A wheel tractor-scraper is operating on a level grade. Assume no power derating is required for equipment condition, altitude, and temperature. Use equipment data from Figure 6.10. a. Disregarding traction limitations, what is the maximum value of rolling resistance (in lb/ton) over which the fully loaded unit 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? For the fully loaded condition, 52% of the weight is distributed to the drive axle. Operating weight of the empty scraper is 74,946 lb.
A wheel tractor-scraper is operating on a level grade. Assume no power derating is required for equipment condition, altitude, and temperature. Use equipment data from Figure 6.10. a. Disregarding traction limitations, what is the maximum value of rolling resistance (in lb/ton) over which the fully loaded unit 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? For the fully loaded condition, 52% of the weight is distributed to the drive axle. Operating weight of the empty scraper is 74,946 lb.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
100%
6.11 A wheel tractor-scraper is operating on a level grade. Assume no power derating is
required for equipment condition, altitude, and temperature. Use equipment data from
Figure 6.10.
a. Disregarding traction limitations, what is the maximum value of rolling resistance (in
lb/ton) over which the fully loaded unit 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? For the fully loaded
condition, 52% of the weight is distributed to the drive axle. Operating weight of the
empty scraper is 74,946 lb.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Fundamentals of Structural Analysis
Civil Engineering
ISBN:
9780073398006
Author:
Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:
McGraw-Hill Education
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning