Transcript 幻灯片 1

Improving Tricycle Biomechanics:
Strategy
Tricycle Biomechanics Team
March 3, 2007
Xin He, Tess Veuthey, Katherine
Wong, Mario Bollini, Elizabeth Au,
Lindsay Todman
http://web.mit.edu/sp.784/www/projects.html
Functional Requirements

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Ergonomics
Aesthetics
Adaptability to different disability needs
Increase power output efficiency
Improve tricycle simultaneous
power and steering
Power and Steering
http://www.unescap.org/esid/psis/disability/decade
/publications/z15001p1/z1500104.htm
rating
durability
aesthetics
terrain
weight/portability
complexity
flexibility (changes for different user sizes)
local manufacturing (repair, materials)
time to make
performance
cost
ability of use by a person with spinal injuries
integration with steering system
push ring symmetric lever asymmetric lever symmetric crank asymmetric crank row
5
1
0
0
0
0
1
0
0
0
0
0
4
-1
-1
0
-1
0
1
1
0
0
0
0
2
1
-1
-1
0
0
2
1
1
1
0
0
4
0
0
0
0
0
2
1
-1
-1
0
0
5
-2
0
0
0
0
4
1
1
-1
0
0
5
-1
-3
0
-2
0
-6
1
1
0
0
independent crank
0
-1
-1
0
-1
0
0
-1
-1
-1
1
0
0
0
-1
-1
0
0
-1
-1
-1
-16
-1
-19
Future Plans
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Short Term:

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Develop a more thorough understanding
of the steering and power systems
through experimentation on the tricycles.
Long Term:

Use the information we gathered to design
a power-steering system that is easier to
use and more efficient than the handcrank and steering system.
Mentors & Community Partners
•Amos Winter
•Gwyn Jones
•Ralf Hotchkiss
•Aaron Wheeler
•Rory McCarthy
•Henry Chacha and Erasto Elias at DAGE
•Peter Mbugua and Alfred Matoi at APDK
•Casserdy Magaya and Rasta Nazarite at
Disacare
Current Designs
http://web.mit.edu/sp.784/www/projects.html
http://www.unescap.org/esid/psis/disability/
decade/publications/z15001p1/z1500104.htm
http://www.spinlife.com/category.cfm?categoryID=8