senior project progress report
TRANSCRIPT
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Senior Project 2 Progress Report
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Design and construct,
respective of constraints,
a single-rider recumbent fully faired human
powered vehicle.
Compete and win the 2010 ASME East Human Powered Vehicle Challenge.
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Matthew Wright
◦ Team Manager/Seating Position/Steering
James VanBiervliet
◦ Frame
Dante Mucaro
◦ Drivetrain/Frame Integrations
Rich Nelson
◦ Fairing
◦ Advisor: Dr. Lisa Grega
◦ Co-Advisors: Dr. Norman AsperDr. Manish Paliwal
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Matthew Wright
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Assisting other team members with all aspects of the project build
Making sure parts and materials are ordered and ready when needed.
Making sure the project is staying within budget,
Completing application process for competition
Keeping the team website up to date <TCNJhumanpowered.blogspot.com>
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Modified frame design from
mock up due to the rider position
Ordering a 20” solid front fork with
disc brake mounts◦ Will weld mounts for other front brake
Begin manufacturing
steering assembly
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James VanBiervliet
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A full scale model was created from wood
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Using the finalized dimensions obtained from model, a roll bar was designed
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The frame was then broken down into elements and nodes
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Pieces of bamboo were then cut according to the list of elements
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Dante Mucaro
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Gearing 50-34T crankset replaced in favor of 50-36-22T triple
ring crankset
10spd 11-28T cassette replaced with 9spd 11-34T cassette
Crank arm design modified to collar-type adjustable crank mount
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Drive chain ratio Crankset sprocket Cassette Sprocket Driven chain ratio Total drive ratio Development (ft)Equivalent Speed
(MPH)
0.6415 22 34 1.545 0.991 6.87 7.02
0.6415 22 30 1.364 0.875 7.78 7.96
0.6415 22 26 1.182 0.758 8.98 9.18
0.6415 22 23 1.045 0.671 10.15 10.38
0.6415 22 20 0.909 0.583 11.67 11.94
0.6415 22 17 0.773 0.496 13.73 14.04
0.6415 22 15 0.682 0.437 15.56 15.92
0.6415 22 13 0.591 0.379 17.96 18.36
0.6415 22 11 0.500 0.321 21.22 21.70
0.6415 36 34 0.944 0.606 11.23 11.49
0.6415 36 30 0.833 0.535 12.73 13.02
0.6415 36 26 0.722 0.463 14.69 15.03
0.6415 36 23 0.639 0.410 16.61 16.99
0.6415 36 20 0.556 0.356 19.10 19.53
0.6415 36 17 0.472 0.303 22.47 22.98
0.6415 36 15 0.417 0.267 25.47 26.04
0.6415 36 13 0.361 0.232 29.38 30.05
0.6415 36 11 0.306 0.196 34.73 35.51
0.6415 50 34 0.680 0.436 15.60 15.96
0.6415 50 30 0.600 0.385 17.68 18.09
0.6415 50 26 0.520 0.334 20.40 20.87
0.6415 50 23 0.460 0.295 23.07 23.59
0.6415 50 20 0.400 0.257 26.53 27.13
0.6415 50 17 0.340 0.218 31.21 31.92
0.6415 50 15 0.300 0.192 35.37 36.17
0.6415 50 13 0.260 0.167 40.81 41.74
0.6415 50 11 0.220 0.141 48.23 49.33
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27 available speeds vs. previous 20 speeds
Broader range of gearing “Granny” gear equivalent speed decreased ~40%
Top gear equivalent speed increased ~13.5%
Negligible cost impact
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Twin disc mounts for standard 6-bolt rotors
Machined from 6061 aluminum stock
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Components ordered Cassette, crankset, bottom brackets, single sprockets,
chain, derailleur (F&R), rims & spokes, brake rotors & calipers, shifters, cables
Front hub and wheel construction To be completed by March 8
Crank arm implementation To be integrated into frame structure prior to frame
completion
Rear dropout fabrication Design to be finalized and implemented prior to frame
completion
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Rich Nelson
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Design and construct,
respective of constraints,a single-rider recumbent fully faired humanpowered vehicle.
Compete and win the 2010 ASME East Human Powered Vehicle Challenge.
Velocity Contour Plot Pressure Streamlines
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Drag Force (lb) Surface Drag (lb) Total Drag (lb) Lift Force (lb)
Fairing 1 2.1729 0.79 2.9629 0.326
Fairing 2 2.277 0.81 3.087 0.013
Fairing 3 2.926 0.83 3.756 0.83
#1
#2
#3
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Took cross sections from CAD model
Made wooden cross sectional templates
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Using wood templates to shape foam into plug
Next – Sand plug smooth, prepare for Vacuum Bagging
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1. Vacuum bag layup of both halves of Fairing
2. Cut out top hatch of fairing and wheel cutouts
3. Integrate fairing into the frame and fiberglass halves together
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