Propulsion Team Overview
End of Year Update
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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
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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
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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