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Copy of 11.07 MIT Gear Lab - final

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by

Zane Groshelle

on 15 November 2013

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Transcript of Copy of 11.07 MIT Gear Lab - final

THE JAIPUR FOOT
OUR GOAL
Durable
Lightweight
Mass Produced
Globally Compatible
REINVENTING MARKETS FOR AUTOMOTIVE TECHNOLOGIES
PROF. AMOS WINTER
WHAT MAKES A PROSTHETIC FEEL GOOD?
Roll-Over Shape
Force
-5
0
5
10
15
0
-5
-15
-10
Shape X (cm)
Shape Y (cm)
FLEXWALK
MATCHED TO HEALTHY ROLL-OVER SHAPE
DEVELOPING WORLD FEET
0.2
0.1
0
-0.1
-0.2
-0.2
Roll-Over Shape
Force
-0.1
0
0.1
0.2
0.3
X Position Relative to Ankle Frame [m]
Y Position Relative to Ankle Frame [m]
AIM:
SCIENTIFIC + SOCIAL
IMPACT
ENERGY STORAGE
CORRECT
ROLL-OVER SHAPE
PROOF OF CONCEPT
FOOT AS SPRING
Compliant structure optimization
Material choice
Manufacturing
NEXT STEPS
distributed annually
23,000
Roll-Over Shape
& Energy Storage
LIMITATIONS
Heavy
Handmade
Nonstandard
Not ISO Compliant
Socioeconomic-driven product design
Socioeconomic factors
HARDWARE
RESEARCH
DISSEMINATION
WHAT MAKES A PROSTHETIC FEEL GOOD?
Global Engineering and Research
(GEAR) Lab
MIT Department of Mechanical Engineering
Stance stability
Aesthetics
HARSH ENVIRONMENTS
COMPLIANT
COMPOSITE
VULCANIZED RUBBER
WOOD
FOAM RUBBER
NYLON BANDS
Compliant mechanism design
Compliant mechanism design
Gait and motion analysis
Composite material optimization
Patient needs
Dissemination
PERFORMANCE OPTIMIZATION
LOCAL CONSIDERATIONS
ENGINEERING + PRODUCT DESIGN
F
FLEXWALK
HEALTHY FOOT
Correct rollover shape with maximum energy storage.
DISRUPTIVE OPPORTUNITY:
F
GLOBALLY DISRUPTED
Performance
Cost
Full transcript