steering system
Modules


Steering
Gears


Crank



Ratio, derailers,
speed, arms
Symmetric and
Asymmetric
Adjustability
Position
Next Step:
Testing power output
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
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Find the maximum power output for
different people using the hand crank
This power output should be measured
for a reasonable period of time to
ensure it is sustainable
Vary the position of the crank and see
how the power output changes