Design
Concept
Our human powered vehicle will be a single rider vehicle for transportation on land only. The vehicle will be a two wheeled, front-wheel drive recumbent style bicycle, with a full lightweight fairing for aerodynamic purposes. A front-wheel drive train was chosen over rear wheel because of the significantly shortened chain length as well as the simplified routing of guides. By avoiding the chain passing under the seat, the rider will be able to sit in a lower position having the benefit of increased aerodynamics. During the preliminary design, a frame material of 6061 T6 Aluminum was selected because it is the least expensive and most versatile of the heat treatable aluminum alloys. It offers a range of good mechanical properties, good corrosion resistance and can be welded by all methods.
Estimated Budget
|
A. Parts and Supplies |
|
|
|
I. Frame |
|
|
|
|
Main frame (Al) |
350 |
|
|
Roll bar |
50 |
|
|
Handlebars |
50 |
|
|
Subframe (Al) |
50 |
|
|
Total |
500 |
|
II. Fairing |
|
|
|
|
Carbon fiber |
400 |
|
|
Resin |
150 |
|
|
Hardener |
75 |
|
|
Total |
625 |
|
III. Bicycle parts |
|
|
|
|
20" fork |
50 |
|
|
20" wheelset |
350 |
|
|
Tires/tubes |
55 |
|
|
Crank arms |
100 |
|
|
Bottom bracket |
25 |
|
|
Large chainring |
80 |
|
|
Pedals |
30 |
|
|
Rear derailleur |
60 |
|
|
Chain |
30 |
|
|
Cassette |
55 |
|
|
Headset |
50 |
|
|
Brakes |
60 |
|
|
Total |
945 |
|
IV. Misc. |
|
|
|
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Seat parts |
35 |
|
|
Hardware |
15 |
|
|
Total |
50 |
|
V. Travel |
|
|
|
|
Fuel (1812miles, 13mpg, $2.25/gal) |
627 |
|
|
Van rental (7 days) |
560 |
|
|
Hotel (3 nights) |
237 |
|
|
Registration |
150 |
|
|
Team member registration($20/person) |
100 |
|
|
Food ($20/day per person) |
500 |
|
|
Total |
2174 |
|
|
Total project costs |
4294 |
TTU, Mechanical Engineering Dept., 7th and Boston, Lubbock, TX 79409
806.742.3451