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SOLID-STATE PROSTHETIC ARM
A M U LT I D I S C I P L I N A RY C A P STO N E S E N I O R
D E S IG N PRO J E C T W IT H T HE C O O PE R AT IO N
OF MECHANICAL (MAE) AND ELECTRICAL
(ECE) ENGINEERING DEPARTMENTS
M A E 4 3 5 : M IDT E R M PR E S E N TAT IO N
2014 - 2015 Team:
Michael DiGiacomo
Peter Dinga
Joseph Flores
Taylor Jones
Shelby Nedrick (Team Leader)
Denzel Stewart (ECE)
Advisor: Onur Bilgen
PROJECT BREAKDOWN
Structural Component
Artificial Muscle Bundle
Electronic Circuit Board
2
STRUCTURAL: DESIGN
First Simple Joint Design
First Prototype
Second Iteration Test Swatches
3
STRUCTURAL: JOINT TESTING
FAT IG U E T E ST S
DEFLECTION TESTS
PLA ST IC D E FO R M AT IO N
4
ARTIFICIAL MUSCLE: MUSCLE BUNDLE
Muscle Mold
Muscle Bundle Wire Configuration
End Cap
Layout
Epoxy
Silicone
5
ARTIFICIAL MUSCLE: CURRENT BUNDLE DATA
Heating and Cooling Data Comparison
6
ELECTRONICS: CIRCUIT PROTOTYPE
Current prototype
• Permanent, smaller configuration
• Utilizes pushbutton control
• Optimizing layout to avoid shorting
Power/ Ground
SMA Wire Attachment
N-Type MOSFET
Switch
Prototype Circuit
7
CONTROLS: PROPOSED INTEGRATION
Controls and Artificial Muscle
 Incorporate C-DAQ with circuit
 Compact Data Acquisition System
 Allowing for PC control
 Operating circuit and collecting data
Battery
Circuit
SMA
Structure
Integration and Manual Control
PC
Battery
USB
CDAQ
Circuit
SMA
Structure
Integration and Digital Control
8
9
GANTT
BUDGET BREAKDOWN
Subgroup
Item
Structural
Design
Rapid
Prototyping
Artificial
Muscle
Item Cost
Shipping
Purchase
d
Anticipated
Order
Total
-
-
-
Drill Bits
109.7
11.46
Yes
121.16
MOSFET
28.14
-
Yes
28.14
Electronics
& Controls
Mini
Pushbutton
Switch
3.20
9
Yes
12.20
Team
Supplies
Presentation
Board
7.99
-
Yes
7.99
Total Spent
169.49
Budget
Remaining
1830.51
10
SUMMARY
•
Items completed
• Joint Swatch Testing
• Muscle Molding Procedure
• C-DAQ Integration
•
Currently in the process of
• 3rd iteration of joint design
• C-DAQ Integration Testing
•
Milestone Met
• First Component Prototypes- End of the February
•
Budget Analysis
• Under budget
11
QUESTIONS
12