Senior Project 2 Progress Report

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.

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

Matthew Wright

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>

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

James VanBiervliet

A full scale model was created from wood

Using the finalized dimensions obtained from model, a roll bar was designed

The frame was then broken down into elements and nodes

Pieces of bamboo were then cut according to the list of elements

Dante Mucaro

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

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

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

Twin disc mounts for standard 6-bolt rotors

Machined from 6061 aluminum stock

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

Rich Nelson

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

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

Took cross sections from CAD model

Made wooden cross sectional templates

Using wood templates to shape foam into plug

Next – Sand plug smooth, prepare for Vacuum Bagging

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