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y = .075/(Vmax-Vmin) **(this is the number of inches that the tire should expand given the current velocity.)** |
y = .075/(Vmax-Vmin) **(this is the number of inches that the tire should expand given the current velocity.)** |
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http://www.youtube.com/v/V3yj_OGezWc?version=3 |
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Revision as of 21:18, 31 October 2010
For this homework assignment I wanted to try and see if I could find a correlation between a dragsters rear tire expansion in comparison to its velocity by using either the method of Laplace transform or the Fourier series. To help me with my model I will me using the Army's dragster for some of my data. If you would like to check it out you can find it at [1].
Data:
- Outside tire diameter = 36.5" or up to 40.5" due to tire expansion
- Inside tire diameter = 16"
- Width of tire = 17"
- Air pressure in tire = 7 psi
- Volume of Tire = 9.82 ft^3 **(you have to add about 1.5ft^3 to account for possible expansion)**
- Fastest quarter mile time = 4.428 sec
- Fastest quarter mile speed = 337.58
Equations: Volume = [(pi)*(R^2)(h)-(pi)*(r)(h)]
y = .075/(Vmax-Vmin) **(this is the number of inches that the tire should expand given the current velocity.)** http://www.youtube.com/v/V3yj_OGezWc?version=3