Propulsion Team Overview
End of Year Update
Figure 5 Propulsion Team Current Prototype
Figure 6 Transmission and Housing
Figure 7 Drive Shaft
Figure 8 Rotacaster Wheels and Torque Transmitter 
Figure 9 Attachment mechanism that clamps to the frame of the wheelchair 
Figure 10 Stress Analysis on the attachment rod
Figure 11 Connection between the transmission and housing and the attachment rod
Figure 12 Spring Attachment Bar 
Figure 13 Spring Assembly including the spring, attachment bar and two part aluminum housing
Figure 14 Battery housing
Progress Update: Mid-March
Motor Test Run
End of the First Semester Designs
Conceptual Designs
Figure 1 Propulsion system with belt driven wheel
Figure 2(a) Propulsion system with singular wheel
Figure 2(b) Propulsion system with one wheel possible configurations
Figure 3(a) Propulsion system with two wheel
Figure 3(b) Propulsion system with two wheel possible configurations
Figure 4 Propulsion system with two wheels
Figure 5 Propulsion system with one wheel
Figure 6 Propulsion system attachments configuration
Figure 7 Propulsion system attachments configuration
Figure 8 Propulsion system attachment and wheel configuration
Figure 9 Propulsion system attachment, transmission, and wheel configuration
Calculations and FEA Analysis
Figure B.14 ANSYS stress analysis for attachment full span shows maximum stress as 9.014 ksi
Figure B.15 ANSYS stress analysis for attachment partial span shows maximum stress as 0.425 ksi
Figure B.16 ANSYS stress analysis for the hitch attachment shows maximum stress of 4.11 ksi
Figure B.17 Motor horsepower calculations in MATLAB
Figure B.18 Battery ampere hour calculations for chosen motor in MATLAB for running motor at 100% and 50%
Figure B.19 Distance calculations based on battery capacity for chosen motor in MATLAB for running motor at 100% and 50%
Figure B.20 Gear ratio calculations in MATLAB