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| Teaching Since: | May 2017 |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
A wheel-tractor scraper is operating on a level grade. Assume no power derating is required for equipment condition, altitude, temperature, and so on. Use the scraper specifications in Table 8.1 and the "performance charts" in Figs. 8.9 and 8.10. .
a. Disregarding traction limitations, what is the maximum value of rolling resistance (in pounds per ton) over which the fully loaded scraper can maintain a speed of 15 mph?
b. What minimum value of coefficient of traction between the tractor wheels and the traveling surface is needed to satisfy the requirements of part a of the question?


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