1. Solid-State Prosthetic Arm
A Multidisciplinary capstone senior design project with the cooperation of mechanical (MAE) and electrical (ECE) engineering Departments
MAE 435: Midterm Presentation
Team:
Michael DiGiacomo
Peter Dinga
Joseph Flores
Taylor Jones
Shelby Nedrick (Team Leader)
Denzel Stewart (ECE)
Advisor: Onur Bilgen
Add Departments!!! BOTH MAE and ECE
Add Denzel!! – This is a multidisciplinary project.

2. Project Breakdown Structural Component Electronic Circuit Board
Artificial Muscle Bundle
DO not use “Figure X” in figure captions. (that practice is for papers only)
Fix this throughout the presentation.

3. Structural: Design Completed Brainstorm ideas
First Simple Joint Design
First Prototype
Completed
Brainstorm ideas
Draw possible designs using Inventor (Autodesk- San Rafael, California)
Perform Stress Analysis
Print out joints
Evaluate designs
Reiteration
Second Iteration Test Swatches

4. Structural: Joint Testing
Fatigue tests
Deflection tests
Deflection results
Number of Configurations
Directly proportional
Geometry
Triangular
1-3 Configurations
Round
4-5 Configurations
Print
Cross
Failed under load
Fatigue Testing
All joints capable of bending 45 and 90 degrees
50 45 degrees
1-3 corigations suffered from deformation
4& 5 cycles did not
plastic Deformation

5. Artificial Muscle: Muscle Bundle
Muscle Mold
Muscle Bundle Wire Configuration
End Cap
Layout
Epoxy
Silicone

6. Artificial Muscle: Current Bundle Data
Heating and Cooling Data Comparison

7. Electronics: Circuit Prototype
Current prototype
Permanent, smaller configuration
Utilizes pushbutton control
Optimizing layout to avoid shorting
Power/ Ground
SMA Wire Attachment
N-Type MOSFET
Circuit used to heat SMAs
Single channel recreation
Based on previous design
Utilizes N-Type MOSFET transistor
Opening and closing the circuit
Actuates 1 SMA wire bundle
Switch
Prototype Circuit

8. 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 PC
Battery
Circuit
SMA
Structure
USB CDAQ
Circuit
SMA
Structure
Integration and Manual Control
Integration and Digital Control

9. Gantt
11/19/2018

10. Budget Breakdown Subgroup Item Item Cost Shipping Purchased
Anticipated Order
Total
Structural Design
Rapid Prototyping -
Artificial Muscle
Drill Bits
109.7
11.46
Yes
121.16
Electronics & Controls
MOSFET
28.14
Mini Pushbutton Switch
3.20 9
12.20
Team Supplies
Presentation Board
7.99
Total Spent
169.49
Budget Remaining

11. 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

12. Questions